Radiologia Brasileira via MedWorm.com

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Radiologia Brasileira — Sat, 14 Jan 2012 19:42:51 +0100

(Source: Radiologia Brasileira)

Breast hemangioma mimicking metastasis at PET-CT

Radiologia Brasileira — Sat, 14 Jan 2012 19:42:51 +0100

Hemangioma de mama é um tumor benigno raro que apresenta pouca ou nenhuma captação de 18F-flúor-2-deoxi-Dglicose (FDG) na tomografia por emissão de pósitrons (PET). Relatamos um nódulo mamário compatível, patologicamente, com hemangioma, em uma mulher cuja PET scan demonstrou captação elevada de FDG (simulando tumor maligno). Também fizemos breve revisão das causas que levam a resultados falso-positivos e falso-negativos pela PET.Breast hemangioma is a rare benign tumor that presents either absent or low 18F-fluoro-2-deoxy-D-glucose (FDG) uptake at positron emission tomography (PET). The authors report the case of a breast nodule pathologically compatible with hemangioma in a woman whose PET-scan has demonstrated increased FDG uptake (simulating a malignant tumor). A brief rev...

Basal sphenoethmoidal encephalocele in association with midline cleft lip and palate: case report

Radiologia Brasileira — Sat, 14 Jan 2012 19:42:51 +0100

Associação de encefalocele basal esfenoetmoidal com fissura labiopalatina é extremamente rara. Relatamos um caso de uma criança de nove anos de idade apresentando uma fissura facial mediana com meningocele, que era evidente através da falha do palato como uma massa mediana intranasal pulsátil. Uma análise dos aspectos clínicos e radiológicos deste caso de disrafia craniana foi realizada.Association of basal sphenoethmoidal encephalocele with midline cleft lip and palate is extremely rare. The authors report the case of a nine-year-old girl presenting a midline facial cleft with meningocele that was noticeable through the palatine defect as a medial intranasal pulsatile mass. An analysis of clinical and radiological findings of the present case of cranial dysraphism is carried out....

Pulmonary artery aneurysms in Behçet's disease: case report

Radiologia Brasileira — Sat, 14 Jan 2012 19:42:51 +0100

A doença de Behçet é uma doença inflamatória que pode envolver o tórax manifestando-se pela presença de aneurismas das artérias pulmonares. Relatamos um caso de doença de Behçet cujas alterações observadas em radiografias e tomografia computadorizada do tórax sugeriram a possibilidade do diagnóstico.Behçet's disease is an inflammatory disease that may involve the chest, manifesting itself by the presence of pulmonary artery aneurysms. The authors report a case of Behçet's disease where findings at chest radiography and computed tomography have suggested the possibility of the diagnosis. (Source: Radiologia Brasileira)

Impact of radiotherapy on the orofacial region and management of related conditions

Radiologia Brasileira — Sat, 14 Jan 2012 19:42:51 +0100

A radioterapia em região de cabeça e pescoço provoca inúmeras sequelas ao paciente irradiado, afetando o sistema estomatognático e com repercussões sistêmicas importantes. As sequelas da radiação ionizante podem ser extensas e, algumas vezes, permanentes, em especial nas glândulas salivares e no tecido ósseo. É relevante que o cirurgião dentista tenha conhecimento das reações adversas e das formas adequadas de prevenção e tratamento para amenizar o desconforto e melhorar a condição de vida do paciente irradiado. Portanto, a conscientização e motivação deste paciente, com a promoção de saúde oral através da adequação do meio bucal e orientações sobre ações preventivas, são essenciais para se obter o melhor prognóstico.Head and neck radiotherapy causes coun...

Gallbladder wall thickening at ultrasonography: how to interpret it?

Radiologia Brasileira — Sat, 14 Jan 2012 19:42:51 +0100

O objetivo desta revisão é fornecer auxílio na interpretação correta do espessamento das paredes da vesícula biliar e seus possíveis diagnósticos diferenciais. O espessamento da vesícula biliar é um achado frequente em exame de ultrassonografia e um tema de grande interesse, por ter sido considerado durante muito tempo como sinal específico de colecistite aguda, apesar de se reconhecer que ocorre em uma série de outras situações clínicas. A adequada caracterização e interpretação desse achado é de grande importância, pois o diagnóstico correto tem impacto direto no tratamento, que em alguns casos inclui intervenção cirúrgica. Neste artigo procuramos apresentar um conjunto de sinais ultrassonográficos que, associados ao quadro clínico e laboratorial do paciente, p...

Integrating computer-aided diagnosis tools into the picture archiving and communication system

Radiologia Brasileira — Sat, 14 Jan 2012 19:42:51 +0100

CONCLUSION: The proposed integration model is based on IHE profiles and allows the establishment of standardized procedures. The principles used to integrate the workflow are applicable to any non-interactive post-processing task. (Source: Radiologia Brasileira)

Simulation and dosimetric analysis of proton and carbon ion therapy in the treatment of uveal melanoma

Radiologia Brasileira — Sat, 14 Jan 2012 19:42:51 +0100

CONCLUSION: The described benefits together with the presented results contribute to the development of clinical applications and researches on carbon ion and proton therapy. (Source: Radiologia Brasileira)

Indications for breast magnetic resonance imaging in an oncology reference center

Radiologia Brasileira — Sat, 14 Jan 2012 19:42:51 +0100

CONCLUSION: In spite of inconclusive findings at conventional imaging studies being the most common indication for breast magnetic resonance imaging, there is no evidence in the literature supporting such a conduct. Because of its high sensitivity and high rate of false positive results, magnetic resonance imaging should be appropriately indicated in order to avoid unnecessary procedures. Once such method is appropriately indicated, it may contribute in the decision making process, constituting an essential tool in the assessment of breast lesions. (Source: Radiologia Brasileira)

Sonographic evaluation of esophageal transit time: influence of gender and body mass index

Radiologia Brasileira — Sat, 14 Jan 2012 19:42:51 +0100

CONCLUSION: Data regarding esophageal transit time for liquid (water) and pasty (yogurt) food swallowed by young adults in the orthostatic position did not demonstrate any difference between genders even in women with lower body mass index as compared with men. (Source: Radiologia Brasileira)

Sonographic evaluation of temporomandibular joint internal disorders

Radiologia Brasileira — Sat, 14 Jan 2012 19:42:51 +0100

CONCLUSION: With the present study, the authors can conclude that ultrasonography offers high sensitivity and specificity in the diagnosis of the articular disc location with the patient at rest, either to analyze anatomical position or to analyze disc displacement. On the other hand, it does not offer significant results to analyze articular discs in patients with open mouth as well as to analyze disc/condyle morphological changes. (Source: Radiologia Brasileira)

Sonographic evaluation of cerebral ventricular system in healthy, full term infants aged 1-6 months

Radiologia Brasileira — Sat, 14 Jan 2012 19:42:51 +0100

CONCLUSION: Sonographic findings related to temporal/posterior horns and third ventricle associated with the 95th percentile as upper limit of normality can be utilized as parameters for a simplified diagnosis of mild ventricular dilatation. (Source: Radiologia Brasileira)

Use of drug-eluting stents for the treatment of vertebral artery stenosis

Radiologia Brasileira — Sat, 14 Jan 2012 19:42:51 +0100

CONCLUSION: The present study suggests that vertebral artery angioplasty with paclitaxel-eluting stents is a feasible and promising technique in terms of safety and effectiveness in the prevention of recurrent ischemia and restenosis. (Source: Radiologia Brasileira)

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Radiologia Brasileira — Sat, 14 Jan 2012 19:42:51 +0100

(Source: Radiologia Brasileira)

Digital authentication of medical records: have we found a solution?

Radiologia Brasileira — Sat, 14 Jan 2012 19:42:51 +0100

(Source: Radiologia Brasileira)

Gorham's disease of scapula and clavicle: case report and two-year follow-up of a rare disorder

Radiologia Brasileira — Fri, 04 Nov 2011 05:54:29 +0100

A doença de Gorham é uma rara desordem osteolítica, de etiologia controversa, que pode afetar qualquer osso. O substrato histopatológico é a substituição óssea por uma formação expansiva de natureza vascular agressiva, não neoplásica. Descrevemos os achados radiográficos, tomográficos e de ressonância magnética de um caso desta afecção acometendo a escápula esquerda e, dois anos depois, a clavícula ipsilateral.Gorham's disease is a rare osteolytic disorder of still controversial etiology that may affect any bone. The histopathological substrate for such a condition is the replacement of normal bone by aggressive non-neoplastic expansile vascular tissue. The authors describe radiographic, computed tomography and magnetic resonance imaging findings in a case of this entit...

Chilaiditi's syndrome: a case report

Radiologia Brasileira — Fri, 04 Nov 2011 05:54:29 +0100

Os autores apresentam um caso de síndrome de Chilaiditi em uma mulher de 56 anos de idade. Mesmo tratando-se de condição benigna com rara indicação cirúrgica, reveste-se de grande importância pela implicação de urgência operatória que representa o diagnóstico equivocado de pneumoperitônio nesses pacientes. É realizada revisão da literatura, com ênfase na fisiopatologia, propedêutica e tratamento desta entidade.The authors report a case of Chilaiditi's syndrome in a 56-year-old woman. Although this is a benign condition with rare surgical indication, it has great importance for implying surgical emergency in cases where such condition is equivocally diagnosed as pneumoperitoneum. A literature review is performed with emphasis on pathophysiology, diagnostic work-up and treat...

