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Radiologe. 2009 Nov;49(11):1085-1092 Authors: PMID: 19921296 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - November 1, 2009 Category: Radiology Tags: Radiologe Source Type: journals

[Is an X-ray sufficient for the assessment of patellofemoral joint arthrosis?]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
PMID: 19882334 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - November 1, 2009 Category: Radiology Authors: Kramer J Tags: Radiologe Source Type: journals

[Characterization and management of incidentally detected solitary pulmonary nodules.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
How to deal with solitary pulmonary nodules (SPN) which are incidentally detected by computed tomography (CT) is an increasingly important task in the era of modern multislice CT. This paper reviews the morphological and functional characteristics and their value for discrimination between benign and malignant SPNs. In particular, the importance of nodule size, growth rate, margin morphology, density, calcifications or fatty components within the nodules, the significance of cavitations or aerobronchograms, enhancement patterns at dynamic contrast-enhanced CT and findings on positron emission tomography (PET) are discu...
Source: Der Radiologe - November 1, 2009 Category: Radiology Authors: Menzel C, Hamer OW Tags: Radiologe Source Type: journals

[Current developments in vascular ultrasound.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This article describes and discusses these new techniques and methods of vascular ultrasound diagnostics with respect to their diagnostic value. PMID: 19859686 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - October 28, 2009 Category: Radiology Authors: Horng A, Reiser M, Clevert DA Tags: Radiologe Source Type: journals

[Ultrasound investigation of vessels supplying the extremities.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Ultrasound investigation of the vascular supply to legs and arms has become a standard procedure and is performed in all kinds of both arterial occlusive disease and venous disease. On the arterial side the most common disease is atherosclerosis in which stenoses and occlusions can be identified and characterized with respect to the functional significance. Sensitivity und specificity for the detection of symptomatic occlusions and stenoses are approximately 90% and 99%, respectively. This is the basis for planning invasive procedures, catheter interventions as well as operations. The short term success can be assessed...
Source: Der Radiologe - October 28, 2009 Category: Radiology Authors: Schellong SM Tags: Radiologe Source Type: journals

[Imaging of endoleaks after endovascular aneurysm repair (EVAR) with contrast-enhanced ultrasound (CEUS).]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This article describes the etiology, classification and importance of different types of endoleaks. The value of CEUS in this clinical scenario will be discussed. PMID: 19855950 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - October 25, 2009 Category: Radiology Authors: Clevert DA, Horng A, Kopp R, Schick K, Meimarakis G, Sommer WH, Reiser M Tags: Radiologe Source Type: journals

[Hemodialysis fistulas : Possibilities of vascular ultrasound.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Vascular ultrasound is an established technique in shunt diagnostics for hemodialysis fistulas that allows non-invasive diagnosis of vascular morphology and hemodynamics. Early detection of shunt stenoses in hemodialysis fistulas or thrombotic occlusions facilitates an interventional decision. High occlusion rates of up to 45% within 1 year in hemodialysis fistulas due to reduced flow volume justify follow up with vascular ultrasound examination. The use of high resolution transducers in vascular ultrasound enables complications, such as stenoses and occlusions to be recognized early therefore allowing preemptive thera...
Source: Der Radiologe - October 23, 2009 Category: Radiology Authors: Kubale R, Walker G, Jung EM, Clevert DA, Bücker A Tags: Radiologe Source Type: journals

[Ultrasound diagnostics of renal blood vessels and transplant kidney.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Ultrasound is usually the first imaging technique used in clinical practice for the visualization of renal blood vessels, especially when there is suspicion of renal artery stenosis. Apart from B-mode ultrasound, colour Doppler ultrasound, pulsed-wave Doppler are used as well as contrast-enhanced ultrasound, which is being used more and more as a routine technique. Ultrasound is important in nephrology for the detection of renal artery stenosis and the resistance indices from pulse-wave Doppler are also helpful in acute renal failure. Nevertheless resistance indices should be used carefully and always by being aware of...
Source: Der Radiologe - October 22, 2009 Category: Radiology Authors: Stock KF Tags: Radiologe Source Type: journals

