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Ultrasound Quarterly

Takahiro Hosokawa, Yoshitake Yamada, Yutaka Tanami, Yumiko Sato, Mayumi Hosokawa, Eiji Oguma
This study was performed to compare computed tomography (CT)- and ultrasonography (US)-derived detection rates of portal venous gas (PVG) in pediatric patients and investigate whether discrepancies between these modalities were influenced by patient age and interval between examinations. We included 25 children who underwent both CT and US within 2 days for evaluation of intestinal ischemia. McNemar test was used to compare the detection of PVG between the 2 modalities. The cohort was retrospectively divided into 2 groups based on whether comparable results were obtained via both modalities; the Mann-Whitney U test was used to compare patient age and interval between CT and US between these 2 groups...
October 8, 2018: Ultrasound Quarterly
Linda C Kelahan, Terry S Desser, Megan L Troxell, Aya Kamaya
Ultrasound assessment of the kidneys in patients with renal impairment has been described in various ways in the critical care, nephrology, and radiology literature, resulting in a somewhat heterogeneous picture of the gray-scale and Doppler ultrasound manifestation of acute kidney injury (AKI). Given that ultrasound assessment can potentially identify reversible causes of AKI or identify underlying chronic kidney disease, it is important for radiologists to be aware of the common etiologies of AKI and the spectrum of ultrasound findings...
October 8, 2018: Ultrasound Quarterly
Mehmet Öztürk, Emine Çalişkan, Zuhal Bayramoğlu, İbrahim Adaletli
The normal elasticity and velocity values for palatine tonsils (PTs) in healthy children and adolescents were defined using shear wave elastography, and the relationship with potential factors affecting these values was assessed. This prospective study included a total of 80 cases with ages ranging from 3 to 17 years. Sex, age, and body mass index (BMI) were recorded. Elasticity and velocity measurements of both PTs and the relationship with basic descriptive data were investigated. For statistical analyses, independent-samples t tests and Spearman ρ (r) correlation coefficient were used...
October 8, 2018: Ultrasound Quarterly
Amit K Chakraborty, Eric W Olcott, Brooke R Jeffrey
One of the most useful sonographic signs of acute abdominal inflammation is the identification of increased echogenicity of the surrounding fat. Hyperechoic fat results from vasodilation and edema extending from an adjacent source of infection or inflammation. These changes are mediated by such factors such as bradykinin, histamine, and various cytokines. The recognition of hyperechoic fat on sonography may be an important indicator of the primary source of pathology. In addition, it often reflects a more advanced degree of transmural pathology, such as "walled-off" perforation of a hollow viscus...
October 8, 2018: Ultrasound Quarterly
Elçin Aydin, Cihan Altin, Gözde Özcan Söylev, Mustafa Agah Tekindal, Muhteşem Ağildere
PURPOSE: Patients with vitamin D deficiency (VDD) have potential to have increased cardiovascular morbidity and mortality. In this study, we aimed to discover the findings of early atherosclerosis in patients with VDD by measuring carotid intima-media thickness (CIMT) and epicardial fat thickness (EFT). MATERIALS AND METHODS: The study population includes 52 patients with VDD (n = 30 [57% female], mean ± SD age 54.28 ± 8.77 years, mean ± SD serum 25-hydroxyvitamin D (25 [OH] D) 11 ± 2...
October 8, 2018: Ultrasound Quarterly
Shaimaa A Fadl, Ahmed Saied Sabry, Daniel Scott Hippe, Amal Al-Obaidli, Reda Ramadan Yousef, Theodore J Dubinsky
BACKGROUND: Endometrial polyps are localized overgrowth of glands, stroma, and blood vessels and reported in 13% to 50% of women with dysfunctional uterine bleeding. Transvaginal ultrasound (TVUS) is the initial noninvasive modality of choice for the evaluation of endometrial polyps. The addition of intrauterine contrast by adding saline during saline infusion sonohysterography (SIS) has been reported to improve diagnostic accuracy in detecting of endometrial polyps. Given all the technical advances in ultrasound instrumentation and technology over the last 10 years, we wanted to revisit the diagnostic accuracy and associated confidence level of TVUS and SIS for detecting endometrial polyps...
