System and method for ultrasound harmonic imaging

A - Human Necessities – 61 – B

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A61B 8/14 (2006.01)

Patent

CA 2671708

A system includes at least one transducer configured to transmit at least one ultrasound pulse into a region of interest (ROI) of a patient. The pulse has at least a first frequency and propagates through a bodily structure in the ROI. The system further includes at least one receiver configured to receive at least one echo signal corresponding to the pulse. The echo signal includes the first frequency and at least one harmonic multiple of the first frequency. The system further includes a processor configured to automatically determine, from the at least one harmonic multiple, at least one boundary of the bodily structure. In an embodiment, the processor is configured to automatically determine, from the at least one harmonic multiple, an amount of fluid within the bodily structure.

L'invention concerne un système comprenant au moins un transducteur configuré pour émettre au moins une impulsion ultrasonore dans une région d'intérêt (ROI) d'un patient. L'impulsion a au moins une première fréquence et se propage à travers une structure corporelle dans la ROI. Le système comprend en outre au moins un récepteur configuré pour recevoir au moins un signal d'écho correspondant à l'impulsion. Le signal d'écho comprend la première fréquence et au moins un multiple harmonique de la première fréquence. Le système comprend en outre un processeur configuré pour déterminer automatiquement, à partir d'au moins un multiple harmonique, au moins une limite de la structure corporelle. Dans un mode de réalisation, le processeur est configuré pour déterminer automatiquement, à partir d'au moins un multiple harmonique, une quantité de fluide dans la structure corporelle.

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