To provide a muscle power evaluation system by an A-mode system to solve an issue that display of only a line segment lacks reproducibility and weak visibility in a muscle power evaluation system by the A-mode system highly evaluated in possibility of cost reducing and lightening.
When the inside of a human body is observed using an ultrasonic probe in an ultrasonic A-mode system, evaluation and observation of the situation produced inside a human body are enabled in pixel units by: leaving the variation details in lines of an ultrasonic image displayed in single lines onto a screen of a personal computer; after a predetermined time elapses, the displayed image is stored in a memory medium of the personal computer as original image data; then, a newly obtained image is stored in the memory medium of the personal computer as a variation image after a predetermined time by varying a state of the subject; and then, producing a difference image obtained by removing data matching the part left as the original image from the image data left as the variation image.
TANIZAWA TOSHITSUGU
MIYAMOTO KENSAKU