October 8, 2018: Ultrasound Quarterly
Hye Jin Baek, Dong Wook Kim, Yoo Jin Lee, Hye Shin Ahn, Ji Hwa Ryu
This study aimed to compare diagnostic accuracy of real-time and static ultrasonography (US) for differentiating diffuse thyroid disease (DTD) from normal thyroid parenchyma (NTP). At 4 participating institutions, 203 patients underwent real-time thyroid US before thyroid surgery. For static US, the same radiologists retrospectively evaluated US findings on a picture archive and communication system after 4 weeks. In real-time and static US diagnoses, US category included no DTD, indeterminate, suspicious for DTD, and DTD...
October 8, 2018: Ultrasound Quarterly
Emilio Quaia, Jean Michel Correas, Maithili Mehta, John T Murchison, Antonio Giulio Gennari, Edwin J R van Beek
Ultrasound (US), which may be combination of gray scale and spectral Doppler US, color and power Doppler US, with or without microbubble contrast agents, is usually the first imaging modality to be used in renal parenchymal diseases. The most typical appearance of diffuse renal parenchymal diseases on gray scale US is an increased renal cortical echogenicity and increased or reduced corticomedullary differentiation. Spectral Doppler analysis of intrarenal flows may reveal an increase in intrarenal resistive index value greater than 0...
August 31, 2018: Ultrasound Quarterly
Nina Xiao, Jianhua Liu, Lianlian Liao, Jimei Sun, Wenhui Jin, Xian Shu
The aims of this study were to determine the change of interstitial fluid pressure (IFP) after therapy using pulsed low-frequency ultrasound combined with microbubbles and to determine the change of doxorubicin penetration in VX2 tumor. In this study, all 48 tumor-bearing rabbits were divided randomly into 6 groups (n = 8 per group). These 6 groups include doxorubicin therapy together with ultrasound combined with microbubble treatment group (Ad-US-MB treatment group), US-MB treatment group, US treatment group, MB treatment group, doxorubicin treatment group (Ad treatment group), and blank control group...
August 31, 2018: Ultrasound Quarterly
Vishal Thumar, Judy H Squires, Paul J Spicer, Amie L Robinson, Sherwin S Chan
Ultrasound is one of the most important imaging modalities in pediatric imaging because of its accessibility, portability, lack of ionizing radiation, and ability to generally perform examinations without need for sedation. Ultrasound elastography can measure the stiffness of various tissues. This review article aims to discuss how ultrasound elastography has performed in evaluating multiple pathologies in the pediatric population. The best studied pediatric applications are in liver diseases such as fibrosis, biliary atresia, and hepatic vascular congestion...
August 31, 2018: Ultrasound Quarterly
Karoly A Viragh, Seth A Cohen, Shlomo Raz, Jocelyn Lo, Steven S Raman
Sling erosion is a significant complication of midurethral sling (mesh) placement for stress urinary incontinence, a common pelvic floor disorder. The goal of this retrospective case-control pilot study was to evaluate the performance of translabial ultrasound (TLUS) and magnetic resonance imaging in diagnosing mesh erosion. Therefore, women who underwent surgery in the setting of prior failed midurethral sling for stress urinary incontinence were identified from the hospital database. The case subcohort comprised all women with intraoperatively documented erosion, and the control subcohort comprised an equal number of randomly selected patients without erosion...
August 31, 2018: Ultrasound Quarterly
Kamal Mezian, Stanislav Machač, Ali Zavareh, Lucia Majerníková, Jan Vacek, Leoš Navrátil, Marc Schmitz
We introduce an ergonomic positioning for sonographic scanning of elbow joint where the patient is lying semisupine on the examination bed. This is in contrast with the conventional positioning where the patient is sitting on the edge of the bed or across the table on a chair. Our proposed positioning is more comfortable for both the patient and ultrasound practitioner. It also allows immediate ultrasound-guided injections with lesser risk regarding a vasovagal syncope of the patient.
August 31, 2018: Ultrasound Quarterly
Keng-Wei Liang, Hsin-Hui Huang, Yeu-Sheng Tyan, Teng-Fu Tsao
Ultrasonography (US) is believed to be the most available method of detecting hepatic portal venous gas (HPVG) with real-time imaging capability. Hepatic portal venous gas has characteristic image appearances in various ultrasound modes such as bright mode, Doppler mode, and even motion (M) mode. In this article, we give a comprehensive review of the image appearances of HPVG among different modes of US with a special focus on the M mode US. Hepatic portal venous gas was recognized as linear echogenicities in various oblique directions (the meteor shower sign) on the M mode US...
