Optimization of Patient Positioning for the Sonographic Evaluation of Gallstone Impaction: Analysis of Gallbladder Orientation Based on Computed Tomography
An important sonographic sign of cholecystitis is stone impaction in the gallbladder neck. Demonstration of stone mobility excludes impaction. The purpose of this study is to analyze the orientation of the gallbladder on computed tomography and determine the patient position most likely to facilitate stone mobility. ImageJ processing software was used to determine the x (transverse), y (anterior-posterior), and z (craniocaudal) coordinates for the gallbladder neck and fundus in 544 consecutive computed tomography examinations. The differences in the fundal and neck coordinates were used to determine the likelihood of movin...
Source: Ultrasound Quarterly - December 1, 2022 Category: Radiology Tags: Original Research Source Type: research

Blood Perfusion Characteristics of Renal Cell Carcinoma in the Process of Tumor Growth: Monitored With Multiple Sonographic Modalities
Tumor angiogenesis is an essential factor for tumor growth and antiangiogenic therapy. To simulate the blood perfusion characteristics of human renal cell carcinoma (RCC) longitudinally in the process of tumor growth, multimodal ultrasound examination was performed on 40 orthotopic xenograft RCC mouse models. According to tumor maximum diameter (d), tumor growth progress was divided into 3 steps: d ≤ 5 mm, 5 mm 10 mm. Color Doppler flow imaging (CDFI), superb microvascular imaging (SMI), and contrast-enhanced ultrasound were administered to monitor tumor perfusion characteristics. The abundance of tumor vascularity on CD...
Source: Ultrasound Quarterly - December 1, 2022 Category: Radiology Tags: Original Research Source Type: research

Ultrasound Versus Computed Tomography–Guided Native Parenchymal Kidney Biopsies for Hospitalized Patients: Comparison of Clinical Outcomes and Complications
Percutaneous native kidney biopsies performed with ultrasound (US) or computed tomography (CT) guidance are important in the workup of medical renal disease, with modality choice often dependent on the performing institution, with various complication rates reported. We compared the complication rates and types of complication of US- versus CT-guided native parenchymal renal biopsy among hospitalized patients. One hundred five consecutive inpatient US- and CT-guided native parenchymal renal biopsies performed by radiologists at a tertiary care academic center between 2006 and 2020 were reviewed retrospectively. Complicatio...
Source: Ultrasound Quarterly - December 1, 2022 Category: Radiology Tags: Original Research Source Type: research

Comparison of Doppler Ultrasound and Clinical Features of Patients With and Without Femoral Hernia in Lower Extremity Venous Insufficiency Patients
In this study, we aim to evaluate Doppler ultrasound (US) and clinical features of patients with and without femoral hernia (FH) in lower extremity chronic venous insufficiency (CVI) patients. (Source: Ultrasound Quarterly)
Source: Ultrasound Quarterly - December 1, 2022 Category: Radiology Tags: Original Research Source Type: research

Translabial Ultrasound: An Effective Modality for Evaluation of Midurethral Sling Revision
Midurethral sling (MUS) surgical procedures, in which a polypropylene synthetic mesh graft is transvaginally placed to support the urethra and manage stress urinary incontinence (SUI), is commonly performed (Urology. 2013;82(1):38-41; Radiology. 2018;289(3):728-729). Within 10 years of sling placement, about 1 in 20 women undergo subsequent surgery to revise their mesh, in which the mesh is cut or partially excised (Obstet Gynecol. 2019;133:1099-1108). Translabial ultrasound (TLUS) has been described as a sensitive technique for viewing MUS, although few studies have evaluated its ability to view surgically revised MUS (Ra...
Source: Ultrasound Quarterly - December 1, 2022 Category: Radiology Tags: Original Research Source Type: research

A Pictorial Review of Pelvic Pain—Beyond the Genitourinary System
Pelvic pain may be caused by disorders of the reproductive, urinary, or gastrointestinal systems. In the pediatric population, pelvic pain is often first evaluated with ultrasonography, with other imaging modalities reserved for further workup or specific indications. Radiologists must be aware of the findings associated with common pelvic emergencies to allow prompt diagnosis and prevention of life-threatening complications. Although the range of pelvic pathology is extensive, this pictorial review presents ultrasound examples of common nontraumatic causes of pelvic pain encountered in the pediatric population, with a bri...
Source: Ultrasound Quarterly - December 1, 2022 Category: Radiology Tags: Pictorial Essay Source Type: research

Obstetric Ultrasonography in Postgraduate Radiology Training: A National Survey Study
There is no study in the literature that reveals the adequacy of obstetric ultrasonography (US) training in Turkey. We aimed to evaluate the adequacy of obstetric US training radiologists had received during their residency and determine how competent they considered themselves to be in this regard. (Source: Ultrasound Quarterly)
Source: Ultrasound Quarterly - December 1, 2022 Category: Radiology Tags: Topics in Ultrasound Education Source Type: research

Subchorionic Hematoma Volume Measured by Virtual Organ Computer-Aided Analysis in the Prediction of First-Trimester Pregnancy Outcome
This study aimed to assess the association of subchorionic hematoma (SCH) size measured by virtual organ computer-aided analysis (VOCAL) with the first-trimester pregnancy outcome. A total of 139 first-trimester pregnancies from 6 to 12 weeks of gestational age with SCH were included. The circumference, area, and volume of the SCH (Cs, As, and 3DVs) and gestational sac (Cg, Ag, and 3DVg) were automatically calculated by VOCAL. Interobserver agreement was assessed with the intraclass correlation coefficient and Bland-Altman plot. Odds ratios for the clinical and ultrasound characteristics of adverse pregnancy outcomes were ...
Source: Ultrasound Quarterly - December 1, 2022 Category: Radiology Tags: Original Research Source Type: research