Granular cell tumor with orbital involvement in a child

Radiologia Brasileira — Fri, 04 Nov 2011 05:54:29 +0100

Os autores relatam um raro caso de tumor de células granulares no músculo reto medial de um menino de sete anos de idade. São descritos os achados clínicos, histológicos e radiológicos do caso, bem como uma breve revisão da literatura.The authors report a rare case of granular cell tumor in the left medial rectus muscle of a seven-year-old boy. Clinical, pathologic and radiologic findings of the present case are described and a brief literature review is undertaken. (Source: Radiologia Brasileira)

Imaging findings in acute calcific prevertebral tendinitis

Radiologia Brasileira — Fri, 04 Nov 2011 05:54:29 +0100

A tendinite calcária aguda pré-vertebral é uma condição benigna e rara que apresenta calcificação das fibras do músculo longo do pescoço com reação inflamatória local, sendo esta uma das formas de apresentação menos frequentes da doença por deposição de hidroxiapatita de cálcio. Manifesta-se com dor cervical aguda e/ou odinofagia, podendo ser erroneamente diagnosticada como abscesso retrofaríngeo, espondilodiscite ou alteração decorrente de trauma. Os achados radiológicos na tendinite calcária pré-vertebral são patognomônicos. O conhecimento de tais achados é muito importante, pois o correto diagnóstico possibilita a resolução precoce dos sintomas e evita intervenções desnecessárias em um paciente que apresenta afecção com boa resposta ao tratamento conse...

Computed tomography of intra- and extramural ethmoid cells: iconographic essay

Radiologia Brasileira — Fri, 04 Nov 2011 05:54:29 +0100

O desenvolvimento dos seios paranasais é um processo intricado que se inicia na vida intrauterina e termina na idade adulta. Dos seios da face, as células etmoidais são provavelmente as estruturas mais complexas e as que estão associadas com o maior número de variantes da normalidade. Variações no padrão de pneumatização das células etmoidais podem ser divididas em intra ou extramurais. Intramurais são aquelas que ao se desenvolverem mantêm contato com o labirinto etmoidal, e extramurais as que se desenvolvem isoladamente. A tomografia computadorizada é a ferramenta mais útil na avaliação de processos inflamatórios dos seios paranasais. De igual modo, ela é importante para o planejamento pré-operatório e controle pós-operatório, pois possibilita grande detalhe anatô...

Computed tomography-guided transthoracic needle biopsy of pulmonary nodules

Radiologia Brasileira — Fri, 04 Nov 2011 05:54:29 +0100

Biópsia percutânea dirigida por tomografia computadorizada tem sido amplamente utilizada como um procedimento efetivo e seguro para obtenção de diagnóstico histológico em muitas situações clínicas e em diversos órgãos. No pulmão, a biópsia percutânea tornou-se uma das principais escolhas para investigação de nódulos e massas. Sua versatilidade permite o acesso de lesões nas diversas localizações do pulmão, podendo ser utilizada para lesões periféricas e profundas mesmo de pequenas dimensões. Discutiremos as indicações, os aspectos técnicos do procedimento e os índices esperados de sucesso e complicação das biópsias percutâneas de nódulos e massas pulmonares.Computed tomography-guided needle biopsy has been widely utilized as an effective and safe diagnostic...

Diffusion in the head and neck: an assessment beyond the anatomy

Radiologia Brasileira — Fri, 04 Nov 2011 05:54:29 +0100

DWI/ADC is a completely non-invasive technique that has been successfully conducted for many years in brain imaging and is currently being studied for the assessment of other organs, such as the abdomen and pelvis and in particular the head and neck structures. Even though DWI and the ADC measurement are able provide tissue information at the cellular level, most imaging centers have not yet adopted them as part of their routine evaluation of the head and neck. DWI has demonstrated usefulness to discriminate specific histological tumor types, especially to differentiate benign solid lesions from malignant masses, to evaluate lymph nodes, particularly to differentiate benign disease from malignancy, to differentiate postradiation changes from residual tumor and potentially to predict therap...

Radiographic processing effluents management status in healthcare centers

Radiologia Brasileira — Fri, 04 Nov 2011 05:54:29 +0100

CONCLUSION: The present study results demonstrate the need for a closer surveillance, control and monitoring by the competent agencies, encouraging the pretreatment of such effluents in order to minimize their impact on public health and the environment. (Source: Radiologia Brasileira)

Effect of ionizing radiation on the taste function of patients submitted to head and neck radiotherapy

Radiologia Brasileira — Fri, 04 Nov 2011 05:54:29 +0100

CONCLUSION: Ionizing radiation alters the taste function of patients submitted to head and neck radiotherapy. (Source: Radiologia Brasileira)

Evaluation of morphometric parameters calculated from breast lesion contours at ultrasonography in the distinction among BI-RADS categories

Radiologia Brasileira — Fri, 04 Nov 2011 05:54:29 +0100

CONCLUSION: These results indicate that morphometric analysis of breast lesions at ultrasonography seems to be helpful in distinguishing patients who should undergo biopsy from those to be followed-up only with imaging methods. (Source: Radiologia Brasileira)

Graduating 4th year radiology residents' perception of optimal imaging modalities for neoplasm and trauma: a pilot study from four U.S. universities

Radiologia Brasileira — Fri, 04 Nov 2011 05:54:29 +0100

CONCLUSION: Residents' perception of the best imaging modalities for neoplasm and trauma concurred with the appropriateness criteria by the ACR.OBJETIVO: Avaliar a percepção de médicos residentes em radiologia de 4º ano sobre as melhores modalidades de imagem na investigação de neoplasias e trauma. MATERIAIS E MÉTODOS: Vinte e sete médicos residentes de 4º ano de quatro programas de residência em radiologia americanos participaram do estudo. Aos participantes foi perguntado sobre a melhor modalidade de imagem para se avaliar o cérebro e a coluna vertebral, pulmões, abdome e o sistema musculoesquelético. As modalidades de imagem disponíveis foram: RM, TC, ultrassonografia, PET e radiografia simples. Todos os achados foram comparados com os Critérios de Adequação de Exames d...

Impact of 18F-FDG PET scan on the prevalence of benign thoracic lesions at surgical resection

Radiologia Brasileira — Fri, 04 Nov 2011 05:54:29 +0100

CONCLUSION: The introduction of FDG-PET scanning has not altered the proportion of patients undergoing thoracotomy for ultimately benign lesions, mainly due to the avidity for the isotope of some non-malignant lesions. Such false positive results need to be considered when patients with unconfirmed lung cancer are contemplated for surgical resection.OBJETIVO: A principal utilidade da tomografia por emissão de pósitrons com 18-fluordeoxiglicose (FDG-PET) está no estadiamento do câncer de pulmão. Porém, ela também pode ser utilizada para diferenciar lesões pulmonares indeterminadas, mas seu impacto na ressecção cirúrgica de lesões benignas é desconhecido. O objetivo deste estudo foi comparar a prevalência de lesões benignas em toracotomias feitas por suspeição de câncer de ...

Cancerization of lobules: correlation between mammography and histological findings

Radiologia Brasileira — Fri, 04 Nov 2011 05:54:29 +0100

CONCLUSION: In our cohort, the mammographic evaluation of patients with DCIS presenting cancerization of lobules demonstrated clusters of microcalcifications in a lobular distribution. Although clusters of round calcifications are typically associated with a benign process, cancerization of lobules by DCIS may produce a similar pattern, thus mimicking a benign condition. (Source: Radiologia Brasileira)

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Radiologia Brasileira — Fri, 04 Nov 2011 05:54:29 +0100

(Source: Radiologia Brasileira)

Research activities during medical residency

Radiologia Brasileira — Fri, 04 Nov 2011 05:54:29 +0100

(Source: Radiologia Brasileira)

Color Doppler of Meckel's diverticulum: report of two cases

Radiologia Brasileira — Tue, 13 Sep 2011 10:49:08 +0100

O divertículo de Meckel é a anomalia congênita mais comum do trato gastrintestinal e a hemorragia é a complicação mais frequente. Cintilografia, ultrassonografia modo B e com Doppler, e tomografia computadorizada podem ser utilizadas para detectar complicações. Descrevemos dois casos de divertículo de Meckel complicado detectados à ultrassonografia, cujos achados foram diferentes dos descritos na literatura.Meckel's diverticulum is the most common congenital anomaly of the gastrointestinal tract and bleeding is its most frequent complication. Scintigraphy, B-mode and Doppler ultrasonography, and computed tomography may be utilized to detect complications. The present report describes two cases of complicated Meckel's diverticulum detected at ultrasonography whose findings were di...

Spinal lipoma associated with congenital dermal sinus: a case report

Radiologia Brasileira — Tue, 13 Sep 2011 10:49:08 +0100

Os lipomas espinhais são raros, respondendo por 1% de todos os tumores espinhais, estando associados ao disrafismo espinhal oculto em mais de 99% dos casos. Estão divididos em três tipos principais: lipomielomeningocele, lipoma intradural e fibrolipoma do filo terminal. Este relato descreve um caso de lipoma lombossacral congênito associado a estigma cutâneo do tipo seio dérmico lombar congênito.Spinal lipomas are rare, accounting for 1% of all spinal tumors and being associated with occult spinal dysraphism in more than 99% of cases. Such lesions are divided into three main types, namely, lipomyelomeningoceles, intradural lipomas, and filum terminale fibrolipomas. The present report describes a case of congenital lumbosacral lipoma associated with cutaneous stigmata of the lumbar d...

