【摘 要】
：
Background, Motivation and Objective In color flow imaging (CFI), achieving robust flow detection in the presence of tissue motion remains a long-standing challenge to be properly addressed. Key to ta
【机 构】
：
Medical Engineering Program, University of Hong Kong, Pokfulam, Hong Kong
论文部分内容阅读
Background, Motivation and Objective In color flow imaging (CFI), achieving robust flow detection in the presence of tissue motion remains a long-standing challenge to be properly addressed. Key to tackling this problem is the effective suppression of slow-time clutter originating from tissue echoes that contain non-zero frequency contents whenever tissue displaces during data acquisition. For some time, eigen-based clutter filtering has been tipped as an emerging solution, and it works by adaptively suppressing tissue clutter based on principal component analysis. However, the field is distinctly short of data on how much gain in flow detection sensitivity and specificity can be achieved with the use of eigen-filters.
其他文献
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.
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
Background, Motivation and Objective During neurosurgery, intraoperative imaging can serve to provide feedback on cerebrovascular hemodynamics and help monitor procedures such as the placement of flow
Background, Motivation and Objective The peak blood velocity is a parameter of high medical interest used, for example, in the determination of carotid stenosis grade. The standard approach, which typ
Background, Motivation and Objective Golay Complementary Sequence (GCS) can compensate the high attenuation of high-frequency ultrasound by elevating signal level with low range side lobe and low impl