【摘 要】
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Background, Motivation and Objective Contrast-based arterial flow vector distribution (FVD) has been deeply studied to underpin insight into cardiovascular disease diagnosis, particularly in arterial
【机 构】
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The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Bio
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Background, Motivation and Objective Contrast-based arterial flow vector distribution (FVD) has been deeply studied to underpin insight into cardiovascular disease diagnosis, particularly in arterial stenosis. However, discontinuous microbubble (MB) flow in the imaging plane is difficult to be accurately tracked by conventional optical flow method because of the disordered and rapid motions of MBs and their non-real-time captured echoes. Although such echoes can be real-time acquired by ultrasound contrast plane wave imaging (UCPI), it is limited by low contrast-to-tissue ratio (CTR) and detection sensitivity of MBs, especially, near arterial wall. The objective of this study was to accurately obtain the transient FVD of MBs in arterial stenosis by modified optical flow method based on UCPI images with high CTR and sensitivity.
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