Verrucous carcinoma of the hand: a rare presentation evaluated by magnetic resonance imaging

Radiologia Brasileira — Tue, 13 Sep 2011 10:49:08 +0100

O carcinoma verrucoso é uma variante do carcinoma de células escamosas, vista em mucosas e pele, raramente encontrada na mão. Nós relatamos um caso de duas lesões no dorso da mão, sem contato entre si, que foram ressecadas em bloco e confirmadas como carcinoma verrucoso.Verrucous carcinoma is a variant of squamous cell carcinoma seen in mucous membranes and skin, and rarely found in the hand. The present report describes a case of two lesions on the dorsum of the hand, with no contact to each other, which underwent en-block resection and were confirmed as verrucous carcinoma. (Source: Radiologia Brasileira)

Anatomical variations of paranasal sinuses at multislice computed tomography: what to look for

Radiologia Brasileira — Tue, 13 Sep 2011 10:49:08 +0100

A tomografia computadorizada multislice é, atualmente, a modalidade de imagem de escolha para a avaliação dos seios paranasais e das estruturas adjacentes. Ela tem sido cada vez mais utilizada para a avaliação das variações anatômicas, identificando-as de forma precisa e com elevados detalhes anatômicos. Algumas variações anatômicas podem predispor a sinusopatias e constituir regiões de alto risco para lesões e complicações durante atos operatórios. Portanto, o reconhecimento dessas variações é de fundamental importância no pré-operatório de cirurgia endoscópica.Multislice computed tomography is currently the imaging modality of choice for evaluating paranasal sinuses and adjacent structures. Such a method has been increasingly utilized in the assessment of anatomic...

Radiological propedeutics of femoroacetabular impingement in times of computed tomography and magnetic resonance imaging: what a radiologist needs to know

Radiologia Brasileira — Tue, 13 Sep 2011 10:49:08 +0100

Após breve descrição dos tipos de impacto femoroacetabular, este trabalho demonstra o protocolo de radiologia convencional, tomografia computadorizada e ressonância magnética para os casos de impacto, desenvolvido nos últimos oito anos em parceria com serviços de referência em ortopedia. Demonstra-se a propedêutica radiológica básica de cada método, revisando os aspectos mais relevantes na avaliação do quadril.Following a brief description of the types of femoroacetabular impingement, the present article describes the protocol of conventional radiology, computed tomography e magnetic resonance imaging for cases of impingement, developed over the last eight years in a partnership with reference orthopedic institutions. Basic radiological propedeutics is described for each of t...

Evaluation of medical X-ray machines in Paraíba state radiology centers between 2008 and 2009

Radiologia Brasileira — Tue, 13 Sep 2011 10:49:08 +0100

CONCLUSION: The percentage of problematic X-ray machines decreased between 2008 and 2009, notwithstanding no quality assurance program has been observed in Paraíba state radiology centers. (Source: Radiologia Brasileira)

The Brazilian profile of intellectual property in radiology and imaging diagnosis in an international context in the years 2000 to 2009

Radiologia Brasileira — Tue, 13 Sep 2011 10:49:08 +0100

CONCLUSION: The results indicate the weakness of the domestic production of patented technological innovation in the field of radiology and imaging diagnosis. (Source: Radiologia Brasileira)

Digitalization of X-ray films with image stitching

Radiologia Brasileira — Tue, 13 Sep 2011 10:49:08 +0100

CONCLUSION: The proposed digitization method with an A4 scanner allows reproducibility, excellent image quality and high degree of certainty in the identification of lesions. (Source: Radiologia Brasileira)

High-resolution computed tomography findings in pulmonary Langerhans cell histiocytosis

Radiologia Brasileira — Tue, 13 Sep 2011 10:49:08 +0100

CONCLUSION: Comparative analysis of high-resolution computed tomography and chest radiography findings demonstrated that thin-walled cysts and small nodules cannot be satisfactorily evaluated by conventional radiography. Because of its capacity to detect and characterize lung cysts and nodules, high-resolution computed tomography increases the probability of diagnosing pulmonary Langerhans cell histiocytosis. (Source: Radiologia Brasileira)

Tomographic and pathological findings in pulmonary sarcoidosis

Radiologia Brasileira — Tue, 13 Sep 2011 10:49:08 +0100

CONCLUSION: In general, all the mentioned findings demonstrated anatomopathological correlation with development of granulomas in these regions. (Source: Radiologia Brasileira)

Tomographic and pathological findings of crazy-paving pattern

Radiologia Brasileira — Tue, 13 Sep 2011 10:49:08 +0100

CONCLUSION: The crazy-paving pattern offers a wide range of differential diagnoses and must be evaluated in conjunction with clinical findings. (Source: Radiologia Brasileira)

Sensitivity of upper gastrointestinal series in the diagnosis of gastroesophageal reflux in premature infants

Radiologia Brasileira — Tue, 13 Sep 2011 10:49:08 +0100

CONCLUSION: Upper gastrointestinal series has demonstrated low sensitivity in the diagnosis of GERD in preterm newborns and was not associated with the reflux severity as compared with pH monitoring. However, it is useful in the detection of anatomical abnormalities in the upper gastrointestinal tract. (Source: Radiologia Brasileira)

Contribution of PSA density in the prediction of prostate cancer in patients with PSA values between 2.6 and 10.0 ng/ml

Radiologia Brasileira — Tue, 13 Sep 2011 10:49:08 +0100

CONCLUSION: The systematic use of PSA density as an indicator to proceed with the investigation of a patient with biopsy could substantially reduce the amount of unnecessary procedures. (Source: Radiologia Brasileira)

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Radiologia Brasileira — Tue, 13 Sep 2011 10:49:08 +0100

(Source: Radiologia Brasileira)

Chronic cerebrospinal venous insufficiency and multiple sclerosis

Radiologia Brasileira — Tue, 13 Sep 2011 10:49:08 +0100

(Source: Radiologia Brasileira)

Mounier-Kuhn syndrome: radiological findings and clinical presentation

Radiologia Brasileira — Sun, 17 Jul 2011 14:03:09 +0100

A síndrome de Mounier-Kuhn é uma doença rara, caracterizada clinicamente por infecções respiratórias de repetição. Apresentamos um relato de caso desta doença com análise da radiografia e da tomografia computadorizada de alta resolução do tórax que mostram como principais alterações aumento do calibre da traqueia, brônquios principais e bronquiectasias centrais. Estas alterações, associadas às informações clínicas, sugerem o diagnóstico.Mounier-Kuhn syndrome is a rare disease clinically characterized by recurrent respiratory infections. The present report describes a case of this disease with analysis of chest radiography and high resolution computed tomography showing increased caliber of the trachea, main bronchi and central bronchiectasis. Such changes, in associa...

Posteromedial snapping knee related to the sartorius muscle

Radiologia Brasileira — Sun, 17 Jul 2011 14:03:09 +0100

As causas da síndrome de ressalto no joelho relatadas com maior frequência são relacionadas a anormalidades meniscais, ao tendão do músculo bíceps femoral e aos tendões grácil e semitendíneo. Neste trabalho é descrito um caso de ressalto no canto posteromedial relacionado à junção miotendínea do músculo sartório em um paciente do sexo masculino, de 58 anos de idade, com hiperextensão do joelho.The most frequently reported causes of snapping knee syndrome are related to abnormalities of the meniscus, biceps femoris tendon, gracilis and semitendinosus tendons. The present report describes a case of snapping in the posterior-medial corner of the knee related to the myotendinous junction of the sartorius muscle in a 58-year-old male patient with knee hyperextension. (Source: R...

Mayer-Rokitansky-Kuster-Hauser syndrome: a case report and literature review

Radiologia Brasileira — Sun, 17 Jul 2011 14:03:09 +0100

Os autores descrevem o caso de uma paciente jovem com amenorreia primária e caracteres sexuais secundários normais. A investigação diagnóstica constatou a ocorrência da síndrome de Mayer-Rokitansky-Kuster-Hauser.The authors describe the case of a young female patient with primary amenorrhea and normal secondary sexual characteristics. The diagnostic investigation demonstrated the occurrence of Mayer-Rokitansky-Kuster-Hauser's syndrome. (Source: Radiologia Brasileira)

Barium follow through in the assessment and follow-up of adult patients with short bowel syndrome

Radiologia Brasileira — Sun, 17 Jul 2011 14:03:09 +0100

A síndrome do intestino curto é definida pela incapacidade da superfície do intestino delgado em manter as condições adequadas de absorção de nutrientes, ocasionando deficiências nutricionais. Em adultos, as principais causas de síndrome do intestino curto são as ressecções cirúrgicas amplas ou múltiplas, secundárias a infarto mesentérico, doença de Crohn e enterite actínica. Além de avaliar o tempo de trânsito até o intestino grosso, o exame contrastado de trânsito intestinal pode ser utilizado na medição da extensão do intestino remanescente e no acompanhamento dos fenômenos de adaptação estrutural das alças delgadas e colônicas. Em pacientes com síndrome do intestino curto, a adaptação estrutural do intestino delgado consiste na hiperplasia das vilosidad...

