Title:
医用超音波撮像における小規模欠陥の検出
Document Type and Number:
Japanese Patent JP2006512129
Kind Code:
A
Abstract:
The invention relates to an ultrasonic medical imaging apparatus intended for analyzing an organic medium potentially including defects within a noisy structure. Ultrasound signals focused at a given depth according to M distinct successive excitations arc emitted and an image formation module makes it possible to obtain an image of said depth after reception of responses from the medium. The invention is such that the apparatus includes a module for using said responses for constructing a rectangular response matrix of dimension N*M, a coefficient Knm of which represents the response from the medium received by the transducer n following an excitation m, decomposing said response matrix into singular values, using the singular vectors corresponding to said singular values for locating singular zones corresponding to defects in the medium. Application: Ultrasonic apparatus particularly in the medical field.
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Inventors:
Prada, Clair
Cohen-Bakuri, Claude
Fink, Matthias
Entrekin, Robert Randall
Cohen-Bakuri, Claude
Fink, Matthias
Entrekin, Robert Randall
Application Number:
JP2004563458A
Publication Date:
April 13, 2006
Filing Date:
December 17, 2003
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
A61B8/00; A61B8/08; G01S15/89; G01S7/52
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Shinsuke Onuki
Tadashige Ito