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Ultrasound Quarterly

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https://www.readbyqxmd.com/read/30169495/gray-scale-ultrasound-color-doppler-ultrasound-and-contrast-enhanced-ultrasound-in-renal-parenchymal-diseases
#1
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
https://www.readbyqxmd.com/read/30169494/ultrasound-combined-with-microbubbles-increase-the-delivery-of-doxorubicin-by-reducing-the-interstitial-fluid-pressure
#2
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
https://www.readbyqxmd.com/read/30169493/review-ultrasound-elastography-applications-in-pediatrics
#3
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
https://www.readbyqxmd.com/read/30169492/translabial-ultrasound-in-midurethral-sling-mesh-visualization-and-erosion-detection-in-women-with-stress-urinary-incontinence-a-retrospective-pilot-study
#4
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
https://www.readbyqxmd.com/read/30169491/positioning-techniques-to-improve-the-ultrasound-evaluation-of-the-elbow
#5
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
https://www.readbyqxmd.com/read/30169490/hepatic-portal-venous-gas-review-of-ultrasonographic-findings-and-the-use-of-the-meteor-shower-sign-to-diagnose-it
#6
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
https://www.readbyqxmd.com/read/30169489/retrospective-analysis-of-contrast-enhanced-ultrasonography-effectiveness-in-reducing-time-to-diagnosis-and-imaging-related-expenditures-at-a-single-large-united-states-county-hospital
#7
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
https://www.readbyqxmd.com/read/30169488/usability-of-transthoracic-shear-wave-elastography-in-differentiation-of-subpleural-solid-masses
#8
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
https://www.readbyqxmd.com/read/30020274/effectiveness-of-bedside-lung-ultrasound-for-clinical-follow-up-of-primary-spontaneous-pneumothorax-patients-treated-with-tube-thoracostomy
#9
Arif Karagöz, Erden Erol Ünlüer, Onur Akçay, Emine Kadioğlu
Primary spontaneous pneumothorax (PSP) is a common cause of presentation to emergency departments and subsequent hospitalization. Patients with large PSP are treated with tube thoracostomy (TT) and followed up with x-rays. In this study, we investigated the efficiency of bedside ultrasound and compared it with x-ray imaging for the clinical follow-up of PSP patients treated with TT.This is a prospective observational study. After ethical committee approval and written informed consent were obtained, patients who were treated with TT because of PSP were screened...
July 17, 2018: Ultrasound Quarterly
https://www.readbyqxmd.com/read/30020273/the-extended-fetal-cardiac-examination-is-it-feasible-in-a-high-risk-practice
#10
John P McGahan, Ellen C Cheang, Simran Sekhon, Eugenio O Gerscovich, Gina James, Nina M Boe, Machelle D Wilson
The aims of this study were to demonstrate the feasibility of obtaining additional cardiac views as proposed on an extended fetal cardiac examination and to see if there was any variation in individual components of that examination stratified by sonographer training, patient body habitus, or equipment. We retrospectively reviewed 200 consecutive detailed second-trimester high-risk fetal obstetric sonograms that included additional extended cardiac views. We analyzed the percentage of the time individual views were obtained, with variation based on (1) a sonographer with greater than 3 years of training compared with a group with 6 to 12 months of training, (2) 2 different ultrasound units, and (3) different body mass indices...
July 17, 2018: Ultrasound Quarterly
https://www.readbyqxmd.com/read/30020271/the-high-frequency-ultrasound-detection-of-rat-sciatic-nerve-in-a-crushed-injury-model
#11
Xue-Jun Ni, Xiao-Dong Wang, Ya-Hong Zhao, Jia-Ying Qiu, Ying Chen, Yi Wang, Jing-Jian Chang
OBJECTIVE: This study aimed to visualize sciatic nerve injury in rats using ultrasound imaging in a crushed injury model. METHODS: Adult male Sprague-Dawley rats were subjected to a left sciatic nerve crush operation. Then, high-frequency ultrasound was used to image both sciatic nerves at 2 days and at 1, 2, 3, 4, and 6 weeks after surgery. RESULTS: Normal uninjured nerves have uniform thickness, display a smooth epineurium and inner adventitia, and are oblong in transverse sections...
