Patent ID: 11925504
Assignee: FUJIFILM CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 12:
13. A method of controlling an ultrasound diagnostic apparatus that renders a puncture needle configured to be inserted into a subject in an ultrasound image, the method comprising:
acquiring a first view image obtained by imaging a field of view in front of a user including a length information recording member recording a length information by a head-mounted display that is configured to be mounted on a head of the user and has a camera unit, where the length information represents an actual total length of the puncture needle and the length information recording member is provided separately from the puncture needle;
acquiring the actual total length of the puncture needle not inserted into the subject by reading the length information recorded on the length information recording member from the first view image;
acquiring a second view image including the whole of the puncture needle not inserted into the subject by the head-mounted display;
recognizing the puncture needle by performing image analysis on the second view image to calculate a total length of the puncture needle on the second view image;
acquiring a correspondence relationship between the actual total length of the puncture needle and the total length of the puncture needle on the second view image;
acquiring a third view image including the puncture needle that is partly inserted into the subject by the head-mounted display;
performing image analysis in the third view image to calculate an image length of a part of the puncture needle that is not inserted into the subject in the third view image; and
estimating an actual length of an imaged portion of the puncture needle in the third view image based on the image length and the correspondence relationship.