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Ultrasound Quarterly

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https://www.readbyqxmd.com/read/28877100/abdominal-pain-and-vomiting
#1
Joshua McCambridge, Peter Wang
Abdominal ultrasound of a 28-year-old man with chronic abdominal pain and vomiting demonstrates a dilated aperistaltic distal esophagus, which was confirmed on follow-up esophagram as achalasia. The 2 main types of achalasia are primary and secondary. Primary achalasia occurs with the loss of postganglionic neurons resulting in failed distal esophageal relaxation. Secondary achalasia is esophageal narrowing due to nondenervation causes. The diagnosis of achalasia is typically made with manometry and barium esophagram...
September 4, 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28877099/risk-of-pulmonary-embolism-in-patients-with-isolated-great-saphenous-vein-thrombus
#2
Akshya Gupta, Vijay Pandya, Timothy Baran, Vikram S Dogra
Risks associated with isolated great saphenous vein (GSV) thrombosis remain controversial. The purpose of this study is to identify the risk of pulmonary embolism (PE) in patients with isolated GSV thrombosis, particularly those with thrombus within 3 cm of the sapheno-femoral junction. A retrospective chart review of color flow Doppler lower extremity venous ultrasound examinations from an academic hospital from 2011 to 2016 was conducted. Seventy-eight patients were identified as having acute thrombus in their GSV and were then further stratified based on the presence or absence of concomitant deep venous thrombosis (DVT)...
September 4, 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28877098/a-3-dimensional-printed-ultrasound-probe-visuospatial-trainer
#3
Ryan T McKenna, Jesse C Dove, Robert A Ratzlaff, Jose L Diaz-Gomez, Daniel J Cox, Leslie V Simon
Training adult learners to use ultrasound in clinical practice relies on the ability of the learner to apply visuospatial concepts to the anatomy of the human body. We describe a visuospatial trainer that replicates the housing of an ultrasound transducer, through which a linear laser projects light in the same plane and orientation as the ultrasonic sound waves. We use this trainer in combination with a porcine heart dissection laboratory to teach bedside cardiac ultrasound and transthoracic echocardiography (TTE)...
September 4, 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28877097/application-of-transcranial-color-doppler-ultrasonography-for-assessing-middle-cerebral-arteries-in-rheumatoid-arthritis
#4
Qiuyue Chen, Shilin Li, Guorong Lv, Yanchun Zhao
To assess the role of ultrasonography for assessing middle cerebral arteries (MCAs) in rheumatoid arthritis (RA). Middle cerebral arteries of 32 RA patients and 32 healthy volunteers were examined by ultrasonography. Peak systolic blood flow velocity (PSV), end-diastolic velocity, and resistance index (RI) of MCA were measured using Doppler ultrasound. Results were expressed as mean ± SD. No significant difference in peak systolic velocity was obtained between RA patients (52.44 ± 19.56 cm/s) and healthy volunteers (51...
September 4, 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28877096/clinical-parameter-for-deciding-the-brafv600e-mutation-test-in-atypia-of-undetermined-significance-follicular-lesion-of-undetermined-significance-thyroid-nodules-us-features-according-to-tirads
#5
Miribi Rho, Eun-Kyung Kim, Hee Jung Moon, Jung Hyun Yoon, Vivian Y Park, Kyunghwa Han, Jin Young Kwak
This study aimed to investigate the usefulness of a thyroid imaging reporting and data system (TIRADS) to select thyroid nodules with atypia of undetermined significance/follicular lesion of undetermined significance (AUS/FLUS) cytology for additional BRAF mutation testing. Three hundred three thyroid nodules were included. Statistical analysis was performed at both patient and nodule levels according to BRAF mutation positivity and clinical factors. Univariate and multivariate logistic regression analyses were performed to assess independent associations between BRAF mutation positivity and clinical factors...