[Ultrasound imaging of the abdominal aorta.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abnormalities of the abdominal aorta and the visceral vessels can represent a diagnostic challenge in patients with both acute and chronic clinical symptoms. In addition to the primary conventional examination using color-coded duplex ultrasound, contrast-enhanced ultrasound (CEUS) with low mechanical index (low MI) may contribute to achieving a precise diagnosis. CEUS is a new and promising method in the diagnosis and follow-up of aortic and visceral artery lesions. Color-coded duplex ultrasound and CEUS with SonoVue(R) allow a rapid and non-invasive diagnosis especially in critically ill patients as these methods can...
Source: Der Radiologe - October 10, 2009 Category: Radiology Authors: Clevert DA, Horng A, Reiser MF Tags: Radiologe Source Type: journals

[Minimally invasive management of metastases from gastrointestinal stromal tumors.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Minimally invasive radiological procedures can lead to an improvement in the prognosis and the clinical symptoms in cases of metastases of gastro-intestinal stromal tumors (GIST) in the context of multimodal therapy concepts. In the context of interdisciplinary therapy decision-making radiofrequency ablation (RFA) and transarterial tumor embolization should be considered. PMID: 19820910 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - October 10, 2009 Category: Radiology Authors: Kamusella PC, Bethke A, Platzek I, Wiggermann P, Wissgott C, Stroszczynski C Tags: Radiologe Source Type: journals

[Shaking trauma and baby syndrome.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
PMID: 19806339 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - October 6, 2009 Category: Radiology Authors: Reith W Tags: Radiologe Source Type: journals

[Multiple space-occupying lesions of the liver : A rare differential diagnosis.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The case of a 73-year-old female patient with a known increase in tumor markers is described. The course of this patient shows that a definitive diagnosis can sometimes not be achieved with comprehensive laboratory and imaging investigations alone. PMID: 19806340 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - October 6, 2009 Category: Radiology Authors: Tremper J, Aulmann S, Willig F, Zechmann CM Tags: Radiologe Source Type: journals

[Cranial birth trauma.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Injuries to an infant that result during the birth process are categorized as birth trauma. Cranial injuries due to mechanical forces such as compression or traction include caput succedaneum, cephalhematoma, subgaleal hematoma and intracranial hemorrhaging. Hypoxic ischemic encephalopathy is the consequence of systemic asphyxia occurring during birth. PMID: 19806341 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - October 6, 2009 Category: Radiology Authors: Papanagiotou P, Rohrer T, Roth C, Politi M, Zimmer A, Reith W Tags: Radiologe Source Type: journals

[Hearing loss and gait ataxia without dizziness.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Superficial cerebral hemosiderosis is characterized by sensorineural hearing loss, gait ataxia and pyramidal signs with irreversible myelopathy. It is caused by chronic hemorrhage into the subarachnoid space with hemosiderin deposition in the subpial, leptomeningeal and subependymal layers. Imaging of the entire neuroaxis is indicated to localize a source of bleeding, including cerebral and spinal angiography when necessary. Taking into account clinical signs and symptoms the interpretation of T2(*)-weighted images allows the radiologist to set the course for the optimal therapeutic regimen. PMID: 19787328 [PubMed ...
Source: Der Radiologe - September 29, 2009 Category: Radiology Authors: Albrecht L, Gabriel S, Packebusch A, Roth M, Beine KH, Faltraco F Tags: Radiologe Source Type: journals

[Imaging procedures for gastrointestinal stromal tumors.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Morphological and functional imaging methods are used for staging of gastrointestinal stromal tumors (GIST) and to follow-up GIST patients undergoing therapy. Computed tomography is the most frequently used morphological imaging procedure and has been recommended as the imaging method of choice according to current GIST guidelines. However, positron emission tomography using [(18)F]-2-fluoro-2-deoxy-D-glucose (FDG-PET) as the radiotracer has shown to be advantageous over morphological imaging procedures when assessing therapy response at an early time point. While tumor size reduction in morphological imaging typically...
Source: Der Radiologe - September 29, 2009 Category: Radiology Authors: Antoch G, Herrmann K, Heusner TA, Buck AK Tags: Radiologe Source Type: journals