Civil liability of the radiologist in the diagnosis of breast cancer through mammography

Radiologia Brasileira — Sun, 17 Jul 2011 14:03:09 +0100

O objetivo deste trabalho foi analisar a responsabilidade civil por erro médico no que tange, especificamente, à conduta do radiologista no diagnóstico do câncer através do exame mamográfico. Foram analisadas, para exemplificar, decisões judiciais com o objetivo de mostrar o entendimento dos tribunais nacionais, dentre eles, o Supremo Tribunal Federal, a quem compete revisar, em grau de recurso, as decisões judiciais que afrontam a Constituição Federal, bem como o Superior Tribunal de Justiça, que tem a competência de julgar em grau de recurso as decisões violadoras das leis federais. O material utilizado demonstra a visão dos tribunais acerca do tema objeto desta pesquisa, revelando as consequências do erro do médico radiologista e dos serviços de radiologia no âmbito do...

Collaborative environment for nuclear medicine training

Radiologia Brasileira — Sun, 17 Jul 2011 14:03:09 +0100

CONCLUSION: The collaborative environment will allow the exchange of experiences and case discussions among professionals from institutions located in different regions all over the country, enhancing the collaboration among them. Thus, the environment can contribute in the early and continued education of nuclear medicine professionals. (Source: Radiologia Brasileira)

Evaluation of diverse methods for measuring compression force in three different mammographic systems

Radiologia Brasileira — Sun, 17 Jul 2011 14:03:09 +0100

CONCLUSION: Differences were observed among compression systems and among proposed methods. Thus the choice of the way the compression test is performed is critical for the acceptance of the mammography equipment, the technical lead being the most competent to define the most appropriate and realistic testing method. It is suggested that the compression force measurement should be performed with an extension dynamometer, rather than with a compression dynamometer, in cases where the mammography compression system functioning is not known. (Source: Radiologia Brasileira)

Ultrasound-guided foam sclerotherapy in the treatment of chronic venous insufficiency

Radiologia Brasileira — Sun, 17 Jul 2011 14:03:09 +0100

CONCLUSION: Ultrasound-guided sclerotherapy has demonstrated to be a safe and effective procedure for the management of chronic venous insufficiency in this group of patients. The incidence of complications was minimal and most of the patients reported satisfaction with the results of the treatment. (Source: Radiologia Brasileira)

Repercussions of previous cesarean uterine scar at uterine arteries Doppler velocimetry between the 26th and 32nd gestational weeks

Radiologia Brasileira — Sun, 17 Jul 2011 14:03:09 +0100

CONCLUSION: No repercussion of previous cesarean scar was observed at uterine arteries Doppler velocimetry performed in the period between the 26th and 32nd gestational weeks. (Source: Radiologia Brasileira)

Comparison between transvaginal ultrasonography and sonohysterography in the assessment of patients with abnormal uterine bleeding

Radiologia Brasileira — Sun, 17 Jul 2011 14:03:09 +0100

CONCLUSION: SHG and TVUS present a good predictive value for endometrial diseases in patients with abnormal uterine bleeding. SHG and TVUS present similar sensitivity and specificity in the detection of such diseases, but SHG is more sensitive in the detection of polyps. (Source: Radiologia Brasileira)

Transfusional iron overload in patients with sickle cell anemia: comparison between magnetic resonance imaging and serum ferritin

Radiologia Brasileira — Sun, 17 Jul 2011 14:03:09 +0100

CONCLUSION: Magnetic resonance imaging is an efficient tool for evaluating liver iron overload in patients with sickle cell anemia. (Source: Radiologia Brasileira)

Contrast enhancement of liver lesions in cirrhotic patients: a single institution crossover comparative study of two MR contrast agents. Preliminary results

Radiologia Brasileira — Sun, 17 Jul 2011 14:03:09 +0100

CONCLUSION: At equivalent full doses, Gd-BOPTA compared similarly with Gd-DTPA in the detection and characterization of focal hepatic lesions in patients with chronic liver disease. However, Gd-BOPTA was superior for increased lesion enhancement and subjective preference of the reader. (Source: Radiologia Brasileira)

Contribution of ultrasonography to the diagnosis of chronic hepatitis C histopathological changes, with emphasis on hepatic steatosis: Part I

Radiologia Brasileira — Sun, 17 Jul 2011 14:03:09 +0100

CONCLUSION: The results of the present study demonstrate that, in patients with chronic hepatitis C, ultrasonography has limitations in the characterization of histopathological changes, with an intermediate rate of agreement with the diagnosis of hepatic steatosis. Considering the specificity of 77.9% and the negative predictive value of 95.5%, the authors highlight the capacity of the method to demonstrate the probability of absence of hepatic steatosis. (Source: Radiologia Brasileira)

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Radiologia Brasileira — Sun, 17 Jul 2011 14:03:09 +0100

(Source: Radiologia Brasileira)

What is blog? How to do it? And Why?

Radiologia Brasileira — Sun, 17 Jul 2011 14:03:09 +0100

(Source: Radiologia Brasileira)

Imaging in oncology at CBR

Radiologia Brasileira — Sun, 17 Jul 2011 14:03:09 +0100

(Source: Radiologia Brasileira)

Errata

Radiologia Brasileira — Fri, 27 May 2011 17:34:52 +0100

Diverticulite jejunal é doença rara que acomete principalmente os idosos. Os sintomas e sinais clínicos são inespecíficos, fato que dificulta e retarda o diagnóstico. A tomografia computadorizada é muito valiosa na definição do diagnóstico. Neste relato será apresentado um caso de diverticulose jejunal complicada com diverticulite aguda perfurada bloqueada, assim como uma discussão breve sobre diverticulite jejunal e suas complicações.Jejunal diverticulitis is a rare disease that primarily affects the elderly. Clinical signs and symptoms are nonspecific, a fact that complicates and delays the diagnosis. Computed tomography is very valuable in defining the diagnosis. The present report describes a case of jejunal diverticulosis complicated with acute perforated obstructive div...

Jejunal diverticulitis: a case report

Radiologia Brasileira — Fri, 27 May 2011 17:34:52 +0100

Signs in neuroradiology: part 2

Radiologia Brasileira — Fri, 27 May 2011 17:34:52 +0100

O uso de sinais na interpretação de imagens na neurorradiologia é extremamente útil. Muitos sinais são bastante específicos e em alguns casos, patognomônicos. Nesta segunda parte os autores descreverão 15 sinais neurorradiológicos adicionais. Serão novamente abordadas as principais características de imagem de cada um e sua importância na prática clínica.The use of signs for interpretation of images in neuroradiology is extremely useful. Some signs are quite specific and, in some cases, pathognomonic. In this second part of their essay, the authors describe 15 additional neuroradiological signs. Main characteristics of imaging findings will be approached and the significance of their role in the clinical practice will be discussed. (Source: Radiologia Brasileira)

Signs in neuroradiology: part 1

Radiologia Brasileira — Fri, 27 May 2011 17:34:52 +0100

O uso de sinais ou analogias na interpretação de imagens na radiologia médica é prática comum e antiga entre os radiologistas. Comparação entre achados de imagem com animais, alimentos ou objetos se faz de modo natural. Muitos sinais são bastante específicos e em alguns casos patognomônicos. Independentemente do grau de especificidade, sinais auxiliam a prática radiológica. Vários sinais já foram descritos em neurorradiologia. Neste artigo os autores demonstrarão 15 sinais neurorradiológicos. Serão abordados as principais características de cada um, a sua importância na prática clínica e os seus achados de imagem.The use of signs or analogies for interpretation and description of medical images is an old and common practice among radiologists. Comparison of findings wi...

Magnetic resonance imaging in the assessment of meniscal anatomic variants and of the perimeniscal ligamentous anatomy: potential interpretation pitfalls

Radiologia Brasileira — Fri, 27 May 2011 17:34:52 +0100

O conhecimento adequado das variações anatômicas meniscais e das estruturas perimeniscais é essencial para uma avaliação adequada dos exames de ressonância magnética do joelho, tanto no diagnóstico das lesões meniscais quanto para se evitar uma série de possíveis erros diagnósticos. Este artigo revê variações anatômicas que alteram o tamanho, a forma e a estabilidade meniscais e que incluem os vários tipos de menisco discoide, outras variações morfológicas meniscais menos frequentes e o ossículo meniscal. Também é revisada a anatomia de estruturas perimeniscais, principalmente ligamentares, que incluem os ligamentos meniscocapsulares, intermeniscais, meniscofemorais e extensões meniscoligamentares.The knowledge of meniscal anatomic variants and of the normal perime...

