| 摘要 |
Plural strain gauges which are folded lines defined by gauge end points and gauge middle points are set up every time phase using motion vector information of a tissue and a strain gauge image in which the strain gauges are overlapped at a corresponding position of an ultrasonic image at each time phase is generated and displayed. A rotation angle from a reference time phase is calculated, rotational difference information between the gauge end points is generated and displayed in a predetermined form for the respective gauge end points (and the gauge middle points if necessary). Accordingly, for example, by setting the gauge end points in an inner membrane and an outer membrane of a cardiac muscle and setting the gauge middle points in an intermediate membrane, quantitative information is generated such as the rotational difference between the inner and outer membranes in local regions of the cardiac muscle or in the global cardiac muscle or the rotational difference of the inner membrane and the outer membrane relative to the intermediate membrane.
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