[Pathology and molecular biology of gastrointestinal stromal tumors (GIST).]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Gastrointestinal stromal tumors (GIST) show an aggressive behavior with metastases and recurrences in up to 50% of cases. They can be clearly distinguished from other mesenchymal tumors by immunohistochemistry in the vast majority of cases. Of the tumors 85% carry somatic activating mutations in the receptor tyrosine kinases KIT or PDGFRA. The detection of these molecular events has changed the treatment of inoperable and metastatic GISTs dramatically as up to 80% of tumors respond well to tyrosine kinase inhibitors. This treatment has become the gold standard in the last few years with only few side effects. Knowledge...
Source: Der Radiologe - September 29, 2009 Category: Radiology Authors: Schildhaus HU, Merkelbach-Bruse S, Büttner R, Wardelmann E Tags: Radiologe Source Type: journals

[Shaken baby syndrome.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Shaken baby syndrome (SBS) describes the coincidence of subdural hematoma, retinal bleeding and, disadvantageous for the prognosis, diffuse brain damage caused by powerful shaking of the infant. The clinical symptoms include irritability, difficulty with drinking, somnolence, apathy, cerebral cramp attacks, apnoea, temperature regulation disorders and vomiting due to cranial pressure. Milder symptoms of SBS are often not diagnosed and the number of unregistered cases is probably much greater. The diagnosis of SBS is made through the typical symptom constellation, but the lack of retinal bleeding does not exclude the di...
Source: Der Radiologe - September 26, 2009 Category: Radiology Authors: Reith W, Rohrer T, Ahlhelm F, Papanagiotou P Tags: Radiologe Source Type: journals

[Color duplex sonography of extracranial brain-supplying arteries.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Ultrasound examination of extracranial blood-supplying arteries allows the simultaneous acquisition of morphologic and hemodynamic information with high spatial and temporal resolution. For detection and quantification of stenoses in the carotid and vertebral arteries, an intrastenotic peak systolic velocity of more than 120 cm/s is the threshold value for a diameter reduction of >50%. In addition there are further direct and indirect stenosis parameters (intrastenotic and poststenotic circulation disturbance, increased pulsatility in the prestenotic common carotid artery, intracranial or extracranial collateral pat...
Source: Der Radiologe - September 15, 2009 Category: Radiology Authors: Schulte-Altedorneburg G, Clevert DA Tags: Radiologe Source Type: journals

[Head injuries in children.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This article concentrates on accidental trauma with respect to characteristics of causes, epidemiology, mechanisms of accidents and illustrated morphological findings. PMID: 19756465 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - September 10, 2009 Category: Radiology Authors: Zimmer A, Reith W Tags: Radiologe Source Type: journals

[Flat-detector CT-based electromagnetic navigation.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This report explains the functionality of an electromagnetic navigation system and describes the course of an electromagnetically navigated puncture and the capabilities of such a system in the clinical routine. PMID: 19730807 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - September 3, 2009 Category: Radiology Authors: Meyer BC, Wolf KJ, Wacker FK Tags: Radiologe Source Type: journals

[A different ECG triggering can lead to significantly higher radiation doses during thorax CT.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
PMID: 19727641 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - September 2, 2009 Category: Radiology Authors: Körner M Tags: Radiologe Source Type: journals

[Flat-detector computed tomography in diagnostic and interventional neuroradiology.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Originally aimed at improving standard radiography by providing higher absorption efficiency and a wider dynamic range than available with film-screen and phosphor luminescence, radiography flat detector technology is now widely accepted for neuroangiographic imaging. Especially flat-detector computed tomography (FD-CT), which uses rotational C-arm mounted flat-panel detector technology, is capable of volumetric imaging with a high spatial resolution. As "angiographic CT" FD-CT may be helpful in many diagnostic and neurointerventional procedures, e.g. intracranial stenting for cerebrovascular stenoses, stent-assisted c...
Source: Der Radiologe - September 2, 2009 Category: Radiology Authors: Struffert T, Doerfler A Tags: Radiologe Source Type: journals

