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

Claim 0:
1. An ultrasound diagnostic apparatus that renders a puncture needle configured to be inserted into a subject in an ultrasound image, the ultrasound diagnostic apparatus comprising:
a head-mounted display that is configured to be mounted on a head of a user and has a camera unit configured to acquire a view image obtained by imaging a field of view in front of the user; and
a processor configured to:
acquire an actual total length of the puncture needle not inserted into the subject by reading a length information recorded on a length information recording member from a first view image including the length information recording member acquired by the camera unit, where the length information represents the actual total length of the puncture needle and the length information recording member is provided separately from the puncture needle,
recognize the puncture needle by performing image analysis on a second view image including the whole of the puncture needle not inserted into the subject acquired by the camera unit to calculate a total length of the puncture needle on the second view image,
acquire 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,
perform image analysis on a third view image including the puncture needle that is partly inserted into the subject acquired by the camera unit 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
estimate 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.