【摘 要】
：
Background, Motivation and Objective Flow Mediated Dilation (FMD) is widely used to assess the endothelial function by ultrasound. Ideally, both the brachial artery wall shear stress (stimulus) and di
【机 构】
：
Information Engineering Department, University of Florence, Firenze, Italy
论文部分内容阅读
Background, Motivation and Objective Flow Mediated Dilation (FMD) is widely used to assess the endothelial function by ultrasound. Ideally, both the brachial artery wall shear stress (stimulus) and diameter change (effect) shall be estimated and monitored for 10 minutes, while blood flow is restricted by a cuff and then suddenly released. An inherent difficulty of the method is maintaining the linear array probe aligned with the artery over such a long time. The problem is here faced by an integrated hardware/software approach that displays in realtime both spatial velocity profiles and diameter changes, and acquires raw data all over the exam.
其他文献
假性静脉瘤常见于外伤或突发用力后血管内压力升高导致静脉血管壁破裂,血流涌入周围疏松的组织形成局限性血肿,血肿周围被纤维组织所包裹,且与静脉血管存在交通口,形成假性静脉瘤.颈部静脉血管病变较少见,常见的有颈静脉扩张症,颈外静脉假性静脉瘤比较罕见.我院于2012年5月收治经彩色多普勒超声(彩超)诊断为颈外静脉假性静脉瘤1例,并经术后病理证实.现将其临床诊治经过报告如下.
The present study was undertaken to investigate the role of p38 MAPK on the upregulation of GLT-1 induced by sulbactam during the mimic ischemic neuronal protection by neuron-astrocyte co-culture and
AIM:To address whether inflammation mediated by NF-κB activation is involved in the prevalence of anxiety-like behavior in hypoxic pulmonary artery hypertension(HPAH) rats and to investigate the under
High-fat diet(HFD) treatment as little as 3 d induced fatty liver,insulin resistance and adipose inflammation.n3 PUFAs and their metabolites eicosanoids mediate protective effects on several metabolic
The current study aims to explore the signaling pathway involved in hyperhomocysteinemia(HHcy)-induced hepatic steatosis.First,we performed a meta-analysis involving 2 057 subjects and revealed that p
目的:研究载脂蛋白A-Ⅰ模拟肽Reverse-D-4F(Rev-D4F)对高脂饮食C57BL/6J 小鼠内皮祖细胞(EPCs)动员和EPCs 功能的影响.方法:6 周龄C57 小鼠分为正常饮食、正常饮食并注射Rev-D4F、高脂饮食和高脂饮食并注射Rev-D4F 四组.流式细胞术等检测外周血细胞亚群和细胞因子的数量;免疫荧光法测定Sca-1、c-Kit 等的表达;MTT 等方法检测EPCs 的增殖
Background, Motivation and Objective Magnetomotive ultrasound (MMUS) imaging is a method that enables the use of superparamagnetic iron oxide nanoparticles (SPIO NP) as an ultrasound contrast agent. I
Background, Motivation and Objective Traditional ultrasound imagers suffer from a large data rate between their analog to digital converter (ADC) front-end and digital beamforming backend. This high a
Background, Motivation and Objective In quantitative echocardiography, a robust and accurate automatic segmentation of the left ventricle (LV) is important. Poor image quality and the rapid motion of
Background, Motivation and Objective Coded excitation can improve the signal-to-noise ratio (SNR) in medical ultrasound imaging.