[Clinical assessment of suspected child physical abuse.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Violence against children has many faces. Child physical abuse, neglect, sexual abuse and interparental violence can cause acute and permanent damage and affect children's development and their life plans in the long term. In industrialized nations almost 1 child in 10 is affected. Up to 10% of child physical abuse cases involve the central nervous system with 80% of these cases occurring during the first year of life. Worldwide more than 50,000 children die as a result of violence, abuse and neglect every year, according to the United Nations Children's Fund UNICEF. In Germany, there are about 120 cases of non-acciden...
Source: Der Radiologe - September 2, 2009 Category: Radiology Authors: Rohrer T Tags: Radiologe Source Type: journals

[C-arm CT - a milestone in interventional imaging.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
PMID: 19707737 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - August 26, 2009 Category: Radiology Authors: Becker C, Loose R, Meißner O, Reiser M Tags: Radiologe Source Type: journals

[C-arm computed tomography for transarterial chemoperfusion and chemo-embolization of thoracic lesions.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
CONCLUSION: C-arm CT provides additional information on the vascular characteristics and perfusion of pulmonary lesions resulting in a change of interventional strategy in a relevant number of patients. PMID: 19707738 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - August 26, 2009 Category: Radiology Authors: Vogl TJ, Naguib NN, Nour-Eldin NE, Lehnert T, Mbalisike E Tags: Radiologe Source Type: journals

[C-arm CT for chemo-embolization of liver tumors.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Local efficacy of transarterial chemo-embolization (TACE) is enhanced if selective treatment is performed. Selectivity of TACE mainly depends on vascular anatomy but also on the identification and catheterization of tumor feeding arteries. Correlation of vascular territories and target tumor volume in angiographic projection images is more difficult if tumors are not hypervascularized and contrast of liver parenchyma is inhomogeneous.C-arm CT offers the option of selective perfusion imaging via tumor-feeding arteries. This allows the comparison of perfusion images and baseline cross-sectional imaging to evaluate if tum...
Source: Der Radiologe - August 26, 2009 Category: Radiology Authors: Huppert PE, Firlbeck G, Meissner OA, Wietholtz H Tags: Radiologe Source Type: journals

[CT diagnostics : Too much of a good thing is risky.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
PMID: 19701621 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - August 22, 2009 Category: Radiology Authors: Brix G Tags: Radiologe Source Type: journals

[C-arm CT-guided 3D navigation of percutaneous interventions.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
So far C-arm CT images were predominantly used for a precise guidance of an endovascular or intra-arterial therapy. A novel combined 3D-navigation C-arm system now also allows cross-sectional and fluoroscopy controlled interventions. Studies have reported about successful CT-image guided navigation with C-arm systems in vertebroplasty. Insertion of the radiofrequency ablation probe is also conceivable for lung and liver tumors that had been labelled with lipiodol. In the future C-arm CT based navigation systems will probably allow simplified and safer complex interventions and simultaneously reduce radiation exposure. ...
Source: Der Radiologe - August 22, 2009 Category: Radiology Authors: Becker HC, Meissner O, Waggershauser T Tags: Radiologe Source Type: journals

[Basics priciples of flat detector computed tomography (FD-CT).]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Flat detectors (FDs) have been developed for use in radiography and fluoroscopy to replace standard X-ray film, film-screen combinations and image intensifiers (II). In comparison to X-ray film and II, FD technology offers higher dynamic range, dose reduction, fast digital readout and the possibility for dynamic acquisitions of image series, yet keeping to a compact design. It appeared logical to employ FD designs also for computed tomography (CT) imaging. FDCT has meanwhile become widely accepted for interventional and intra-operative imaging using C-arm systems. Additionally, the introduction of FD technology was a m...
Source: Der Radiologe - August 22, 2009 Category: Radiology Authors: Kyriakou Y, Struffert T, Dörfler A, Kalender WA Tags: Radiologe Source Type: journals

[Internal medical therapy of gastrointestinal stroma tumors.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Until recently no active treatment for advanced or metastatic gastrointestinal stroma tumors (GIST) was available. The tyrosine kinase inhibitor imatinib has revolutionized the treatment of this disease and the median overall survival now reaches 5 years. The standard dose of imatinib is 400 mg per day. Locally advanced GIST should be treated with systemic therapy prior to surgical resection. Imatinib was recently licensed for adjuvant therapy following complete surgical removal of GIST in patients with a significant risk of recurrence. PMID: 19701624 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - August 22, 2009 Category: Radiology Authors: Reichardt P Tags: Radiologe Source Type: journals