Stochastic method-based computational system for neutron/photon dosimetry applied to radiotherapy and radiology

Radiologia Brasileira — Fri, 27 May 2011 17:34:52 +0100

CONCLUSION: The SISCODES provides a fast method to create personalized voxel models of any patient which can be used in stochastic simulations. The combination of the MCNP simulation with a personalized model of the patient increases the dosimetry accuracy in radiotherapy. (Source: Radiologia Brasileira)

Acceptability of a future phantoms bank for quality control in nuclear medicine

Radiologia Brasileira — Fri, 27 May 2011 17:34:52 +0100

CONCLUSION: The present study demonstrated the motivation for a shared use of a future phantoms bank. (Source: Radiologia Brasileira)

Utilization of radiation protection gear for absorbed dose reduction: an integrative literature review

Radiologia Brasileira — Fri, 27 May 2011 17:34:52 +0100

CONCLUSION: According to findings of several previous pieces of research, the use of radiation protection gear is a low-cost and effective way to reduce absorbed dose both for patients and occupationally exposed individuals. Thus, its use is necessary for the implementation of effective radioprotection programs in radiodiagnosis centers. (Source: Radiologia Brasileira)

Radiation dosimetry in patients and physicians during percutaneous coronary angioplasty in Recife, Pernambuco, Brazil

Radiologia Brasileira — Fri, 27 May 2011 17:34:52 +0100

CONCLUSION: The obtained results indicate the necessity of adopting strategies for optimizing the radiological protection for both patients and physicians. (Source: Radiologia Brasileira)

Level of evidence and grade of recommendation of articles on the diagnostic accuracy of ultrasonography in carpal tunnel syndrome

Radiologia Brasileira — Fri, 27 May 2011 17:34:52 +0100

CONCLUSION: The sonographic evaluation of patients with clinical suspicion of carpal tunnel syndrome can be cost-effectively performed as a first-line test, reducing the need for electrodiagnostic testing in these patients. (Source: Radiologia Brasileira)

The relevance of psychological support to medical resident and specializing in radiology and imaging diagnosis

Radiologia Brasileira — Fri, 27 May 2011 17:34:52 +0100

CONCLUSION: The implementation of a service to provide psychological support to residents and trainees in radiology and imaging diagnosis should be done by psychologists specialized in hospital and clinical psychology, skilled to welcome and assist them to deal with difficulties in the training, as well as in their adaptation and integration, thus contributing to reduce stress and symptoms of anxiety and depression. (Source: Radiologia Brasileira)

Computed tomography-guided core-needle biopsy of lung lesions: an oncology center experience

Radiologia Brasileira — Fri, 27 May 2011 17:34:52 +0100

CONCLUSION: Computed tomography-guided coreneedle biopsy of lung lesions demonstrated high rates of material appropriateness and diagnostic specificity, and low rates of complications in the present study. (Source: Radiologia Brasileira)

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Radiologia Brasileira — Fri, 27 May 2011 17:34:52 +0100

(Source: Radiologia Brasileira)

The role of chronic cerebrospinal insufficiency in multiple sclerosis

Radiologia Brasileira — Fri, 27 May 2011 17:34:52 +0100

(Source: Radiologia Brasileira)

Computed tomography in traumatic brain injury

Radiologia Brasileira — Fri, 27 May 2011 17:34:52 +0100

(Source: Radiologia Brasileira)

The challenging indexation of Radiologia Brasileira: are we able to collaborate in this process?

Radiologia Brasileira — Fri, 27 May 2011 17:34:52 +0100

(Source: Radiologia Brasileira)

Newborn with urinary ascites and renal calyx rupture secondary to posterior urethral valve: sonographic diagnosis

Radiologia Brasileira — Tue, 22 Mar 2011 22:06:45 +0100

A literatura relata somente alguns casos de recém-nascidos com ascite urinária, geralmente secundária a ruptura de bexiga urinária e não de um cálice renal. Este relato de caso descreve um caso raro de ascite urinária em recém-nascido com válvula de uretra posterior que teve ruptura de um cálice renal, neste caso diagnosticada, até onde sabemos, pela primeira vez por ultrassonografia.The literature reports only rare cases of urinary ascites, usually secondary to rupture of the bladder and not to renal calyx rupture. The present report describes an uncommon case of posterior urethral valve in a newborn with ascites caused by the rupture of a renal calyx that, to our knowledge, was diagnosed for the first time by ultrasonography. (Source: Radiologia Brasileira)

Ultrasonography of adnexal masses: imaging findings

Radiologia Brasileira — Tue, 22 Mar 2011 22:06:45 +0100

A ultrassonografia realizada por um habilidoso e experiente examinador é considerada, atualmente, método de elevada acurácia no diagnóstico diferencial das massas anexiais. Os autores expõem uma revisão baseada em imagens ultrassonográficas das principais apresentações das massas anexiais, descrevendo suas características e localizações.Transabdominal and transvaginal ultrasonography performed by a skilled and experienced investigator is currently considered as a highly accurate method in the differential diagnosis of adnexal masses. The authors set out a review based on sonographic images demonstrating the main presentations of adnexal masses, describing their characteristics and locations. (Source: Radiologia Brasileira)

Imaging findings of musculoskeletal disorders associated with systemic lupus erythematosus

Radiologia Brasileira — Tue, 22 Mar 2011 22:06:45 +0100

O lúpus eritematoso sistêmico é uma doença autoimune que envolve múltiplos sistemas orgânicos. O acometimento musculoesquelético é uma das manifestações mais comuns da doença, com envolvimento ósseo, articular, muscular, tendíneo e ligamentar, tanto primário como relacionado ao tratamento instituído. Neste artigo revisamos e ilustramos as alterações articulares e complicações musculoesqueléticas mais comuns relacionadas a esta doença.Systemic lupus erythematosus is an autoimmune disease involving multiple organ systems. Musculoskeletal involvement is one of the most frequent presentations of the disease, affecting bones, joints, muscles, tendons and ligaments, either as a primary manifestation or secondary to the treatment of the disease. In the present article, the au...

Evaluation of costs for quality control of [99mTc]technetium radiopharmaceuticals in Brazilian nuclear medicine centers

Radiologia Brasileira — Tue, 22 Mar 2011 22:06:45 +0100

CONCLUSION: Considering the gains in quality and patients' safety, the authors conclude that costs for implementing a quality control program for radiopharmaceuticals can be absorbed in the financial planning of nuclear medicine centers. (Source: Radiologia Brasileira)

Impact of enteral nutrition on acute toxicity and treatment continuity in head and neck cancer patients submitted to intensity-modulated radiotherapy

Radiologia Brasileira — Tue, 22 Mar 2011 22:06:45 +0100

CONCLUSION: Enteral nutrition is of a great value in the body weight maintenance, but no benefit was observed with the performance of endoscopic percutaneous gastrostomy as compared with radiotherapy interruption/replanning. (Source: Radiologia Brasileira)

Correlation between the Glasgow Coma Scale and computed tomography imaging findings in patients with traumatic brain injury

Radiologia Brasileira — Tue, 22 Mar 2011 22:06:45 +0100

CONCLUSION: Statistical significance was observed in the correlation between the Glasgow Coma Scale, age > 50 years (p < 0.0001), need for tracheal intubation (p < 0.0001) and CT findings. (Source: Radiologia Brasileira)

Whole-body magnetic resonance imaging for staging and follow-up of pediatric patients with Hodgkin's lymphoma: comparison of different sequences

Radiologia Brasileira — Tue, 22 Mar 2011 22:06:45 +0100

CONCLUSION: STIR and DWIBS sequences detected the highest number of lymph node sites characterized as affected by the disease. Similar results were demonstrated by all the sequences in the evaluation of parenchymal organs and bone marrow. A high interobserver agreement was observed as the four sequences were analyzed. (Source: Radiologia Brasileira)

Review of lung radiographic findings during treatment of patients with chronic paracoccidioidomycosis

Radiologia Brasileira — Tue, 22 Mar 2011 22:06:45 +0100

CONCLUSION: The adapted ILO classification demonstrated to be useful in the radiographic follow-up along treatment of patients with chronic paracoccidioidomycosis. (Source: Radiologia Brasileira)

Computed tomography findings of pulmonary tuberculosis in adult AIDS patients

Radiologia Brasileira — Tue, 22 Mar 2011 22:06:45 +0100

CONCLUSION: Differently from reports in the literature, the authors conclude that mediastinal and/or hilar lymph node enlargement and consolidation were significantly most frequent in patients with CD4 count > 200 cel/mm³. However, lymph nodes with hypodense center were most often observed in severely immunosuppressed patients with CD4 count < 200 cel/mm³. (Source: Radiologia Brasileira)

Correlation between frontal cortical thickness and executive functions performance in patients with human immunodeficiency virus infection

Radiologia Brasileira — Tue, 22 Mar 2011 22:06:45 +0100

CONCLUSION: Correlations between cortical thickness measurements by magnetic resonance imaging and cognitive performance suggest that the executive function deficit in HIV-positive patients are related to a reduction in the thickness of the frontal cortex. (Source: Radiologia Brasileira)

Hepatic vein Doppler flowmetry in patients with nonalcoholic steatosis

Radiologia Brasileira — Tue, 22 Mar 2011 22:06:45 +0100

CONCLUSION: An abnormal Doppler waveform pattern of right hepatic vein in patients with nonalcoholic fatty liver disease may suggest the presence of decreased vascular compliance caused by fatty infiltration. (Source: Radiologia Brasileira)

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Radiologia Brasileira — Tue, 22 Mar 2011 22:06:45 +0100

(Source: Radiologia Brasileira)

Novelties in radiology: arterial spin labeling, the gadolinium-free MR perfusion

Radiologia Brasileira — Tue, 22 Mar 2011 22:06:45 +0100

(Source: Radiologia Brasileira)

Whole-body magnetic resonance imaging in the assessment of pediatric patients with Hodgkin's lymphoma

Radiologia Brasileira — Tue, 22 Mar 2011 22:06:45 +0100

(Source: Radiologia Brasileira)

Doppler flowmetry in hepatic steatosis

Radiologia Brasileira — Tue, 22 Mar 2011 22:06:45 +0100

(Source: Radiologia Brasileira)

Von Meyenburg complex: case report and literature review

Radiologia Brasileira — Fri, 14 Jan 2011 20:31:22 +0100

Os hamartomas biliares, conhecidos como complexo de von Meyenburg, são lesões tipicamente benignas que podem mimetizar metástases aos exames de imagem. Neste estudo é relatado um caso de complexo de von Meyenburg e são discutidos o diagnóstico por imagem, a associação com doença policística do adulto, e o potencial maligno atualmente considerado e frequentemente ignorado deste achado, que torna necessário o acompanhamentoBiliary hamartomas, also known as von Meyenburg complex, are typically benign lesions that may mimic metastases at imaging studies. The present study reports a case of von Meyenburg complex and discusses the imaging diagnosis, the association with adult polycystic disease and the malignant potential of this finding currently considered and frequently ignored, wh...