September 4, 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28704233/ultrasound-diagnosis-of-spontaneous-nephrocutaneous-fistula
#6
Raham Bacha, Syed Amir Gilani
No abstract text is available yet for this article.
July 12, 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28650421/percutaneous-irreversible-electroporation-for-portal-vein-tumor-thrombus-a-case-report
#7
Weilu Chai, Guo Tian, Tianʼan Jiang
No abstract text is available yet for this article.
June 23, 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28832404/literature-reviews
#8
(no author information available yet)
No abstract text is available yet for this article.
September 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28832403/literature-reviews
#9
(no author information available yet)
No abstract text is available yet for this article.
September 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28832402/literature-reviews
#10
(no author information available yet)
No abstract text is available yet for this article.
September 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28832401/advantages-of-routine-ultrasound-combined-with-contrast-enhanced-ultrasound-in-diagnosing-papillary-thyroid-carcinoma
#11
Fengsheng Li, Yunmei Wang, Baoyan Bai, Shengli Wang, Shuguang Liu
This study aimed to evaluate the advantages of routine ultrasound (US), contrast-enhanced US (CEUS), and the combination of these 2 methods in diagnosing papillary thyroid carcinoma (PTC). We subjected 89 patients with calcified thyroid nodules to conventional US and CEUS and then retrospectively analyzed the US and CEUS features of 89 patients with single, solid PTC. On this basis, we then evaluated the ability of US, CEUS, and their combination to diagnose PTC. In the 89 patients with thyroid nodules, US findings differed significantly from CEUS findings (P < 0...
September 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28832400/predicting-adverse-neonatal-outcome-especially-when-gestational-age-is-uncertain-utility-of-sonographic-measurement-of-fetal-abdominal-wall-thickness
#12
Lei Wu, Michael L Richardson, Theodore Dubinsky
Early and accurate prenatal diagnosis of intrauterine growth restriction is important. Commonly used biometric parameters have limited specificity and require accurate dating. Fetal abdominal wall thickness (AWT) could be a useful supplemental parameter. We performed a retrospective study of 100 third trimester ultrasound exams and compared the sensitivity and specificity of AWT to those of weight percentile (WP) in predicting adverse perinatal outcome.There is a statistically significant difference between the AWT of patients with normal perinatal outcome and that of patients with adverse outcome (P < 0...
September 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28832399/editor-s-introduction
#13
Theodore J Dubinsky
No abstract text is available yet for this article.
September 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28590290/huge-hepatic-fungal-inflammatory-pseudotumor-misdiagnosed-as-primary-hepatocellular-carcinoma
#14
Meng Fei Xian, Wen Tong Lan, Hui Huang, Dan Zeng, Zuo Feng Xu
Fungal inflammatory pseudotumor (FIPT) of the liver is a rare disease that may be mistaken for a malignant tumor. It is difficult to diagnose because of its nonspecific clinical and imaging features. We report the case of a 46-year-old Asian man who presented with a mass in the right upper quadrant of the abdomen. The patient had undergone transcatheter arterial chemoembolization therapy at another institution 6 months earlier, but the mass had continued to enlarge. He had no history of chronic hepatitis B, and the serum α-fetoprotein was negative...
September 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28549004/efficiency-of-b-mode-ultrasound-and-strain-elastography-in-differentiating-between-benign-and-malignant-cervical-lymph-nodes
#15
Eser Turgut, Cetin Celenk, Asli Tanrivermis Sayit, Tumay Bekci, Hediye Pinar Gunbey, Kerim Aslan
PURPOSE: The purpose of this study was to evaluate the diagnostic accuracy and efficiency of ultrasonography (US), especially when combined with strain elastography (SE), in differentiating between benign and malignant cervical lymph nodes (LNs). METHODS: Forty-one LNs were examined by B-mode US, power Doppler US, and SE. The following imaging features were analyzed: shape, echogenicity, echogenic hilum, calcification, intranodal vascular pattern, elasticity scores (5 categories), and strain ratio...
