Device and method for real-time 3d sonography

Details Device and method for real-time 3d sonography Device and method for real-time 3d sonography

G - Physics

01

S

G01S 15/87 (2006.01) G01S 15/89 (2006.01) G03B 42/06 (2006.01)

Patent

CA 2366534

The invention relates to a device and a method for real-time 3D sonography. The inventive device comprises an ultrasound head, a signal processor and a display. The ultrasound head consists of at least one transmitter and at least three receivers independent therefrom. The positions of the receivers to the transmitters is known. The inventive device is characterised in that a signal processor consists of a signal generator for producing a transmission signal with any modulation function. The signal processor also consists of a correlator on each receiver which is connected to the signal generator respectively, a calculating unit for determining the paths of the transmission signal via the reflecting structure and to the receivers on each correlator and a calculating unit for determining the space co-ordinates of the reflecting structure, whereby each calculating unit is connected to the space co-ordinates for determining the paths of the transmission signal via the reflecting structure and to the receivers.

L'invention concerne un procédé et un dispositif d'échographie 3D en temps réel. Le dispositif comprend une tête à ultrasons, une unité de traitement de signaux et un dispositif d'affichage. La tête à ultrasons comprend au moins un émetteur et au moins trois récepteurs, séparés dudit émetteur, dont la position par rapport à ce dernier est connue. L'unité de traitement de signaux comprend un générateur de signaux, qui génère un signal d'émission possédant n'importe quelle fonction de modulation; un corrélateur, connecté à chaque récepteur et relié au générateur de signaux; une unité de calcul, qui détermine les trajets du signal d'émission via la structure réfléchissante jusqu'aux récepteurs de chaque corrélateur; et une unité de calcul, qui détermine les coordonnées spatiales de la structure réfléchissante et à laquelle sont reliées toutes les unités de calcul déterminant lesdits trajets du signal d'émission.

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