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Ultrasound,vascular,color doppler

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https://www.readbyqxmd.com/read/29876784/superb-micro-vascular-imaging-smi-a-doppler-ultrasound-technique-with-potential-to-identify-classify-and-follow-up-endoleaks-in-patients-after-endovascular-aneurysm-repair-evar
#1
Marcin Gabriel, Jolanta Tomczak, Magdalena Snoch-Ziółkiewicz, Łukasz Dzieciuchowicz, Ewa Strauss, Katarzyna Pawlaczyk, Dorota Wojtusik, Grzegorz Oszkinis
PURPOSE: The aim of the study was to assess the effectiveness of Superb Micro-vascular Imaging (SMI) as an alternative to Contrast-Enhanced Ultrasound (CEUS) and Computed Tomography Angiography (CTA) for endoleak detection and classification in patients followed up after endovascular abdominal aortic aneurysm repair (EVAR). MATERIALS AND METHODS: From May 2015 to January 2017, 30 patients underwent post-EVAR follow-up with Color Doppler Ultrasound (CDUS), CEUS, SMI, and CTA examinations...
June 6, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29874693/vascular-anomalies-part-i-classification-and-diagnostics-of-vascular-anomalies
#2
Maliha Sadick, René Müller-Wille, Moritz Wildgruber, Walter A Wohlgemuth
BACKGROUND:  Vascular anomalies are a diagnostic and therapeutic challenge. They require dedicated interdisciplinary management. Optimal patient care relies on integral medical evaluation and a classification system established by experts in the field, to provide a better understanding of these complex vascular entities. METHOD:  A dedicated classification system according to the International Society for the Study of Vascular Anomalies (ISSVA) and the German Interdisciplinary Society of Vascular Anomalies (DiGGefA) is presented...
June 6, 2018: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/29806324/-clinical-application-of-ultrasound-guided-fogarty-balloon-catheter-in-arterial-crisis
#3
Xiaodong Li, Pei Wang, Changyu Yu, Xiaowei Yan, Jing Yin
Objective: To explore the effectiveness of arterial crisis after replantation of limb treated by ultrasound guided Fogarty balloon catheter. Methods: Between January 2012 and July 2016, 27 patients suffered from arterial crisis after replantation of limb were treated with ultrasound guided Fogarty balloon catheter combined with thrombolytic anticoagulant. There were 18 males and 9 females with the age of 19-51 years (mean, 32 years). The limb mutilation position was at knee joint in 3 cases, lower limb in 9 cases, ankle joint in 6 cases, elbow joint in 2 cases, forearm in 4 cases, and wrist joint in 3 cases...
October 1, 2017: Chinese Journal of Reparative and Reconstructive Surgery
https://www.readbyqxmd.com/read/29793851/evaluation-of-examiner-performance-using-a-duplex-ultrasound-simulator-flow-velocity-measurements-in-dialysis-access-fistula-models
#4
Daniel F Leotta, R Eugene Zierler, Kurt Sansom, Alberto Aliseda, Mark D Anderson, Florence H Sheehan
We developed a duplex ultrasound simulator for training and assessment of scanning skills. We used the simulator to test examiner performance in the measurement of flow velocities in dialysis access fistulas. Test cases were created from 3-D ultrasound scans of two dialysis access fistulas by reconstructing 3-D blood vessel models and simulating blood flow velocity fields within the lumens. The simulator displays a 2-D B-mode or color Doppler image corresponding to transducer position on a mannequin; a spectral waveform is generated according to Doppler sample volume location and system settings...
May 21, 2018: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29744017/spontaneous-recanalization-after-carotid-artery-dissection-the-case-for-an-ultrasound-only-monitoring-strategy
#5
Sarah Lumsden, Gabor Rosta, Jean Bismuth, Alan B Lumsden, Zsolt Garami
Dissection of the internal carotid artery (ICA) accounts for 5% to 25% of ischemic strokes in young adults. We report a case of spontaneous recanalization of a traumatic ICA dissection in which carotid duplex (CDU) and transcranial color-coded duplex ultrasound (TCCD) were used. A 47-year-old male presented with intermittent episodes of headache, blurry vision, anisocoria, and loss of taste sensation following a whiplash injury while body surfing. Magnetic resonance angiogram (MRA) of the neck revealed absent flow in the cavernous ICA and a clot at the skull base...
October 2017: Methodist DeBakey Cardiovascular Journal
https://www.readbyqxmd.com/read/29735316/use-of-contrast-enhanced-ultrasound-in-the-assessment-of-uterine-fibroids-a-feasibility-study
#6
Barbara Stoelinga, Anniek M C Dooper, Lynda J M Juffermans, Arnoud W Postema, Hessel Wijkstra, Hans A M Brölmann, Judith A F Huirne
Contrast-enhanced ultrasound (CEUS) is an innovative ultrasound technique capable of visualizing both the macro- and microvasculature of tissues. In this prospective pilot study, we evaluated the feasibility of using CEUS to visualize the microvasculature of uterine fibroids and compared CEUS with conventional ultrasound. Four women with fibroids underwent gray-scale ultrasound, sonoelastography and power/color Doppler scans followed by CEUS examination. Analysis of CEUS images revealed initial perfusion of the peripheral rim, that is, a pseudo-capsule, followed by enhancement of the entire lesion through vessels traveling from the exterior to the interior of the fibroid...
May 4, 2018: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29728746/-contrast-enhanced-ultrasound-in-the-diagnostic-workup-of-lymph-nodes
#7
REVIEW
H-P Weskott
CLINICAL/METHODICAL ISSUE: Daily tasks in sonographic diagnostics include detection and characterization of peripheral and abdominal lymph nodes. STANDARD RADIOLOGICAL METHODS: In addition to the B‑mode methods, color-coded Doppler sonography (CCDS) plays an important role in the evaluation of lymph nodes. METHODICAL INNOVATIONS: Contrast-enhanced ultrasound (CEUS) has become a standard procedure in vascular and organ diagnostics. Tissue perfusion can be recorded visually and retrospectively in real time using time-dependent intensity analysis...
May 4, 2018: Der Radiologe
https://www.readbyqxmd.com/read/29683199/comparison-of-superb-microvascular-imaging-with-color-flow-and-power-doppler-imaging-of-small-hepatocellular-carcinomas
#8
Theodore J Dubinsky, Jonathan Revels, Sherry Wang, Giuseppe Toia, Rachelle Sonneborn, Daniel S Hippe, Todd Erpelding
OBJECTIVES: The purpose of this study was to compare Superb Microvascular Imaging (SMI; Toshiba America Medical Systems, Tustin, CA) with conventional color flow Doppler (CFD) and power Doppler (PD) imaging in the liver to distinguish between malignant and benign liver neoplasms. METHODS: After Institutional Review Board approval (number 449984-ED), patients undergoing routine pre-radiofrequency ablation planning ultrasound examinations for suspected hepatocellular carcinomas (HCCs) of less than 2 cm in diameter between January 1, 2015, and July 1, 2016, were prospectively identified...
April 23, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
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
#9
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
#10
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...
July 1, 2018: Theriogenology
https://www.readbyqxmd.com/read/29596299/a-narrative-review-on-contrast-enhanced-ultrasound-in-aortic-endograft-endoleak-surveillance
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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...
May 2018: Journal of Vascular and Interventional Radiology: JVIR
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