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Ultrasound,vascular,color doppler

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https://www.readbyqxmd.com/read/29650457/-non-palpable-testicular-tumors-in-adults-a-management-based-on-imaging-issue-from-the-french-urologic-association-genital-cancer-committee-s-edit
#1
L Rocher, L Feretti, P Camparo, P H Savoie, N Morel-Journel, T Murez, P Sebe, A Flechon, A Méjean, X Durand
BACKGROUND: Help in management of non-palpable testicular tumors. French Urologic Association Genital cancer committee's Edit. OBJECTIVES: To review their characterization at imaging findings of non-palpable testicular tumors. DOCUMENTARY SOURCES: Literature review (PubMed, Medline) of urological and radiological studies dealing with testicular tumors using keywords: non-palpable/incidental testicular tumors; color Doppler ultrasound; US elastography; magnetic resonance imaging; contrast enhanced sonography; partial surgery...
April 9, 2018: Progrès en Urologie
https://www.readbyqxmd.com/read/29605575/effects-of-benign-prostatic-hyperplasia-and-finasteride-therapy-on-prostatic-blood-flow-in-dogs
#2
D S R Angrimani, G R Silvestrini, M M Brito, R A Abreu, L L Almeida, C I Vannucchi
Benign prostatic hyperplasia (BPH) is characterized by an enlargement of the prostate accompanied by an increase in prostatic blood perfusion and vascularization. The most indicated treatment is to perform orchiectomy, however, medical treatment with finasteride can be an option for breeding dogs or elderly animals with a critical health status. In dogs, the influence of medical treatment on prostatic hemodynamics is still unknown. Therefore, this study aimed to evaluate the effects of benign prostatic hyperplasia and finasteride therapy on hemodynamic and vascular features of the canine prostate...
March 27, 2018: Theriogenology
https://www.readbyqxmd.com/read/29596299/a-narrative-review-on-contrast-enhanced-ultrasound-in-aortic-endograft-endoleak-surveillance
#3
Sriharsha Gummadi, John R Eisenbrey, Andrej Lyshchik
Endovascular repair of abdominal aortic aneurysms have been performed successfully since 1991. However, 20% to 50% of these patients may develop an endoleak or continued aneurysmal sac expansion or perfusion despite stent graft coverage. Current recommendations suggest lifelong surveillance with computed tomographic angiography (CTA) at least 1 month after intervention and yearly after that. In select patients with a stable aneurysm sac on computed tomography performed 1 year after treatment, future screening could be performed with ultrasonography...
March 29, 2018: Ultrasound Quarterly
https://www.readbyqxmd.com/read/29563986/accurate-and-continuous-ultrasonography-evaluation-of-small-diameter-vascular-prostheses-in-vivo
#4
Jing Shi, Jialing Zhang, Meng Yin, Qian Wang, Jun Du
There is a large clinical requirement for novel vascular grafts; however, the development of novel vascular grafts has not been extremely successful to date. The most successful method for the continuous evaluation of vascular grafts in vivo remains unclear. Therefore, an optimal successive, non-invasive imaging modality is necessary for the study of vascular transplantation. In the present study, a common rabbit model of carotid artery defect was utilized. The patency and hemodynamic characteristics of implanted grafts was examined following surgery by color Doppler ultrasound in three modes, including B-mode, color flow map and pulse-Doppler examination...
April 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29558507/clinical-and-ultrasonographic-features-of-male-breast-tumors-a-retrospective-analysis
#5
Wei-Hsin Yuan, Anna Fen-Yau Li, Yi-Hong Chou, Hui-Chen Hsu, Ying-Yuan Chen
OBJECTIVE: The purpose of this study was to determine clinical and ultrasonographic characteristics of male breast tumors. METHODS: The medical records of male patients with breast lesions were retrieved from an electronic medical record database and a pathology database and retrospectively reviewed. A total of 112 men (125 breast masses) with preoperative breast ultrasonography (US) were included (median age, 59.50 years; age range, 15-96 years). Data extracted included patient age, if the lesions were bilateral, palpable, and tender, and the presence of nipple discharge...