Usefulness of ultrasonography in children with suspected dengue hemorrhagic fever: a literature review

Radiologia Brasileira — Fri, 14 Jan 2011 20:31:22 +0100

O dengue é doença endêmica em regiões tropicais e subtropicais. Quando sintomática, classifica-se em febre do dengue e febre hemorrágica do dengue, com tendência a síndrome do choque do dengue. A febre hemorrágica do dengue é marcada por manifestações hemorrágicas, trombocitopenia e aumento da permeabilidade capilar. A síndrome do choque do dengue apresenta os achados de febre hemorrágica do dengue com hipotensão. Muitos achados ultrassonográficos têm sido descritos, incluindo derrame pleural, ascite, espessamento da parede da vesícula biliar e derrame pericárdico. O objetivo desta revisão da literatura é descrever os achados ultrassonográficos e demonstrar o papel da ultrassonografia em crianças com suspeita de febre hemorrágica do dengueDengue virus infection is ...

Comparative study of computational dosimetry involving homogeneous phantoms and a voxel phantom in mammography: a discussion on applications in constancy tests and calculation of glandular dose in patients

Radiologia Brasileira — Fri, 14 Jan 2011 20:31:22 +0100

CONCLUSION: The phantom proposed by Dance is recommended for evaluating the glandular dose and normalized glandular dose in a standard breast. Homogeneous phantoms should be utilized for constancy tests in dosimetry, but they are not appropriate for estimating dosimetry in actual patients (Source: Radiologia Brasileira)

Brachial artery flow-mediated dilatation and intima-media thickness of carotid and brachial arteries: evaluation of individuals with and without risk factors for atherosclerosis

Radiologia Brasileira — Fri, 14 Jan 2011 20:31:22 +0100

CONCLUSION: Measurement of BAFMD was effective for detecting endothelial impairment in a population with risk factors for atherosclerosis (Source: Radiologia Brasileira)

Hepatic subcapsular hemangioma with perilesional enhancement: MRI features

Radiologia Brasileira — Fri, 14 Jan 2011 20:31:22 +0100

CONCLUSION: All hepatic hemangiomas with perilesional enhancement were < 2 cm capsule-based lesions. This location suggests that these hemangiomas may conscript capsular vessels to account for the perilesional enhancement (Source: Radiologia Brasileira)

Endovaginal sonographic assessment of cervical length in healthy pregnant women between 20 and 34 gestational weeks

Radiologia Brasileira — Fri, 14 Jan 2011 20:31:22 +0100

CONCLUSION: The mean cervical length decreases about 0.8 mm per week in the period between the 20th and 34th gestational weeks (Source: Radiologia Brasileira)

Reliability of qualitative assessment of brain magnetic resonance imaging in extremely premature infants

Radiologia Brasileira — Fri, 14 Jan 2011 20:31:22 +0100

CONCLUSION: Conventional MRI seems to be a reliable method for evaluating the most common brain abnormalities in extremely premature infants; however, the presence of DEHSI in the white matter demonstrated to be is a less reliable finding (Source: Radiologia Brasileira)

Analysis of three-dimensional power Doppler sonography reproducibility in the assessment of fetal brain circulation

Radiologia Brasileira — Fri, 14 Jan 2011 20:31:22 +0100

CONCLUSION: 3D power Doppler has shown to be a practical and easy method in the assessment of fetal brain blood flow, with good intra- and interobserver reproducibility. The FI presented the best intra- and interobserver agreement (Source: Radiologia Brasileira)

Use of diffusion tensor magnetic resonance imaging in the assessment of patterns of white matter involvement in patients with brain tumors: is it useful in the differential diagnosis?

Radiologia Brasileira — Fri, 14 Jan 2011 20:31:22 +0100

CONCLUSION: Diffusion tensor imaging patterns of white matter involvement assists in the mapping of tracts adjacent to tumors, providing significant data about tumors extent; however, they cannot distinguish low-grade and high-grade gliomas from metastases (Source: Radiologia Brasileira)

Evaluation of portal blood flow in schistosomal patients: a comparative study between magnetic resonance imaging and Doppler ultrasonography

Radiologia Brasileira — Fri, 14 Jan 2011 20:31:22 +0100

CONCLUSION: There is a poor intermethod agreement in the measurement of portal blood flow. Nevertheless, contrast-phase magnetic resonance imaging and Doppler ultrasonography demonstrated to be reproducible methods presenting excellent interobserver agreement in the quantification of portal blood flow in patients with hepatosplenic schistosomiasis-related portal hypertension (Source: Radiologia Brasileira)

Multidetector-row computed tomography angiography for the diagnosis of anomalous pulmonary venous drainage: an initial experiment

Radiologia Brasileira — Fri, 14 Jan 2011 20:31:22 +0100

CONCLUSION: Multidetector-row computed tomography angiography can be useful for diagnosing the described anomalies because of its non-invasiveness, and its ability to evaluate intra- and extra-cardiac structures. The technique allows a thorough study of the thoracic anatomy and contributes to surgical conduct, consequently improving patient prognosis, in particular by allowing the diagnosis of clinically unsuspected malformations (Source: Radiologia Brasileira)

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Radiologia Brasileira — Fri, 14 Jan 2011 20:31:22 +0100

(Source: Radiologia Brasileira)

Portal vein imaging and flow: comparing Doppler sonography and MRI

Radiologia Brasileira — Fri, 14 Jan 2011 20:31:22 +0100

(Source: Radiologia Brasileira)

Editorial commentary in Radiologia Brasileira: multidetector-row computed tomography angiography for the diagnosis of anomalous pulmonary venous drainage: an initial experiment

Radiologia Brasileira — Fri, 14 Jan 2011 20:31:22 +0100

(Source: Radiologia Brasileira)

Paget's disease with sacral involvement: a case report

Radiologia Brasileira — Fri, 10 Dec 2010 22:03:54 +0100

Os autores relatam o caso de um paciente do sexo masculino, 71 anos de idade, com diagnóstico de doença de Paget óssea sacral. Foi realizado estudo com radiografia, cintilografia, tomografia computadorizada e ressonância magnética, e o diagnóstico foi confirmado por análise histopatológica. O paciente evoluiu com boa resposta ao uso de ibandronato 150 mg, mensalmente, com redução significativa dos marcadores bioquímicos da doença.The authors report a case of a 71-year-old male patient diagnosed with Paget's disease of sacrum. Imaging study was performed with radiography, scintigraphy, computed tomography and magnetic resonance imaging, and the diagnosis was confirmed by biopsy. The patient progressed with a good response to monthly treatment with ibandronate 150 mg, presenting ...

Morel-Lavallée lesion in the knee: a case report

Radiologia Brasileira — Fri, 10 Dec 2010 22:03:54 +0100

A lesão de Morel-Lavallée é uma lesão em cisalhamento que ocorre entre o tecido celular subcutâneo e a fáscia profunda. Caracteriza-se pela formação de uma coleção que, originalmente descrita na coxa, vem sendo observada em outros locais. Os autores relatam o caso de paciente com Morel-Lavallée no joelho e descrevem as principais características desta lesão.Morel-Lavallée lesion is a degloving injury of the interface between the subcutaneous fat and the underlying fascia. This lesion is characterized by the development of a fluid collection that, although originally described in the thigh, it has also been described in other anatomical sites. The authors report the case of a patient with Morel-Lavallée lesion in the knee after trauma and describe the main characteristics of ...

Magnetic resonance imaging evaluation of perianal fistulas: iconographic essay

Radiologia Brasileira — Fri, 10 Dec 2010 22:03:54 +0100

A fístula perianal é uma condição incomum com tendência a recorrência, que usualmente é decorrente de infecção prévia não observada à cirurgia. A ressonância magnética mostra com acurácia a anatomia da região e a relação da fístula com o diafragma pélvico e a fossa isquiorretal, classificando-a em cinco tipos. A ressonância magnética é superior a qualquer outra modalidade para a detecção de focos infecciosos na região perianal, incluindo a exploração cirúrgica. Tem a capacidade de guiar o procedimento cirúrgico, reduzindo a taxa de recorrência em 75% em pacientes com doença complexa.Fistula in ano is an uncommon condition that has a tendency to recur despite seemingly appropriate surgery. Recurrent fistula in ano is usually caused by infection that was misse...

