Using pulsed-wave ultrasonography for determining an...

Details Using pulsed-wave ultrasonography for determining an... Using pulsed-wave ultrasonography for determining an...

2006-01-25

2011-11-22

Chen, Tse (Department: 3777)

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

C600S453000, C600S454000, C600S455000, C600S456000, C600S457000

Reexamination Certificate

active

08062223

ABSTRACT:
Using pulsed-wave (PW) ultrasonography for determining an aliasing-free radial velocity spectrum of matter moving in a region. Includes: transmitting into the region a plurality of pulse trains of sound waves at two or more different pulse repetition frequencies; spectrally analyzing each pulse train, for evaluating a Doppler frequency spectrum associated with each pulse train; combining frequency components of Doppler frequency spectrum of each pulse train, for obtaining aliasing-free instantaneous Doppler frequency spectrum for the region; using Doppler effect for translating aliasing-free frequency spectrum to aliasing-free radial velocity spectrum. Implementable using pulsed-wave Doppler (PWD), color flow Doppler (CFD), tissue Doppler imaging (TDI), or pulsed-wave (PW) ultrasonography. Applicable to liquid or/and solid forms of matter, moving in a two- or three-dimensional region. Matter is any substance or material, composed of organics or/and inorganics, which is part of a non-living object, or, part of a human or animal subject.

REFERENCES:
patent: 5027122 (1991-06-01), Wieler
patent: 2004/0102706 (2004-05-01), Christopher et al.
patent: WO 2005/065028 (2005-07-01), None
International Preliminary Report on Patentability Dated Aug. 9, 2007 From the International Bureau of WIPO Re.: Application No. PCT/IL2006/000105.

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