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sonography doppler

Jeffrey Gnerre, Yankai Sun, Andrzej Jedynak, Anthony Gilet
Gallbladder varices are a rare form of collateralization that develop in patients with portal hypertension. We present here a case of gallbladder varices accurately diagnosed by contrast enhanced CT imaging of the abdomen and confirmed by Color Doppler Sonography. A 76-year-old patient with hepatocellular carcinoma developed portal vein thrombosis due to tumor extension during the course of treatment and was incidentally discovered to have gallbladder varices. While most commonly asymptomatic, gallbladder varices are associated with increased risk of massive bleeding, either spontaneously or during cholecystectomy...
May 2016: Journal of Radiology Case Reports
Shu-Ya Tsai, Chih-Yi Hsu, Yi-Hong Chou, Yi-Chen Lai, Yung-Hui Lin, Hsin-Kai Wang, Hong-Jen Chiou, Jane Wang, Chui-Mei Tiu
Solitary fibrous tumor (SFT) is an uncommon neoplasm of mesenchymal origin, which can be benign or malignant. Most SFTs develop from the pleura, but they can also be found in other sites. There are only few reports of SFT occurring in the breast. We herein report such a rare case. Sonography demonstrated an ovoid lesion mimicking a fibroadenoma, whereas color Doppler imaging showed marked internal vascularity. A brief literature review on imaging features of SFTs is added. © 2016 Wiley Periodicals, Inc. J Clin Ultrasound, 2016...
October 18, 2016: Journal of Clinical Ultrasound: JCU
Fu-Nan Cho, San-Nung Chen, Yu-Hsiang Chang, James R Carey
OBJECTIVE: Placental site trophoblastic tumor (PSTT) is rare and is characterized by a slow growth. The objective of this report is to present a case of PSTT associated with irregular vaginal spotting that occurred 1 year after normal vaginal delivery. CASE REPORT: This report provides interesting ultrasound, hysteroscopy, and histology findings of PSTT. It is difficult to make a clinical diagnosis of PSTT at an early stage. Without the use of immunohistochemical analysis, PSTT may evade histological detection...
October 2016: Taiwanese Journal of Obstetrics & Gynecology
Salvatore Gitto, Anna Guja Draghi, Chandra Bortolotto, Ferdinando Draghi
This review aims to provide the radiologist with simple and systematic guidelines for evaluation of the Achilles tendon after complete rupture repair. Currently, there is a plethora of nonsurgical and surgical treatments, but sonographic examination has shown no significant differences between them. A systematic analysis of several parameters (morphologic characteristics, structure, color Doppler vascularization, and mobility) should be undertaken. Morphologically, the repaired tendon is larger, wider, or both...
October 13, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
Júlio Cezar M A Mancini, Márcio Ricardo Taveira Garcia, Ilka Regina Souza de Oliveira, Ronaldo Rodrigues de Freitas, João Gualberto C Luz
PURPOSE: This study assessed the arterial blood supply to the mandible of edentulous patients treated for mandibular fractures using colour Doppler ultrasound. METHODS: The blood supply of edentulous patients surgically treated for mandibular fractures (group A) and edentulous fracture-free individuals (group B) was assessed. Only the fractured sides were evaluated in the first group (N = 17), whereas each side was evaluated in the second group (N = 20)...
October 1, 2016: Oral and Maxillofacial Surgery
Makoto Iijima, Hug Aubin, Meike Steinbrink, Franziska Schiffer, Alexander Assmann, Richard D Weisel, Yoshiro Matsui, Ren-Ke Li, Artur Lichtenberg, Payam Akhyari
The ideal small-diameter vascular graft for widespread clinical application has not yet been developed and current approaches still suffer from graft failure because of thrombosis or degeneration. Decellularized vascular grafts are a promising strategy as they preserve native vessel architecture while eliminating cell-based antigens and allowing for autologous recellularization. In this study, we used a functional in vivo rodent aortic transplantation model in order to evaluate the benefit of bio-active coating of decellularized vascular grafts with vascular endothelial growth factor (VEGF) conjugated to a temperature-sensitive aliphatic polyester hydrogel (HG)...