Peculiarities of radiotherapy in the elderly

Radiologia Brasileira — Fri, 10 Dec 2010 22:03:54 +0100

É sabido que o envelhecimento da população do mundo durante o século XX e no início deste novo século constitui um desafio de primeira ordem para as nações, especialmente no campo socioeconômico. Um aspecto importante do envelhecimento populacional global é que, para grupos de idade mais avançada, a prevalência das doenças degenerativas também é maior, incluindo as doenças malignas. No universo de pacientes portadores de câncer, por outro lado, metade destes receberá radioterapia em algum momento de sua doença e suas características individuais podem influenciar, de alguma forma, o prognóstico, a indicação e as doses diárias de prescrição dos tratamentos. Neste contexto, a assistência à saúde do idoso portador de câncer deve ser vista como um importante desafi...

Impact of health surveillance actions on the program of quality control in mammography in the Paraíba State, Brazil, from 1999 to 2003

Radiologia Brasileira — Fri, 10 Dec 2010 22:03:54 +0100

CONCLUSION: The obtained results demonstrate a significant progress in the quality of diagnostic images produced by the mammography services after the implementation of images quality control programs. (Source: Radiologia Brasileira)

Freeware medical image viewers: can we rely only on them?

Radiologia Brasileira — Fri, 10 Dec 2010 22:03:54 +0100

CONCLUSION: Although several freeware applications are available, no one of them is complete. It is up to the users to analyze and select the software that best suits their needs. However, Onis, Synedra and ClearCanvas stand out because of their own peculiarities. The use of freeware image viewers is entirely feasible in the radiologists' daily routine. (Source: Radiologia Brasileira)

Adjuvant radiotherapy in high-grade extremity sarcomas

Radiologia Brasileira — Fri, 10 Dec 2010 22:03:54 +0100

CONCLUSION: Combined surgery and radiotherapy is an effective treatment with excellent outcomes in cases where brachytherapy is associated, with improved overall survival rates. (Source: Radiologia Brasileira)

CT enterography: a preliminary experience in the evaluation of small bowel diseases

Radiologia Brasileira — Fri, 10 Dec 2010 22:03:54 +0100

CONCLUSION: CT enterography is a simple and effective method in the evaluation of inflammatory/neoplastic small bowel diseases, particularly in cases of Crohn's disease, indicating disease activity. One of the main advantages of this method is the possibility of evaluating associated mesenteric and extraintestinal alterations. (Source: Radiologia Brasileira)

Analysis of the Breast Cancer Control Program Information System (SISMAMA), with review of 1,000 mammograms in the cities of Barra Mansa and Volta Redonda

Radiologia Brasileira — Fri, 10 Dec 2010 22:03:54 +0100

CONCLUSION: Despite the necessity of adjustments because of the time elapsed between the system creation and implementation, such adjustments do not affect directly the system's validity. Errors in data input in the Health Ministry database corresponded to the failure in the provision of information relevant for reports completion, and the lack of familiarity and capacity of professionals involved in this process and in the forwarding of data regarding mammography results. (Source: Radiologia Brasileira)

The value of diagnostic imaging in the classification of endoleaks as a complication of endoluminal grafting of aortic aneurysms

Radiologia Brasileira — Fri, 10 Dec 2010 22:03:54 +0100

CONCLUSION: Early diagnosis and correct classification of endoleaks are crucial for an appropriate management of cases. The knowledge of endoleaks subtypes is fundamental in the education of physicians specialized in radiology and imaging diagnosis as well as for vascular surgeons. (Source: Radiologia Brasileira)

Low-dose dobutamine myocardial perfusion scintigraphy in the identification of viable myocardium

Radiologia Brasileira — Fri, 10 Dec 2010 22:03:54 +0100

CONCLUSION: This method tends to present an effective contribution in the assessment of myocardial viability. (Source: Radiologia Brasileira)

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Radiologia Brasileira — Fri, 10 Dec 2010 22:03:54 +0100

(Source: Radiologia Brasileira)

Free software: an option for radiologists?

Radiologia Brasileira — Fri, 10 Dec 2010 22:03:54 +0100

(Source: Radiologia Brasileira)

Endovascular treatment: the role of the radiologist

Radiologia Brasileira — Fri, 10 Dec 2010 22:03:54 +0100

(Source: Radiologia Brasileira)

Evaluation of myocardial viability

Radiologia Brasileira — Fri, 10 Dec 2010 22:03:54 +0100

(Source: Radiologia Brasileira)

Madelung's disease: a case report and literature review

Radiologia Brasileira — Sat, 18 Sep 2010 08:10:04 +0100

Relata-se o caso de um paciente portador da doença de Madelung, definida clinicamente pela presença de múltiplos acúmulos de tecido adiposo não encapsulados, usualmente envolvendo a região cervical e superior do tórax, de distribuição simétrica. O exame de imagem eleito para confirmação do diagnóstico foi tomografia computadorizada, por ser menos dispendiosa e mais acessível, comparando-se à ressonância magnética.The authors report the case of a patient with Madelung's disease, which is clinically described as the presence of multiple and symmetric non-encapsulated masses of fatty tissue, usually involving the neck and the upper region of the trunk. Computed tomography was selected as the imaging method for diagnosis confirmation, considering its lower cost and higher avai...

Primary acalvaria: a case report

Radiologia Brasileira — Sat, 18 Sep 2010 08:10:04 +0100

Acalvaria é uma malformação congênita rara de patogênese desconhecida, na qual os ossos da abóbada craniana, a dura-máter e a musculatura associada estão ausentes, mas o sistema nervoso central costuma estar preservado. A teoria fisiopatogênica mais aceita sugere um defeito pós-neurulação, com disposição normal do ectoderma embrionário. O objetivo deste relato é descrever os achados de imagem neonatais da acalvaria primária.Acalvaria is a rare congenital malformation of unknown pathogenesis characterized by the absence of the flat bones of the cranial vault, dura mater and associated muscles, while the central nervous system is usually preserved. The most accepted physiopathogenic theory suggests the presence of a postneurulation defect with normal placement the embryonic ...

Magnetic resonance imaging in the evaluation of periosteal reactions

Radiologia Brasileira — Sat, 18 Sep 2010 08:10:04 +0100

The objective of the present essay was to encourage a careful evaluation of periosteal reactions on magnetic resonance images. The initial approach to bone lesions is made by conventional radiography and, based on the imaging findings, periosteal reactions are classified into classical subtypes. Although magnetic resonance imaging is considered as the gold standard for local staging of bone tumors, the utilization of such method in the study of periosteal reactions related to focal bone lesions has been poorly emphasized, with relatively few studies approaching this subject. The literature review revealed a study describing an experimental animal model of osteomyelitis suggesting that magnetic resonance imaging is superior to other imaging methods in the early identification of periosteal ...

Accuracy of measurement of pulmonary emphysema with computed tomography: relevant points

Radiologia Brasileira — Sat, 18 Sep 2010 08:10:04 +0100

Para garantir a confiabilidade dos dados de quantificação computadorizada do enfisema pulmonar (densitovolumetria pulmonar) na tomografia computadorizada, alguns aspectos técnicos devem ser considerados. A alteração das densidades na tomografia computadorizada com as mudanças no nível de inspiração e expiração do pulmão, com a espessura de corte da tomografia computadorizada, com o algoritmo de reconstrução e com o tipo de tomógrafo dificulta as comparações tomográficas nos estudos de acompanhamento do enfisema pulmonar. No entanto, a densitovolumetria pulmonar substituiu a avaliação visual e compete com as provas de função pulmonar como método para medir o enfisema pulmonar. Esta revisão discute as variáveis técnicas que alteram a aferição do enfisema na tomogr...

Recommendations on the use of 18F-FDG PET/CT in Oncology: consensus between the Brazilian Society of Cancerology and the Brazilian Society of Biology, Nuclear Medicine and Molecular Imaging

Radiologia Brasileira — Sat, 18 Sep 2010 08:10:04 +0100

Apresentamos uma lista de recomendações sobre a utilização de 18F-FDG PET em oncologia, no diagnóstico, estadiamento e detecção de recorrência ou progressão do câncer. Foi realizada pesquisa para identificar estudos controlados e revisões sistemáticas de literatura composta por estudos retrospectivos e prospectivos. As consequências e o impacto da 18F-FDG PET no manejo de pacientes oncológicos também foram avaliados. A 18F-FDG PET deve ser utilizada como ferramenta adicional aos métodos de imagem convencionais como tomografia computadorizada e ressonância magnética. Resultados positivos que sugiram alteração no manejo clínico devem ser confirmados por exame histopatológico. A 18F-FDG PET deve ser utilizada no manejo clínico apropriado para o diagnóstico de cânceres...

