ANALYSIS OF MITRAL REGURGITATION BY ULTRASONIC IMA

专利名称：ANALYSIS OF MITRAL REGURGITATION BY

ULTRASONIC IMAGING

发明人：WEI, Qifeng,THIELE, Karl,YOGANATHAN,

Ajit,YAP, Choon Hwai

申请号：EP11811389.3申请日：20111216公开号：EP2654570B1公开日：20170906

摘要：An ultrasonic diagnostic imaging system is described which quantifiesregurgitant flow through a mitral valve. A flow quantification processor (34) in theultrasound system produces a mathematical model of a flow velocity field proximal to aregurgitant orifice. The velocity field model produces values of velocity vectors directedtoward the regurgitant orifice. These modeled values are modified for the effects ofultrasound physics and ultrasound system operation to produce expected velocityvalues. The expected velocity values are compared with actual Doppler velocitiesmeasured by the ultrasound system, and the differences accumulated to a mean squareerror which is used to adjust parameters of the model such as the orifice location andflow velocities. When this iterative processing converges with a desired comparison,parameters derived from the finally adjusted model are used to calculate the true orificelocation, flow rate, and volume flow.

申请人：Koninklijke Philips N.V.

代理机构：Steffen, Thomas

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