ULTRASONIC DIAGNOSTIC APPARATUS AND ULTRASONIC DIAGNOSTIC METHOD

摘要

An ultrasonic diagnostic apparatus (100) that decides a type of a tumor contained in a specimen includes: an image forming unit (103) that forms an ultrasonic image corresponding to an echo signal received from the specimen after administration of a contrast medium; a feature value calculating unit (106) that classifies each of a plurality of pixel regions contained in a tumor region including the tumor in the ultrasonic image into a low-luminance region, or a high-luminance region having higher luminance than the luminance of the low-luminance region, and calculates, based on a difference between a variance at a position of the low-luminance region and a variance at a position of the high-luminance region, a ring level indicating a degree of a ring shape of an image of the tumor region, the ring shape in which a luminance value of a central portion is lower than a luminance value of a peripheral portion surrounding the central portion; and a type deciding unit (107) that decides the type of the tumor based on the ring level.

主权项

1. An ultrasonic diagnostic apparatus that decides a type of a tumor contained in a specimen, the apparatus comprising:
an image forming unit that forms an ultrasonic image corresponding to an echo signal received from the specimen after administration of a contrast medium; a feature value calculating unit that classifies each of a plurality of pixel regions contained in a tumor region including the tumor in the ultrasonic image into a low-luminance region, or a high-luminance region having higher luminance than the luminance of the low-luminance region, and calculates, based on a difference between a variance at a position of the low-luminance region and a variance at a position of the high-luminance region, a ring level indicating a degree of a ring shape of an image of the tumor region, the ring shape in which a luminance value of a central portion is lower than a luminance value of a peripheral portion surrounding the central portion; and a type deciding unit that decides the type of the tumor based on the ring level.