July 17, 2018: Ultrasound Quarterly
https://www.readbyqxmd.com/read/30020269/contrast-enhanced-ultrasound-of-spermatic-cord-and-retroperitoneal-liposarcoma
#12
Aurash Naser-Tavakolian, Mittul Gulati, Vinay Duddalwar, Shefali Chopra, Manju Aron, Hooman Djaladat
Liposarcoma is the most common paratesticular scrotal malignancy. Ultrasound is the conventional imaging modality for evaluating scrotal masses. Contrast-enhanced ultrasound (CEUS) can provide complementary information by identifying distinct enhancement patterns. We present CEUS findings of 2 concurrent soft tissue masses in 1 patient: a spermatic cord well-differentiated liposarcoma and a retroperitoneal dedifferentiated liposarcoma. We review the Doppler ultrasound, computed tomography, and histopathologic appearances of low- versus high-grade liposarcomas in addition to the utility of CEUS with quantitative analysis in potentially grading liposarcomas...
July 17, 2018: Ultrasound Quarterly
https://www.readbyqxmd.com/read/30169480/literature-reviews
#13
Yoshimi Endo
No abstract text is available yet for this article.
September 2018: Ultrasound Quarterly
https://www.readbyqxmd.com/read/30169479/literature-reviews
#14
Sara Harvey
No abstract text is available yet for this article.
September 2018: Ultrasound Quarterly
https://www.readbyqxmd.com/read/30169478/editor-s-introduction-what-coaching-lacrosse-can-teach-all-of-us-about-leadership
#15
Theodore J Dubinsky
No abstract text is available yet for this article.
September 2018: Ultrasound Quarterly
https://www.readbyqxmd.com/read/30020272/hepatitis-c-associated-b-cell-non-hodgkin-lymphoma-a-pictorial-review
#16
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
https://www.readbyqxmd.com/read/30020270/carotid-ultrasound-examinations-indications-correlated-with-abnormal-findings
#17
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
https://www.readbyqxmd.com/read/30020268/transient-elastography-identifies-the-risk-of-esophageal-varices-and-bleeding-in-patients-with-hepatitis-b-virus-related-liver-cirrhosis
#18
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
https://www.readbyqxmd.com/read/30020267/the-application-of-parametric-micro-flow-imaging-in-the-evaluation-of-liver-fibrosis
#19
Shijia Huang, Ping Liang, Xiaoling Yu, Zhanbo Wang, Zhigang Cheng, Zhiyu Han, Jie Yu, Fangyi Liu, Min Zhang, Dezhi Zhang
This study aims to investigate the application of parametric micro-flow imaging in the evaluation of liver fibrosis. From March 2013 to February 2014, 117 participants were recruited in this research prospectively, which includes 97 patients (who have been infected with hepatitis B virus or/and hepatitis C virus and have undergone liver biopsy) and 20 healthy volunteers. Contrast agent was injected as a bolus via the antecubital vein for the participants. Dynamic images of intercostal liver were collected and then divided into 30-second (30s) group and 10-second (10s) group...
September 2018: Ultrasound Quarterly
https://www.readbyqxmd.com/read/29634669/effect-of-hepatic-inflammation-in-chronic-hepatitis-c-infection-on-fibrosis-assessment-by-arrival-time-parametric-imaging
#20
Noritaka Wakui, Hidenari Nagai, Yasushi Matsukiyo, Yu Ogino, Daigo Matsui, Takanori Mukozu, Michio Kogame, Teppei Matsui, Yasuko Daido, Koichi Momiyama, Kenichi Maruyama, Takahide Kudo, Mie Shinohara, Takashi Ikehara, Yasukiyo Sumino, Yoshinori Igarashi
Arrival time parametric imaging (At-PI) in contrast-enhanced ultrasonography is useful for assessing liver fibrosis in chronic hepatitis C (CHC) infection. The study aimed to elucidate the effect of hepatic inflammation on At-PI efficiency. Subjects were 159 CHC patients who underwent contrast-enhanced ultrasonography immediately before liver biopsy. Ultrasound contrast agent was injected, and contrast dynamics of the S5 to S6 region of the liver and right kidney were recorded for 40 seconds. The At-PI of liver parenchyma blood flow was generated using saved video clips...
September 2018: Ultrasound Quarterly
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