The Sonographic Features of Malformation in Fetal Echogenic Bowel and Its Relationship With Chromosome Abnormalities
The aims of this study were to analyze the sonographic features and clinical prognosis of fetal echogenic bowel (FEB) and to evaluate the value of FEB in the prediction of fetal chromosomal abnormalities. Eight hundred eighty-two fetuses with FEB were selected. The ultrasonographic features and the chromosomal examination were retrospectively analyzed. Among the 882 FEB, 272 (30.8%) cases had malformation. The most common malformation was cardiovascular malformation (21.6%), followed by urinary malformation (9.0%), craniocerebral malformation (6.8%), and gastrointestinal malformations (5.6%). According to other combined ul...
Source: Ultrasound Quarterly - December 1, 2022 Category: Radiology Tags: Original Research Source Type: research

The Confounding Ultrasound Diagnosis of Ectopic Pregnancy: Lessons From Peer Learning
As the treatment of ectopic pregnancy (EP) has shifted increasingly to medical therapies, the ultrasound (US) diagnosis of EP must necessarily favor specificity over sensitivity. Our review of peer learning cases of EP and early intrauterine pregnancies found several types of pitfalls and problems, which will be described in this essay. These issues include the following: differentiation of tubal EP from a corpus luteum by echogenicity relative to ovarian parenchyma, push technique, and claw sign; how to distinguish interstitial EP from eccentrically located intrauterine pregnancies (angular); use of trophoblastic flow in ...
Source: Ultrasound Quarterly - December 1, 2022 Category: Radiology Tags: SRU Resident Award Source Type: research

Clinical Effect of Intrauterine 3-Dimensional Ultrasound on the Function of the Intrauterine Cavity of Puerpera With Intrauterine Adhesions and Safety of Pregnancy
This study aimed to analyze the diagnostic value of intrauterine 3-dimensional ultrasound and the functional characteristics of the intrauterine cavity for puerpera with intrauterine adhesions, and to explore the safety of pregnancy after treatment. A total of 102 puerperas with intrauterine adhesions were randomly selected, and intrauterine 3-dimensional ultrasound and 2-dimensional ultrasound were performed, respectively. Patients were followed up for 3 years to observe the pregnancy outcome and safety. The overall accuracy of diagnosing intrauterine adhesions through intrauterine 3-dimensional ultrasound was significant...
Source: Ultrasound Quarterly - December 1, 2022 Category: Radiology Tags: Original Research Source Type: research

Retained Morbidly Adherent Placenta Presenting as a Myometrial Mass in Patients With Vaginal Bleeding: A Case Series and Review of Current Literature
The differential diagnosis for a uterine mass and vaginal bleeding after abortion or delivery is broad and includes both benign and malignant causes. A rare etiology for this condition is retained morbidly adherent placenta. Few cases of retained morbidly adherent placenta presenting as a myometrial mass in the setting of vaginal bleeding have been described in the medical literature. In this case series and review of the current literature, we describe the ultrasound features of 3 retained morbidly adherent placentae, along with correlative magnetic resonance imaging findings. (Source: Ultrasound Quarterly)
Source: Ultrasound Quarterly - December 1, 2022 Category: Radiology Tags: Review Article Source Type: research

Contrast-Enhanced Ultrasound of Brain Perfusion in Cardiopulmonary Resuscitation
To evaluate the feasibility and potential utility of contrast-enhanced ultrasound for real-time imaging of whole-brain perfusion during cardiopulmonary resuscitation (CPR), cardiac arrest was induced in 8- to 7-week-old 10-kg piglets (Sus scrofa domesticus). Contrast-enhanced ultrasound was performed through a parietal cranial window in the coronal plane visualizing the thalami during hemodynamic-directed CPR. Whole-brain mean and maximum pixel intensities in each slice during resuscitation were calculated. Piglets were monitored for 24 hours postarrest. Seven piglets achieved return of spontaneous circulation and 6 surviv...
Source: Ultrasound Quarterly - September 1, 2022 Category: Radiology Tags: Original Research Source Type: research

Clinical Significance of Shear Wave Ultrasound Elastography in Patients With Idiopathic Adhesive Capsulitis: Can It Be Used Instead of Magnetic Resonance Imaging as an Early Indicator?
The aim of this study was to evaluate the elasticity of the supraspinatus (SSp) and infraspinatus (ISp) tendons and coracohumeral ligament (CHL), as well as the thickness of CHL in patients diagnosed with adhesive capsulitis (AC) using ultrasound (US) and 2D shear wave elastography (2D-SWE), determining their contributions to diagnosis and stage differentiation. (Source: Ultrasound Quarterly)
Source: Ultrasound Quarterly - September 1, 2022 Category: Radiology Tags: Original Research Source Type: research

Association Between Lung Ultrasound Patterns and Pneumonia
Pneumonia is a common respiratory infection that affects the lungs. Lung ultrasound (LUS) is a portable, cost-effective imaging method, which is free of ionizing radiation and has been shown to be useful for evaluating pneumonia. The aim of this retrospective analytical study was to determine the association between lung ultrasound patterns and pneumonia. For the purpose of performing the required analysis, LUS patterns including consolidations, pleural line irregularities, A lines and B lines from 90 subjects (44 patients with confirmed pneumonia and 46 controls) were retrieved from a published open-access data set, which...
Source: Ultrasound Quarterly - September 1, 2022 Category: Radiology Tags: Original Research Source Type: research