September 30, 2016: Journal of Tissue Engineering and Regenerative Medicine
E López, T Ripolles, M J Martinez, P Bartumeus, J Blay, A López
AIM: The aim was to prospectively evaluate the positive predictive value of ultrasound in the diagnosis of ischemic colitis, with colonoscopy as the reference standard. METHODS: During a 2-year period we included consecutive patients over 50 years of age with sudden abdominal pain and/or rectal bleeding who underwent abdominal sonography in an emergency setting with a thickened segment of colon with a length of more than 10 cm. This clinical-sonographic triad was considered diagnostic for ischemic colitis...
November 2015: Ultrasound Int Open
Shoichi Matsutani
No abstract text is available yet for this article.
October 2016: Journal of Medical Ultrasonics
Min Hee Lee, Hae Kyung Lee, Seo-Youn Choi, Boem Ha Yi
PURPOSE: The effectiveness of real-time feedback using an audible pulse in renal Doppler ultrasonography was evaluated. METHODS: This study was approved by the institutional review board of our hospital. Written informed consent was provided by all volunteers at enrollment. The 26 healthy volunteers enrolled in this study underwent Doppler ultrasound of both kidneys using audible and inaudible pulses in randomized order and at 1-week intervals. Doppler waveforms were obtained at the interlobar or arcuate arteries using a 2-mm Doppler gate...
2016: PloS One
I Dierickx, S Van Hooland, K Tomsin, D Vanercke, W Cools, H Fransen, W Gyselaers
INTRODUCTION: Studying the venous compartment may add valuable information on background mechanisms and (patho)physiology of the cardiovascular system in normal pregnancies and pregnancies complicated by preeclampsia. Every component of the venous pulse wave is reflecting a specific stage of the cardiac cycle in the right atrium, and can be recognized in the neck veins, the hepatic and the renal veins. Previous studies have demonstrated the repeatability and reproducibility of venous Doppler sonography and venous pulse transit time in renal interlobar and hepatic veins...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
Thomas Sauvigny, Katja Brückner, Lasse Dührsen, Oliver Heese, Manfred Westphal, Stefan R G Stodieck, Tobias Martens
OBJECTIVE: Selective amygdalohippocampectomy (sAHE) is a well-established treatment for temporal lobe epilepsy, commonly with favorable neuropsychological outcome. Yet, it is still unknown if subsequent resection of the anteromesial temporal lobe (AMTLR), when necessary, deteriorates neuropsychological performance in this selected group of patients. Thus, we evaluated the clinical and neuropsychological data of patients who, due to insufficient seizure control after sAHE, received a subsequent ipsilateral AMTLR and compared these findings with patients who did not receive a second resection (control group)...
September 28, 2016: Epilepsia
Alexander Marschall, Anja Ficjian, Martin H Stradner, Rusmir Husic, Dorothea Zauner, Werner Seel, Nicole E Simmet, Alexander Klammer, Petra Heizer, Kerstin Brickmann, Judith Gretler, Florentine C Fürst-Moazedi, Rene Thonhofer, Josef Hermann, Winfried B Graninger, Stefan Quasthoff, Christian Dejaco
OBJECTIVES: To investigate the prognostic value of B-mode and Power Doppler (PD) ultrasound of the median nerve for the short- and long-term clinical outcomes of patients with carpal tunnel syndrome (CTS). METHODS: Prospective study of 135 patients with suspected CTS seen 3 times: at baseline, then at short-term (3 months) and long-term (15-36 months) follow-up. At baseline, the cross-sectional area (CSA) of the median nerve was measured with ultrasound at 4 levels on the forearm and wrist...
2016: PloS One
Daniel Schuepbach, Stephan T Egger, Heinz Boeker, Stefan Duschek, Stefan Vetter, Erich Seifritz, Sabine C Herpertz
Patients with schizophrenia show deficits in cognitive functioning, and studies on cerebral hemodynamics have revealed aberrant patterns of mean cerebral blood flow velocity (MFV), an equivalent of cerebral blood flow (CBF). Therefore, we carried out a controlled study that assessed MFV in schizophrenia during a well-known neuropsychological task, the Trail Making Test (TMT). We measured MFV in the middle cerebral arteries using functional transcranial Doppler sonography in 15 schizophrenia patients and 15 healthy subjects...
September 17, 2016: Brain and Cognition
P Uharcek, A Manova, A Brestansky, M Zajacova, J Ravinger
No abstract text is available yet for this article.