August 31, 2018: Ultrasound Quarterly
Jeffrey W Streb, Hisham Tchelepi, Harshawn Malhi, Corinne Deurdulian, Edward G Grant
Hepatic and renal lesions detected during ultrasound examinations frequently require subsequent contrast-enhanced computed tomography (CT) or magnetic resonance imaging (MRI) for characterization, delaying time to imaging diagnosis and increasing overall health care expenditures. Contrast-enhanced ultrasonography (CEUS) is a comparatively low-cost diagnostic tool that is underutilized in the evaluation of such indeterminate or suspicious hepatic and renal lesions. A retrospective chart review of CEUS examinations performed in our department demonstrated significantly shorter time to imaging diagnosis with CEUS compared to CT or MRI, largely due to the ability to perform the CEUS examination at the time of initial examination...
August 31, 2018: Ultrasound Quarterly
Mesut Ozgokce, Alpaslan Yavuz, Ibrahim Akbudak, Fatma Durmaz, Ibrahim Uney, Yener Aydin, Hanifi Yildiz, Abdussamet Batur, Harun Arslan, Ilyas Dundar
In this study, the effectiveness of transthoracic ultrasound elastography in the benign and malign distinction of subpleural/pleural solid lesions was investigated.Between July 2015 and December 2016, 33 consecutive patients with subpleural solid lesions detected via computed tomography (CT) of the thorax were identified and prospectively included in this study. The average for each lesion's shear wave velocity (SWV) value was detected, and benign and malignant lesions' SWV values are statistically compared...
August 31, 2018: Ultrasound Quarterly
Sara Harvey
No abstract text is available yet for this article.
September 2018: Ultrasound Quarterly
Theodore J Dubinsky
No abstract text is available yet for this article.
September 2018: Ultrasound Quarterly
Laura Iliescu, Adriana Mercan-Stanciu, Elena Simona Ioanitescu, Letitia Toma
BACKGROUND AND PURPOSE: Hepatitis C virus (HCV) can induce both hepatic and extrahepatic malignancies. A strong association between HCV and non-Hodgkin lymphomas (NHLs) has been demonstrated. The purpose of this article is to give emphasis on the clinical and imagistic particularities of the hepatitis C-associated NHL, revealing the importance of ultrasonography in discovering and characterizing splenic masses. METHODS: We present the cases of 3 women (aged 72, 61, and 56 years, respectively), all of which had a history of chronic hepatitis C and were subsequently diagnosed with different forms of lymphoma...
September 2018: Ultrasound Quarterly
James B Naidich, Amanda Weiss, Gregory M Grimaldi, Nina Kohn, Jason J Naidich, John S Pellerito
Our purpose was to evaluate the clinical indications for carotid duplex ultrasonography and determine for each indication how often carotid artery disease was identified.We retrospectively reviewed the consecutive reports for 3191 carotid ultrasound examinations. We tracked 14 indications to determine how often examinations were requested for each indication and correlated each indication with the finding of carotid artery disease.We found 26.5% of all examinations were abnormal; 17.5% of patients showed internal carotid artery disease; 10...
September 2018: Ultrasound Quarterly
Qingjing Zhu, Weijun Wang, Jinfang Zhao, Afnan Ahmed Mohamed Al-Asbahi, Ying Huang, Fan Du, Jianning Zhou, Yuhu Song, Keshu Xu, Jin Ye, Ling Yang
This study aimed to analyze the diagnostic accuracy of liver stiffness for predicting esophageal variceal grading and the risk of esophageal variceal bleeding (EVB) in cases of cirrhosis. Hematological and biochemical parameters were measured and transient elastography was performed in 88 patients with hepatitis B-related cirrhosis undergoing endoscopy for esophageal varices. Esophageal varices grade was highly correlated with liver stiffness measurement (LSM) and the liver stiffness spleen diameter-to-platelet score in cirrhosis...
September 2018: Ultrasound Quarterly
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