September 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28549002/clinical-significance-of-histogram-parameters-on-elastography-in-patients-with-papillary-thyroid-microcarcinomas
#16
Hee Yeun Yoon, Ji Hye Lee, Young Eun Kim, Eun-Kyung Kim, Hee Jung Moon, Jung Hyun Yoon, Vivian Y Park, Jin Young Kwak
OBJECTIVE: The purpose of our study was to determine objective histogram parameters on elastography that could predict poor prognosis factors of conventional papillary thyroid microcarcinomas (PTMCs). METHODS: From September to November in 2012, 79 patients with a diagnosis of PTMCs were included. Mean values of clinicopathologic variables and histogram parameters on elastography were compared between groups with or without poor prognostic factors using the Student t test, χ test, or Fisher exact test...
September 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28538590/ultrasound-diagnosis-of-clinically-unsuspected-ureteral-stone-presenting-as-acute-scrotum-case-series
#17
Ronald H Wachsberg
Ureteral colic is not generally included in the differential diagnoses of acute scrotal pain, although ureteral pathology is a recognized cause of pain referred to the scrotum. We report 3 patients presenting with acute scrotal pain who had normal scrotal color Doppler ultrasound scans; subsequent ultrasound of the ipsilateral kidney revealed hydronephrosis, which ultimately led to the clinically unsuspected diagnosis of ureteral colic. We conclude that ureteral colic should be included in the differential diagnosis of acute scrotal pain, and we further suggest that a survey ultrasound of the kidney on the side of the pain should be performed in patients presenting with acute scrotal pain and a normal color Doppler ultrasound examination of the scrotum...
September 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28514261/doppler-ultrasound-evaluation-of-circulatory-support-devices
#18
Zachary Nuffer, Andrey Rupasov, Shweta Bhatt
In the setting of mechanical circulatory support devices, including ventricular assist devices, extracorporeal membrane oxygenation, intraaortic balloon pumps, and the total artificial heart, the spectral Doppler waveform is significantly altered, reflecting systemic hemodynamic changes. As the prevalence of these devices increases, a better understanding of both the devices themselves and their associated Doppler ultrasound findings is necessary for accurate image interpretation. This article reviews the clinical indications, pathophysiology, and sonographic findings of these devices, with emphasis on the variation in arterial Doppler waveforms that can be seen with normal function, as well as the major complications...
September 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28514259/does-type-1-diabetes-mellitus-affect-the-shear-wave-velocity-of-the-thyroid-gland-of-children-without-autoimmune-thyroiditis
#19
Dilek Sağlam, Meltem Ceyhan Bilgici, Cengiz Kara, Gülay Can Yilmaz, Asli Tanrivermiş Sayit
OBJECTIVE: The aim of this study is to evaluate the shear wave velocity (SWV) of the thyroid gland with acoustic radiation force impulse elastography in children with type 1 diabetes mellitus (T1D). MATERIALS AND METHODS: Between November 2015 and April 2016, 35 T1D patients who were referred to our hospital's endocrinology outpatient clinic (mean age, 11.88 ± 4.1 years) and 30 children (mean age, 11.3 ± 3.08 years) in the control group were enrolled in the study...
September 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28350710/physical-chemistry-of-bile-detailed-pathogenesis-of-cholelithiasis
#20
Malak Itani, Theodore J Dubinsky
Despite the overwhelming prevalence of cholelithiasis, many health care professionals are not familiar with the basic pathophysiology of gallstone formation. This article provides an overview of the biochemical pathways related to bile, with a focus on the physical chemistry of bile. We describe the important factors in bile synthesis and secretion that affect the composition of bile and consequently its liquid state. Within this biochemical background lies the foundation for understanding the clinical and sonographic manifestation of cholelithiasis, including the pathophysiology of cholesterol crystallization, gallbladder sludge, and gallstones...
September 2017: Ultrasound Quarterly
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