Title:
フロー信号を抽出する超音波イメージング方法
Document Type and Number:
Japanese Patent JP2008515521
Kind Code:
A
Abstract:
The present invention relates to a method of extracting a flow signal from echographic signals received from a region of interest comprising moving tissues and flowing fluids. The method comprises a step of calculating Doppler signals from said echographic signals within a small number of time samples, a step of separating first and second estimated Doppler signals from said calculated Doppler signals, a step of calculating a linear combination of said first and second estimated Doppler signals which locally maximizes a temporal coherence, a step of deriving a third and fourth estimated Doppler signals from first and second maxima of said temporal coherence, a step of classifying said third and fourth estimated Doppler signals into an estimated Doppler clutter and flow components. The method finally comprises a step of forming a motion image of the flowing fluids from said estimated Doppler flow component.
Inventors:
Bonneuf, Odil
Application Number:
JP2007535316A
Publication Date:
May 15, 2008
Filing Date:
October 06, 2005
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
A61B8/06; F15B7/06; F15B15/02; F15B15/20; F16D23/12; F16D29/00; F16D48/02
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Shinsuke Onuki
Tadashige Ito