A control method of an ultrasound diagnostic apparatus, the control method comprising:
- capturing an optical image including a wound region located on a body surface of a subject and an ultrasound probe having a predetermined size;
- generating a plurality of ultrasound images for the wound region by performing transmission and reception of an ultrasound beam using the ultrasound probe;
- detecting positional information of the ultrasound probe during generating the plurality of ultrasound images by using a sensor;
- recognizing a cross section of an abnormal portion, located inside the subject, in each of the plurality of ultrasound images by analyzing each of the plurality of ultrasound images;
- displaying the optical image and the plurality of ultrasound images;
- extracting the wound region and the ultrasound probe from the optical image;
- calculating a size of the wound region by:
- calculating a length per pixel in the optical image by comparing the predetermined size of the ultrasound probe with a measured pixel length of the extracted ultrasound probe,
- calculating a first pixel measurement line as a major axis diameter of the extracted wound region and calculating a second pixel measurement line as a minor axis diameter of the extracted wound region, and
- converting the major axis diameter and the minor axis diameter of the extracted wound region into the calculated size of the wound region,
- displaying the calculated size of the wound region on a monitor;
- detecting a contour shape of the abnormal portion viewed from a body surface side of the subject, based on the positional information of the ultrasound probe detected during generating the plurality of ultrasound images and the cross section of the abnormal portion recognized from each of the plurality of ultrasound images;
- performing registration processing of the detected contour shape of the abnormal portion and the optical image based on the positional information of the ultrasound probe detected during generating the plurality of ultrasound images;
- displaying the detected contour shape of the abnormal portion on the monitor superimposed on the optical image;
- calculating a size of the detected contour shape of the abnormal portion based on the comparing of the predetermined length per pixel in the ultrasound image with the detected contour shape determined by:
- calculating a third pixel measurement line as a major axis diameter of the detected contour shape and calculating a fourth pixel measurement line as a minor axis diameter of the detected contour shape, and
- converting the major axis diameter and the minor axis diameter of the detected contour shape into the calculated size of the detected contour shape, and
- displaying the calculated size and shape of the detected contour shape of the abnormal portion on the monitor superimposed on the optical image including the wound region, such that a user of the ultrasound diagnostic apparatus is able to view the wound region on the body surface of the subject together with the abnormal portion inside the subject.