2018: PloS One
https://www.readbyqxmd.com/read/29552737/test-retest-reliability-of-internal-pudendal-artery-blood-flow-using-color-doppler-ultrasound-in-healthy-women
#6
Joanie Mercier, An Tang, Mélanie Morin, Marie-Claude Lemieux, Samir Khalifé, Barbara Reichetzer, Chantale Dumoulin
INTRODUCTION AND HYPOTHESIS: The internal pudendal artery (IPA) is one of the main arteries supplying the pelvic floor muscles (PFMs) and vulvo-vaginal tissues. Its assessment with color Doppler ultrasound has been documented previously, but the reliability of IPA measurements has never been assessed. This study evaluates the test-retest reliability of IPA blood flow parameters measured by color Doppler ultrasound under two conditions: at rest and after a PFM contraction task. METHODS: Twenty healthy women participated in this study...
March 19, 2018: International Urogynecology Journal
https://www.readbyqxmd.com/read/29536417/detection-of-cavernous-transformation-of-the-portal-vein-by-contrast-enhanced-ultrasound
#7
REVIEW
Misun Hwang, Matthew A Thimm, Anthony L Guerrerio
PURPOSE: Cavernous transformation of the portal vein can be missed on color Doppler exam or arterial phase cross-sectional imaging due to their slow flow and delayed enhancement. Contrast-enhanced ultrasound (CEUS) offers many advantages over other imaging techniques and can be used to successfully detect cavernous transformations of the portal vein. METHODS: A 10-month-old female was followed for repeat episodes of hematemesis. Computed tomography angiography (CTA) and magnetic resonance arteriogram (MRA) and portal venography were performed...
March 13, 2018: Journal of Ultrasound
https://www.readbyqxmd.com/read/29531879/clinical-tests-combined-with-color-doppler-versus-color-doppler-alone-in-identifying-incompetent-perforator-veins-of-the-lower-limb-a-prospective-analytical-study
#8
Sathasivam Sureshkumar, Narayan Vignesh, J Venkatachalam, Chellappa Vijayakumar, Sundaramurthi Sudharsanan
Background The color Doppler, a better investigation to identify the perforators objectively has replaced the clinical examination for the same. However, this has led to a significant number of negative explorations and cosmetic disfigurement. Objective To compare the efficacy of the clinical tests combined with the color Doppler versus color Doppler alone to identify the perforator incompetence during the surgery for primary varicose veins of the lower limb. Methods This was a prospective analytical study, including 61 lower limb varicose vein patients who belonged to the Clinical-Etiology-Anatomy-Pathophysiology (CEAP) class four-six, planned for the surgical treatment for perforator incompetence, excluding those requiring additional vascular or nonvascular procedure, recurrent varicose veins and those who had injection sclerotherapy prior to the surgery...
January 5, 2018: Curēus
https://www.readbyqxmd.com/read/29515701/cryopreserved-human-allografts-for-the-reconstruction-of-aortic-and-peripheral-prosthetic-graft-infection
#9
Matteo Bossi, Matteo Tozzi, Marco Franchin, Stefania Ferraro, Nicola Rivolta, Massimo Ferrario, Chiara Guttadauro, Patrizio Castelli, Gabriele Piffaretti
Background : This study aimed to present cases with cryopreserved human allografts (CHAs) for vascular reconstruction in both aortic and peripheral infected prosthetic grafts. Materials and Methods : This is a single center, observational descriptive study with retrospective analysis. In all cases, the infected prosthetic graft material was completely removed. At discharge, patients were administered anticoagulants. Follow-up examinations included clinical visits, echo-color-Doppler ultrasounds, or computed tomography angiography within 30 days and at 3, 6, and 12 months after the treatment, and then twice per year...
December 25, 2017: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/29505406/receiver-operating-characteristic-analysis-of-eigen-based-clutter-filters-for-ultrasound-color-flow-imaging
#10
Adrian J Y Chee, Alfred C H Yu
The eigen-based filter has theoretically established itself as a potent solution in ultrasound color flow imaging (CFI) for combating against clutter arising from moving tissues. Yet, it remains poorly understood on how much gain in flow detection sensitivity and specificity can be delivered by this adaptive clutter filter. Here, we investigated the receiver operating characteristic (ROC) of the eigen-based clutter filter to statistically evaluate its efficacy. Our investigation was conducted using a new vascular phantom testbed that incorporated both intrinsic tissue motion (vessel pulsation: 7...
