发明名称 |
INTRAVASCULAR ULTRASONIC IMAGE ANALYSIS USING ACTIVE CONTOUR METHOD |
摘要 |
An intravascular ultrasound (IVUS) analysis system and method is provided which determines luminal and medial-adventitial boundaries of a blood vessel. Ultrasonic data is acquired by a rotating transducer mounted to a tip of a catheter which is inserted into the blood vessel. An intravascular image is reconstructed from the ultrasound data. To determine the luminal boundary of a vessel, a user selects boundary points on the image believed to be locations of the luminal boundary. A boundary contour is generated based on the boundary points. The boundary contour is then optimized by adjusting the boundary points based on a radially determined edge of the luminal boundary performed on the image in polar format. Once the final luminal boundary contour is generated, the process is repeated to determine the medial-adventitial boundary contour. With the contour data, properties of the blood vessel are analyzed including determining the area of the lumen and percent of occlusion caused by plaque. |
申请公布号 |
EP1198200(B1) |
申请公布日期 |
2008.03.19 |
申请号 |
EP20000941653 |
申请日期 |
2000.06.22 |
申请人 |
THE CLEVELAND CLINIC FOUNDATION |
发明人 |
KLINGENSMITH, JON D.;VINCE, DAVID GEOFFREY;SHEKHAR, RAJ |
分类号 |
A61B8/00;A61B8/12;A61B5/107;A61B8/08;A61K35/00;G06K9/00;G06K9/64;G06T1/00;G06T5/00;G06T7/60 |
主分类号 |
A61B8/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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