[Use of C-arm CT for improving the hit rate for selective blood sampling from adrenal veins.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Primary hyperaldosteronism is the most common curable cause of hypertension with a prevalence of up to 12% among patients with hypertension. Selective blood sampling from adrenal veins is considered the diagnostic gold standard. However, it is underutilized due to the high technical failure rate. The use of C-arm CT during the sampling procedure can reduce or even eliminate this failure rate. If adrenal vein sampling is augmented by native C-arm CT to check for the correct catheter position, the technical success rate increases substantially. General use of this technique will result in correct diagnosis and treatment ...
Source: Der Radiologe - August 21, 2009 Category: Radiology Authors: Georgiades C, Kharlip J, Valdeig S, Wacker FK, Hong K Tags: Radiologe Source Type: journals

[C-arm CT for planning and guidance of extrahepatic embolizations.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Interventional radiological vascular embolizations are complex procedures that require exact imaging of the target region to facilitate safe and effective treatment. The purpose of this paper is to present the technique and feasibility of flat detector C-arm computed tomography (C-arm CT) for control and guidance of extrahepatic abdominal embolization procedures. C-arm CT images can provide important information on both vascular and cross-sectional anatomy of the target region, help in determining therapy endpoints and provide follow-up during and immediately after the abdominal interventions.The cases presented demons...
Source: Der Radiologe - August 21, 2009 Category: Radiology Authors: Wacker FK, Meissner OA, Meyer BC Tags: Radiologe Source Type: journals

[Application of C-arm computed tomography in cardiology.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
C-arm computed tomography is currently being introduced into cardiac imaging and offers the potential for three-dimensional imaging of the cardiac anatomy within the interventional environment. This detailed view is necessary to support complex interventional strategies, such as transcutaneous valve replacement, interventional therapy of atrial fibrillation, implantation of biventricular pacemakers and assessment of myocardial perfusion. Currently, the major limitation of this technology is its insufficient temporal resolution which limits the visualization of fast moving parts of the heart. PMID: 19685231 [PubMed ...
Source: Der Radiologe - August 15, 2009 Category: Radiology Authors: Rieber J, Rohkohl C, Lauritsch G, Rittger H, Meissner O Tags: Radiologe Source Type: journals

[Diagnostic endoscopy and endoscopic ultrasonography of gastrointestinal stroma tumors.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This article concentrates on the data based description of the current diagnostic and therapeutic recommendations in suspected small GISTs with respect to the European Society of Medical Oncology (ESMO) guidelines. Finally, the limited options of endoscopic treatment of GIST complications (bleeding, stenosis) and the significance of endoscopy and EUS in further diagnosis of GIST which had been suspected from radiological imaging are briefly discussed. PMID: 19685034 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - August 14, 2009 Category: Radiology Authors: Szukics B, Wagner A Tags: Radiologe Source Type: journals

[Treatment of mesenterial vein thrombosis.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
PMID: 19669724 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - August 11, 2009 Category: Radiology Authors: Schellhammer F, Fürst G Tags: Radiologe Source Type: journals

[Spinal tumors.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Spinal tumors can be intramedullary, intradural (within the meninges), or extradural (between the meninges and the bones), or they may extend secondary to the spine from other locations. Vertebral hemangioma represents the most common benign tumor of the spine. Metastases, lymphoma, and multiple myeloma are the most frequent malignant spinal tumors. Primary osseous tumors of the spine, in contrast, are rare conditions but may demonstrate typical imaging findings. For the differential diagnosis, the patient's age, the topographic localization of the mass, and morphologic features of the lesion as depicted by computed to...
Source: Der Radiologe - August 11, 2009 Category: Radiology Authors: Ahlhelm FJ, Fries P, Nabhan A, Reith W Tags: Radiologe Source Type: journals