September 2016: Ultrasound in Obstetrics & Gynecology
Franz Bahlmann, Ralph Gallinat, Monica Schmidt-Fittschen, Ammar Al Naimi, Iris Reinhard, Arne Willruth
OBJECTIVE: The aim of this study is to establish new Doppler reference values in a population with normal pulmonary veins during different phases of the fetal cardiac cycle for maximum blood flow velocities during ventricular systole (S), early ventricular diastole (D), atrial contraction (a), intensity-weighted mean velocity (Vmean) and the indices derived from these parameters [(S - a)/D] and [(S - a)/Vmean]. METHODS: The pulsed-wave color advanced dynamic flow Doppler technique was used in a prospective cross-sectional study of 365 low-risk pregnancies between 18 and 41 completed gestational weeks...
September 19, 2016: Prenatal Diagnosis
Piotr Czuczwar, Slawomir Wozniak, Piotr Szkodziak, Marek J Kudla, Krzysztof Pyra, Tomasz Paszkowski
OBJECTIVES: To assess whether strain elastography may be used to visualize the different stiffness of endometrial polyps and submucosal fibroids. METHODS: We conducted a prospective monocentric single-operator study on diagnostic accuracy. Patients who qualified for hysteroscopy because of suspected endometrial polyps and submucosal fibroids were included. Before the procedure, all patients underwent routine sonographic and power Doppler examinations. Additionally, the stiffness of intrauterine lesions was assessed by strain elastography...
September 14, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
Muhammed Afsal, Veena Chowdhury, Anjali Prakash, Sapna Singh, Neera Chowdhury
PURPOSE: Traditionally, peripheral nerve lesions are diagnosed on the basis of clinical history, physical examination, and electrophysiological studies, and the role of imaging studies has been limited. The purpose of the study was to assess the usefulness of sonography in diagnosing peripheral nerve lesions. MATERIALS AND METHODS: Thirty adult patients with peripheral nerve lesion/s and 30 healthy adult volunteers were included in the study, and sonography of the relevant peripheral nerve/s was done...
September 2016: Neurology India
Haidong Cai, Yu Qiao, Xiao Huang, Ming Sun, Qiong Luo, Xueyu Yuan, Yuehua Yang, Weiqing Mao, Zhongwei Lv
OBJECTIVE: In the initial assessment of thyroid nodules, thyrotropin (TSH) has very low sensitivity for assessing functional thyroid nodules (FTNs). The false negativity in FTNs and the false positivity in non-FTNs misinterpreted by TSH will raise unnecessary assessment costs. Therefore, the aim of this study is to explore the values of the TSH and color flow Doppler sonography (CFDS) combined strategies in reducing the unnecessary assessment costs. METHODS: 2383 patients with thyroid nodules were retrospectively analyzed, including 107 FTNs and 2276 non-FTNs...
September 13, 2016: Annals of Nuclear Medicine
Mihaela Elena Marina, Carolina Solomon, Sorana-Daniela Bolboaca, Corina Bocsa, Carmen Mihaela Mihu, Alexandru Dumitru Tătaru
AIM: To evaluate the morphostructural aspects and nail vascularity in the nail unit of patients with psoriasis, and to evaluate whether there are differences among psoriatic patients with and without nail involvement. MATERIAL AND METHODS: Nail plates and nail bed changes, nail fold vessel resistance index (NVRI), power and color Doppler blood flow appearances were investigated in 23 patients with moderate-to-severe psoriasis, with and without nail involvement, and compared to those of 11 healthy participants...
September 2016: Medical Ultrasonography
Mittul Gulati, Suzanne L Palmer, Michael Y Im, Hossein Jadvar, Yasir A Qazi, Umer Fazli, Edward G Grant
PURPOSE: This study aims to determine a velocity threshold in the main renal vein (MRV) of renal transplants and evaluate the cause and clinical significance of elevated velocity. METHODS: Maximum MRV velocity from 331 consecutive renal transplant Doppler ultrasounds in 170 patients was recorded. A priori, twice the median MRV velocity was selected as the threshold for elevation. Ultrasounds were divided into "early" and "late" periods based on time after transplantation...
August 26, 2016: Clinical Imaging
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