Real time ultrasound endocardial displacement display

Details Real time ultrasound endocardial displacement display Real time ultrasound endocardial displacement display

1995-09-22

1996-07-09

Jaworski, Francis

Surgery

Truss

Pad

H61B 800

Patent

active

055335101

ABSTRACT:
An ultrasound display apparatus provides a two-dimensional display of a fluid filled cavity and surrounding wall tissue in the form of a sequence of pixel image frames that are shown on a display screen. The apparatus includes circuitry for indicating wall tissue displacements on the screen on a frame by frame basis. The apparatus includes a pixel classification circuit for classifying pixels in each pixel image frame into two types, i.e., tissue or fluid. A frame comparator determines which pixels change classification from one to another type as between a pair of succeeding frames. A color assignment circuit assigns to changed-type pixels in a frame, a color value which causes the changed pixels to be readily differentiated by a viewing user. Different color values are used from frame to frame on both ventricular expansion and contraction cycles.

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