March 2018: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/29461604/a-novel-ultrasound-based-vascular-calcification-score-calcs-to-detect-subclinical-atherosclerosis
#11
R Flore, M A Zocco, M E Ainora, C Fonnesu, A Nesci, A Gasbarrini, F R Ponziani
OBJECTIVE: To quantify non-coronary vascular calcifications (VC) in asymptomatic patients at low-intermediate cardiovascular risk by a new color Doppler ultrasound (DUS)-based score (the carotid, aortic, lower limbs calcium score, CALCs), and to correlate this score with classical parameters associated with cardiovascular risk [carotid intima media thickness (IMT), and arterial stiffness (AS)]. PATIENTS AND METHODS: All consecutive asymptomatic patients who underwent a screening DUS of non-coronary circulation were evaluated and patients at low-intermediate cardiovascular risk were selected according to Framingham risk score (FRS)...
February 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29452721/use-of-the-gore-tigris-vascular-stent-in-advanced-femoropopliteal-peripheral-arterial-disease
#12
Pierleone Lucatelli, Marco Cini, Giulio Tommasino, Antonio Benvenuti, Giulia Guaccio, Stefano Bascetta, Eugenio Neri, Carmelo Ricci
PURPOSE: To prospectively evaluate the safety and efficacy of using the Tigris vascular stent (Gore, Flagstaff, Arizona) alone or in combination with the Viabahn stent (Gore) for revascularizing femoropopliteal Trans-Atlantic Intersociety Consensus (TASC) type B-D lesions with varying degrees of calcification. MATERIALS AND METHODS: Patients with Rutherford stage ≥ 3 and TASC type ≥ B were included in the study. From January 2015 to April 2017, 31 segments in 31 patients (21 men, ovarall mean age 73...
February 13, 2018: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/29434491/usefulness-of-a-novel-ultrasonographic-classification-based-on-anechoic-area-patterns-for-differentiating-warthin-tumors-from-pleomorphic-adenomas-of-the-parotid-gland
#13
Eriko Matsuda, Takahiro Fukuhara, Ryohei Donishi, Katsuyuki Kawamoto, Yasuaki Hirooka, Hiromi Takeuchi
Background: Ultrasonographic homogeneity is an important differential finding between Warthin tumor and pleomorphic adenoma, two types of benign parotid gland tumors, with the former likely to be heterogeneous and the latter homogeneous. However, differences in the performance of ultrasound machines or the homogeneity cut-off level affect the judgment of ultrasonographic homogeneity. Therefore, in this study, we adopted a novel system for classifying the composition of tumors via ultrasonography, using anechoic area as a substitute for differences in homogeneity to differentiate between Warthin tumors and pleomorphic adenomas...
December 2017: Yonago Acta Medica
https://www.readbyqxmd.com/read/29410373/association-of-real-time-intraoperative-contrast-enhanced-ultrasound-ceus-and-color-doppler-ultrasound-in-the-surgical-treatment-of-spinal-cord-dural-arteriovenous-fistulae-a-technical-note
#14
Giuseppe Maria Della Pepa, Giovanni Sabatino, Carmelo Lucio Sturiale, Enrico Marchese, Alfredo Puca, Alessandro Olivi, Alessio Albanese
BACKGROUND: In the surgical treatment spinal dural arteriovenous fistulas (dAVFs), intraoperative definition of dAVFs' anatomical characteristics and identification of fistulous point is mandatory to effectively exclude the dAVF. METHOD: Intraoperative ultrasound and contrast-enhanced ultrasonography (CEUS) integrated with color-doppler sonography was applied in the surgical setting for a cervical dAVF in order to identify fistulous point and evaluation of correct occlusion of the fistula...
February 1, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29409435/simulation-for-competency-assessment-in-vascular-and-cardiac-ultrasound
#15
Florence H Sheehan, R Eugene Zierler
Healthcare providers who use peripheral vascular and cardiac ultrasound require specialized training to develop the technical and interpretive skills necessary to perform accurate diagnostic tests. Assessment of competence is a critical component of training that documents a learner's progress and is a requirement for competency-based medical education (CBME) as well as specialty certification or credentialing. The use of simulation for CBME in diagnostic ultrasound is particularly appealing since it incorporates both the psychomotor and cognitive domains while eliminating dependency on the availability of live patients with a range of pathology...