[Oxygen-enhanced functional MR lung imaging.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This article focuses on the presentation of low-field scanners and the application of T1 and T2(*) maps is described for healthy volunteers and first patients. PMID: 19657614 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - August 6, 2009 Category: Radiology Authors: Beer M, Stäb D, Oechsner M, Hahn D, Köstler H, Hebestreit H, Jakob P Tags: Radiologe Source Type: journals

[Who is who in the fractures of the upper and lower limb.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The precision is a major factor in the communication of medical facts and data. Predominantly, it is reached by the use of classification systems. However, many of our classifications do not provide an unlimited use in the day-to-day practice. Thus, particularly in the field of traumatology, colloquialisms play a major role. They provide a high degree of information transmission. However, it is a must for all members of a trauma team to fully understand the definitions of such terms and use them in the same manner. PMID: 19652919 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - August 4, 2009 Category: Radiology Authors: Schueller G Tags: Radiologe Source Type: journals

[Qualitative and quantitative CT analysis of acute pulmonary failure.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Since its first application in patients with acute lung injury 25 years ago, computed tomography (CT) has significantly influenced the understanding of the pathophysiology, diagnosis and management of acute lung injury and has become an important diagnostic modality for these patients. The aim of this article is to review important disease-specific aspects of CT acquisition and qualitative and quantitative analyses of CT data. Morphological changes seen on CT and associated functional alterations are discussed. Methods used for the quantification of lung aeration are described and their limitations outlined. PMID: ...
Source: Der Radiologe - July 31, 2009 Category: Radiology Authors: Reske AW, Seiwerts M Tags: Radiologe Source Type: journals

[Functional (3)He-MRI of the lungs.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Pulmonary diseases have a high health-related and economic significance. (3)He-MRI is an alternative imaging method which can detect ventilatory disturbances with a high sensitivity. The application of different pulse sequences allows static and dynamic assessment of ventilation and bronchial gas flow, non-invasive measurement of intrapulmonary oxygen partial pressure and quantification of pulmonary parenchyma destruction and overinflation. Generally, the method is applicable for obstructive and restrictive ventilatory disturbances but initial approaches also exist for vascular pulmonary diseases. Specific clinical app...
Source: Der Radiologe - July 28, 2009 Category: Radiology Authors: Gast KK, Wolf U Tags: Radiologe Source Type: journals

[Magnetic resonance imaging of pulmonary perfusion : Technical requirements and diagnostic impact.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
With technical improvements in gradient hardware and the implementation of innovative k-space sampling techniques, such as parallel imaging, the feasibility of pulmonary perfusion MRI could be demonstrated in several studies. Dynamic contrast-enhanced 3D gradient echo sequences as used for time-resolved MR angiography have been established as the preferred pulse sequences for lung perfusion MRI. With these techniques perfusion of the entire lung can be visualized with a sufficiently high temporal and spatial resolution. In several trials in patients with acute pulmonary embolism, pulmonary hypertension and airway disea...
Source: Der Radiologe - July 21, 2009 Category: Radiology Authors: Attenberger UI, Ingrisch M, Büsing K, Reiser M, Schoenberg SO, Fink C Tags: Radiologe Source Type: journals

[MRI morphology of bone tumors and tumor-like lesions.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Spin-echo sequences are mandatory at MRI for staging and characterization of bone tumors and tumor-like lesions. MRI is of minor value in the estimation of the malignant potential of an osseous lesion. Although many bone tumors and tumor-like lesions present similar morphology at MRI, some entities can be diagnosed with good reliability. These include chondrogenic tumors, solitary and aneurysmal bone cysts, giant cell tumors, lesions containing fatty tissue and, to a certain extent, osteoid-osteomas and osteoblastomas. Practical advice is given regarding when to perform a MRI study in cases of tumor suspicion. Further ...
Source: Der Radiologe - July 15, 2009 Category: Radiology Authors: Erlemann R Tags: Radiologe Source Type: journals

[Should whole-body computed tomography no longer be missing in any resuscitation room?]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
PMID: 19568728 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - July 1, 2009 Category: Radiology Authors: Weber MA Tags: Radiologe Source Type: journals

