- 专利标题: Analysis of mitral regurgitation by ultrasonic imaging
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申请号: US13994794申请日: 2011-12-16
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公开(公告)号: US10674993B2公开(公告)日: 2020-06-09
- 发明人: Qifeng Wei , Karl Thiele , Ajit Yoganathan , Choon-Hwai Yap
- 申请人: Qifeng Wei , Karl Thiele , Ajit Yoganathan , Choon-Hwai Yap
- 申请人地址: NL Eindhoven US GA Atlanta
- 专利权人: KONINKLIJKE PHILIPS N.V.,GEORGIA TECH RESEARCH
- 当前专利权人: KONINKLIJKE PHILIPS N.V.,GEORGIA TECH RESEARCH
- 当前专利权人地址: NL Eindhoven US GA Atlanta
- 国际申请: PCT/IB2011/055739 WO 20111216
- 国际公布: WO2012/085797 WO 20120628
- 主分类号: A61B8/06
- IPC分类号: A61B8/06 ; G01S15/89 ; A61B8/13 ; A61B8/08
摘要:
An ultrasonic diagnostic imaging system is described which quantifies regurgitant flow through a mitral valve. A flow quantification processor (34) in the ultrasound system produces a mathematical model of a flow velocity field proximal to a regurgitant orifice. The velocity field model produces values of velocity vectors directed toward the regurgitant orifice. These modeled values are modified for the effects of ultrasound physics and ultrasound system operation to produce expected velocity values. The expected velocity values are compared with actual Doppler velocities measured by the ultrasound system, and the differences accumulated to a mean square error which is used to adjust parameters of the model such as the orifice location and flow velocities. When this iterative processing converges with a desired comparison, parameters derived from the finally adjusted model are used to calculate the true orifice location, flow rate, and volume flow.
公开/授权文献
- US20130274606A1 ANALYSIS OF MITRAL REGURGITATION BY ULTRASONIC IMAGING 公开/授权日:2013-10-17