February 1, 2018: Vascular Medicine
https://www.readbyqxmd.com/read/29393725/effects-of-laparascopic-hernia-repair-by-pirs-percutan-internal-ring-suturing-technique-on-testicular-artery-blood-supply
#16
Akgun Oral, Leyla Karaca, Ali Ahiskalioglu, Abdullah Yildiz, Murat Yigiter, Mehmet Emin Celikkaya, Temirlan Chyndolotov, Ahmet Bedii Salman
PURPOSE: Percutaneous internal ring suturing technique (PIRS) is a minimally invasive technique in pediatric inguinal hernia repair. In the present study, a negative effect on testicular blood flow using PIRS technique has been investigated. METHODS: Forty male patients were included in the study prospectively. Two groups were formed as conventional open surgery (Group I) and PIRS technique (Group II). The resistive index (RI) value of the testicular artery was measured prospectively by using SMI (superb micro-vascular imaging) software with the color doppler ultrasound technique preoperatively and postoperatively at the first month...
February 2, 2018: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/29390590/correlation-of-volumetric-flow-rate-and-skin-blood-flow-with-cold-intolerance-in-digital-replantation
#17
Gang Zhao, Jingyi Mi, Yongjun Rui, Xiaoyun Pan, Qun Yao, Yang Qiu
Cold intolerance is a common complication of digital replantation. The exact etiology is unclear, but it is considered to be multifactorial, including nonsurgical characteristics, vascular, and neurologic conditions. Blood flow may play a significant role in cold intolerance. This study was designed to evaluate the correlation of digital blood flow, including volumetric flow rate (VFR) and skin blood flow (SkBF), with cold intolerance in replanted fingers.A retrospective study was conducted among patients who underwent digital replantation between 2010 and 2013...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29350637/clinical-utility-of-eco-color-power-doppler-ultrasonography-and-contrast-enhanced-magnetic-resonance-imaging-for-interpretation-and-quantification-of-joint-synovitis-a-review
#18
Marina Carotti, Vittoria Galeazzi, Francesca Catucci, Marcello Zappia, Francesco Arrigoni, Antonio Barile, Andrea Giovagnoni
With the introduction of new biologics such as anti-TNF-alpha antibodies and other therapies in the treatment of inflammatory arthritis, capable of halting joint destruction and functional disability, there are new pressures on diagnostic and prognostic imaging. Early demonstration of pre-erosive inflammatory features and monitoring of the long-term effects of treatment are becoming increasingly important. Early detection of synovitis offers advantages in terms of allowing early instigation of therapy and may allow the identification of those patients displaying more aggressive disease who might benefit from early intervention with expensive DMARD therapy...
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29345146/quantitative-contrast-enhanced-ultrasound-for-monitoring-vedolizumab-therapy-in-inflammatory-bowel-disease-patients-a-pilot-study
#19
Ruediger S Goertz, Daniel Klett, Dane Wildner, Raja Atreya, Markus F Neurath, Deike Strobel
Background Microvascularization of the bowel wall can be visualized and quantified non-invasively by software-assisted analysis of derived time-intensity curves. Purpose To perform software-based quantification of bowel wall perfusion using quantitative contrast-enhanced ultrasound (CEUS) according to clinical response in patients with inflammatory bowel disease treated with vedolizumab. Material and Methods In a prospective study, in 18 out of 34 patients, high-frequency ultrasound of bowel wall thickness using color Doppler flow combined with CEUS was performed at baseline and after 14 weeks of treatment with vedolizumab...
January 1, 2018: Acta Radiologica
https://www.readbyqxmd.com/read/29319774/renal-artery-pseudoaneurysm
#20
Luiz Inácio Roman, Cauana Fabrício Efel, Victória Teles França, Carolina Meert Merten, Claus Dieter Dummer
The renal artery pseudoaneurysm embody a rare vascular complication coming of percutaneous procedures, renal biopsy, nephrectomy, penetrating traumas and more rarely blunt traumas. The clinical can be vary according the patient, the haematuria is the symptom more commom. Is necessary a high level of clinical suspicion for your diagnosis, this can be elucidated by through complementary exams as the eco-color Doppler and the computed tomography scan (CT). This report is a case of a patient submitted a right percutaneous renal biopsy and that, after the procedure started with macroscopic haematuria, urinary tenesmus and hypogastric pain...
October 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
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