[Tumors in the region of the sella turcica.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Tumors of the pituitary gland can lead to limitation of hypophysis function (hypophysis insufficiency) or hypersecretion of different hormones (acromegaly, Cushing's syndrome, prolactinoma, TSH-secreting adenoma). The optic chiasma lies in close proximity to the pituitary gland and can be compressed by tumors leading to visual disturbances (bilateral hemianopsia). Tumors can be separated into hormone secreting and hormone inactive tumors, as well as into microadenoma with a diameter <10 mm and macroadenomas >10 mm. A rare group of tumors of the hypophysis region are craniopharyngiomas, meningiomas, germinomas, gl...
Source: Der Radiologe - July 1, 2009 Category: Radiology Authors: Reith W Tags: Radiologe Source Type: journals

[The exact representation of skull base tumors as the basis for therapy.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
PMID: 19562319 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - June 27, 2009 Category: Radiology Authors: Reith W Tags: Radiologe Source Type: journals

[Anatomy of the skull base and the cranial nerves in slice imaging.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This article summarizes examination methods of the skull base in CT and MRI, gives a detailed description of the anatomy and illustrates it with image examples. PMID: 19506829 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - June 9, 2009 Category: Radiology Authors: Bink A, Berkefeld J, Zanella F Tags: Radiologe Source Type: journals

[Radiological procedures in the traumatised wrist.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Injuries of the wrist are difficult to diagnose because of the complex and narrow anatomic structures. On the basis of precise clinical examination, X-rays, CT and MRI are valuable additional tools that can be used. In the case of bone injury, spiral computer tomography with multiplanar reformatting is currently the method of choice. MRI is indicated for the identification of soft tissue or ligamentous injury and avital fragments or necrosis. Other diagnostic tools for the wrist are currently of minor importance. Technical and methodological innovations allow ever better visualisation and classification of lesions, as ...
Source: Der Radiologe - June 3, 2009 Category: Radiology Authors: Meier R, Jansen H, Uhl M Tags: Radiologe Source Type: journals

[Multi-detector computed tomography in non-traumatic urologic emergencies.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Today's modern multi-detector computer tomography (MDCT) with its fast gantry rotation enables scanning of large body volumes with high temporal and spatial resolution. The fast acquisition of data and subsequent data reconstruction enables multiphase protocols with short time gaps between consecutive scan series so that large numbers of scans within one respiratory pause are possible and even in cases of non-cooperative patients acceptable quality of image data is provided. The acquired thin-slice raw data with isotropic submillimeter voxels can be visualized with different reconstruction algorithms.The aadvantages of...
Source: Der Radiologe - May 31, 2009 Category: Radiology Authors: Scherr MK Tags: Radiologe Source Type: journals

[Imaging of trauma with multi-detector computed tomography.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Diagnosis of trauma-related injuries is a key task in modern radiology. Early, thorough and accurate detection of potentially life-threatening injuries is crucial for fast and targeted initiation of treatment.Conventional radiography (CR) and ultrasound (US) are well-established and still represent the basic diagnostic tools for trauma imaging. However, a number of studies have shown a lower detection rate of injuries for radiography and ultrasound compared with computed tomography (CT).Multi-detector CT (MDCT) with its shorter scan time and increased accuracy has become the gold standard for many indications in trauma...
Source: Der Radiologe - May 31, 2009 Category: Radiology Authors: Körner M, Reiser M, Linsenmaier U Tags: Radiologe Source Type: journals

[Neurologic emergencies and multislice computed tomography.]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Modern MSCT with its broad availability and rapid examination times is the preferred modality in the initial evaluation of neurologic emergencies and by its continual development has become more important within recent years. With increased spatial resolution and new post-processing techniques, non-invasive MSCT angiography is seen to increasingly replace diagnostic DSA. Multidetector CTA is a suitable method for the evaluation of intracranial aneurysms, carotid artery stenoses, arterial dissections, as well as cerebral venous and basilar artery thromboses. Multimodal CT (non-enhanced CCT, CTA and perfusion CT) is used...
Source: Der Radiologe - May 31, 2009 Category: Radiology Authors: Eftimov L, Morhard D, Reiser M, Ertl-Wagner B Tags: Radiologe Source Type: journals