Spatial distribution analysis of absorbed dose in ocular proton radiation therapy

Radiologia Brasileira — Sat, 18 Sep 2010 08:10:04 +0100

CONCLUSION: The conclusion is that proton therapy when properly modulated and directed can reproduce the ideal conditions for the dose deposition in the treatment of ocular tumors. (Source: Radiologia Brasileira)

Radiation dose optimization in routine computed tomography: a study of feasibility in a University Hospital

Radiologia Brasileira — Sat, 18 Sep 2010 08:10:04 +0100

CONCLUSION: Radiation dose levels can be reduced by up to 34.4% in comparison with routine protocols, keeping the noise at acceptable levels. The use of digital manipulation tools allowed the acceptance of images with higher noise levels, thus resulting in radiation dose reduction. (Source: Radiologia Brasileira)

Accuracy in the reproducibility of daily patients' setup in 3D conformal radiotherapy for prostate cancer

Radiologia Brasileira — Sat, 18 Sep 2010 08:10:04 +0100

CONCLUSION: The use of specific protocols for patients' setup is feasible in the clinical practice, allowing appropriate reproducibility and quick correction of possible errors in conformal radiotherapy for prostate cancer. (Source: Radiologia Brasileira)

Comparative study between computed tomography and bronchoscopy in the diagnosis of lung cancer

Radiologia Brasileira — Sat, 18 Sep 2010 08:10:04 +0100

CONCLUSION: Bronchoscopy results corroborated the relevance of the method in the diagnosis of lung cancer, considering its dependence on the anatomopathological study of tissue or cells obtained through different biopsy techniques. Computed tomography presented good sensitivity (81.1%), however the specificity of only 63.6% is related to the rate of false-positive results (36.4%). (Source: Radiologia Brasileira)

Endovascular treatment of scalp cirsoid aneurysms

Radiologia Brasileira — Sat, 18 Sep 2010 08:10:04 +0100

CONCLUSION: The endovascular approach is safe and effective in the management of crisoid aneurysms. Although this technique can be used as an adjuvant or complement to surgery, particularly in cases where deep afferents are involved, complete resolution can be achieved only with endovascular treatment. The choice of treatment method should be based on a range of typical characteristics of the lesion, including angioarchitecture, size and clinical presentation. (Source: Radiologia Brasileira)

Reproducibility of fetal limbs volume by three-dimensional ultrasonography utilizing the XI VOCAL method

Radiologia Brasileira — Sat, 18 Sep 2010 08:10:04 +0100

CONCLUSION: Fetal thigh and upper arm volumes measured by three-dimensional ultrasonography with the XI VOCAL method presented a high interobserver reproducibility. (Source: Radiologia Brasileira)

Clinical application of transcranial Doppler ultrasonography in premature, very-low-birth-weight neonates

Radiologia Brasileira — Sat, 18 Sep 2010 08:10:04 +0100

CONCLUSION: There is a correlation between the presence of cerebral hemodynamic changes demonstrated by resistance index measurements and the subsequent development of hemorrhages and hypoxic-ischemic lesions. Although not being a death predictor, changes in the resistance index are associated with the severity of the clinical conditions in preterm, very-low-birth-weight neonates. (Source: Radiologia Brasileira)

Which is your diagnosis?

Radiologia Brasileira — Sat, 18 Sep 2010 08:10:04 +0100

(Source: Radiologia Brasileira)

Reproducibility of patient's setup in radiotherapy

Radiologia Brasileira — Sat, 18 Sep 2010 08:10:04 +0100

(Source: Radiologia Brasileira)

Tratamento endovascular de aneurismas infecciosos cerebrais

Radiologia Brasileira — Sat, 17 Jul 2010 06:44:46 +0100

Os styloideum é um ossículo acessório, imóvel, localizado dorsalmente no carpo, que representa uma variante anatômica. A associação entre os styloideum e dor no punho é conhecida clinicamente como "carpal boss syndrome". Os autores relatam um caso de os styloideum com edema ósseo trabecular no estudo por ressonância magnética em atleta jovem tenista, com revisão da literatura deste achado.Os styloideum is an accessory ossicle located dorsally on the wrist that represents an anatomic variant. Association between the os styloideum and wrist pain is clinically known as "carpal boss syndrome". The authors report a case of bone marrow edema in the os styloideum diagnosed by magnetic resonance imaging in a young tennis player, and present a literature review on this finding. (Source:...

Avaliação da função ventricular esquerda: comparação entre sequência de ressonância magnética com múltiplas apneias e sequência sem pausa respiratória e com número elevado de excitações

Radiologia Brasileira — Sat, 17 Jul 2010 06:44:46 +0100

Estudo comparativo da detecção de sinais em imagens adquiridas nos sistemas mamográficos digitais com detectores de iodeto de césio e de selênio amorfo

Radiologia Brasileira — Sat, 17 Jul 2010 06:44:46 +0100

Medida da filtração glomerular determinada por EDTA-51Cr antes e após a administração de captopril: avaliação de pacientes hipertensos com ou sem estenose de artéria renal

Radiologia Brasileira — Sat, 17 Jul 2010 06:44:46 +0100

Relação da gordura visceral abdominal e doença coronária avaliada pela tomografia computadorizada de múltiplos detectores

Radiologia Brasileira — Sat, 17 Jul 2010 06:44:46 +0100

Computed tomography and magnetic resonance imaging findings of os styloideum in a symptomatic athlete

Radiologia Brasileira — Sat, 17 Jul 2010 06:44:46 +0100

Importance of gallium-67 scintigraphy in primary cutaneous B-cell lymphoma: report of two cases

Radiologia Brasileira — Sat, 17 Jul 2010 06:44:46 +0100

Os autores relatam dois casos de linfoma cutâneo de células B, nos quais o correto estadiamento, tratamento e seguimento foram possíveis graças à combinação de exames convencionais e a cintilografia com gálio-67.The authors describe two cases of cutaneous B-cell lymphoma where correct staging, treatment and follow-up could be achieved through a combination of conventional imaging studies and gallium-67 scintigraphy. (Source: Radiologia Brasileira)

Brain 18F-FDG PET-MRI coregistration: iconographic essay

Radiologia Brasileira — Sat, 17 Jul 2010 06:44:46 +0100

A integração da tomografia por emissão de pósitrons (PET) com a ressonância magnética (RM) tem sido alvo de diversos estudos nos últimos anos. O PET é a modalidade de imagem mais sensível e específica na detecção de alterações metabólicas, entretanto, apresenta limitada resolução espacial. Por outro lado, a RM apresenta importante resolução espacial, além de avaliar estruturas com intensidade de sinal de partes moles com excelente contraste. O objetivo deste estudo é demonstrar, na forma de ensaio iconográfico, as potenciais aplicações clínicas da fusão de imagens de PET e RM. Os exames foram realizados em aparelho PET dedicado utilizando como radiofármaco a fluordeoxiglicose-18F (FDG) e corregistrados com RM de 1,5 T ou 3 T do encéfalo. A fusão por programa de...

Imaging findings and therapeutic alternatives for peripheral vascular malformations

Radiologia Brasileira — Sat, 17 Jul 2010 06:44:46 +0100

As malformações vasculares periféricas compreendem um espectro de lesões que se tornam aparentes no decorrer da vida e podem ser encontradas em praticamente todo o corpo. São pouco comuns e frequentemente confundidas com o hemangioma infantil. Estas doenças são completamente distintas tanto em relação à história clínica como ao prognóstico e às formas de tratamento. Nestas lesões, a história evolutiva e as características do exame físico são de extrema importância para o adequado diagnóstico clinicorradiológico, que guiará a melhor alternativa terapêutica. As classificações mais recentes dividem as malformações vasculares periféricas levando em consideração o fluxo sanguíneo (alto e baixo) e os componentes vasculares envolvidos (arteriais, capilares, linfát...

Evaluation of a second opinion system in radiology

Radiologia Brasileira — Sat, 17 Jul 2010 06:44:46 +0100

CONCLUSION: A process of second medical opinion by means of a web-based multispecialty system adapted for radiology has shown to be an excellent tool in the management of therapeutic approaches. (Source: Radiologia Brasileira)

Magnetic resonance imaging in the evaluation of standard radiotherapy field borders in patients with uterine cervix cancer

Radiologia Brasileira — Sat, 17 Jul 2010 06:44:46 +0100

CONCLUSION: The evaluation of standardized field borders with the use of magnetic resonance imaging has demonstrated high indices of inappropriateness of the lateral field borders, as well as the relevant role of magnetic resonance imaging in the radiotherapy planning for patients with uterine cervix cancer with a view to reduce the occurrence of geographic miss of the target volume. (Source: Radiologia Brasileira)

Positive predictive value of Breast Imaging Reporting and Data System (BI-RADS®) categories 3, 4 and 5

Radiologia Brasileira — Sat, 17 Jul 2010 06:44:46 +0100

CONCLUSION: Malignant findings were underestimated, and benign findings were overestimated by mammographic reports, thus resulting in some unnecessary invasive procedures. (Source: Radiologia Brasileira)

Type 1 neurofibromatosis: radiological findings of the chest

Radiologia Brasileira — Sat, 17 Jul 2010 06:44:46 +0100

CONCLUSION: The presence of posterior mediastinal masses in association with the typical bone changes defined by the National Institutes of Health is a consistent finding to be considered as a diagnostic criterion of the disease. (Source: Radiologia Brasileira)

Uterine arteries resistance and pulsatility indices at the first and second trimesters of normal pregnancies

Radiologia Brasileira — Sat, 17 Jul 2010 06:44:46 +0100

CONCLUSION: Reference values for uterine arteries RI and PI at the first and second trimesters of pregnancy were established. (Source: Radiologia Brasileira)

Fetal and placental Doppler velocimetry in hypertensive pregnant women and perinatal outcomes according to gestational age

Radiologia Brasileira — Sat, 17 Jul 2010 06:44:46 +0100

CONCLUSION: In fetuses of hypertensive pregnant women, UAPI demonstrated better correlations with perinatal outcomes than MCAPI and UAPI/MCAPI ratio. The risk for adverse gestational outcome should be evaluated taking the gestational age into consideration. (Source: Radiologia Brasileira)