Ultrasonic processes and circuits for carrying out those...

Details Ultrasonic processes and circuits for carrying out those... Ultrasonic processes and circuits for carrying out those...

G - Physics

01

N

G01N 29/06 (2006.01) A61B 8/00 (2006.01) G01N 29/34 (2006.01)

Patent

CA 2666047

A process for selective graphic representation and/or evaluation of the Doppler spectrum of objects limitedly resistant to sonic intensity, for example biological organs and tissues, by an ultrasonic process wherein a material is introduced in the examination area to be acoustically irradiated, nonlinear oscillations are produced in the examination area by irradiated ultrasonic waves and the signal is evaluated by an ultrasonic converter. Also, a circuit for carrying out the above process is disclosed.

Un processus permettant l'évaluation et/ou la représentation graphique sélective du spectre Doppler d'objets résistant de manière limitée à l'intensité sonique, par exemple des tissus et des organes biologiques, au moyen d'un processus ultrasonore où un matériau est introduit dans l'aire d'examen pour être irradié de façon acoustique, des oscillations non linéaires sont produites dans l'aire d'examen par des ondes ultrasonores irradiées, et le signal est évalué par un convertisseur ultrasonore. De plus, l'invention comprend un circuit pour l'exécution du processus susmentionné.

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