Abstract: A medical image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to generate, from a medical image, a plurality of feature target regions for specifying a target of image segmentation. The processing circuitry is configured to specify a target region indicating the region in which the target is present, on a basis of the plurality of feature target regions. The processing circuitry is configured to perform, in the target region, the image segmentation on the target.

Abstract: A medical image processing apparatus according to the present embodiment includes processing circuitry. The processing circuitry extracts a registration target area corresponding to a registration target organ from an ultrasonic image by acquiring edges of the registration target organ from the ultrasonic image among a plurality of types of medical images including the registration target organ. The processing circuitry calculates the degree of deformation of a plurality of positions in the registration target area. The processing circuitry performs a rigid registration on the types of medical images on the basis of the degree of deformation for each position calculated at the positions and the similarity between the types of medical images at the positions.

Abstract: An ultrasound diagnostic apparatus according to an embodiment includes processing circuitry. The processing circuitry derives a predefined image evaluation parameter with respect to a plurality of two-dimensional ultrasound images obtained by an ultrasound probe. Based on the derivation results of the image evaluation parameter, the processing circuitry selects a two-dimensional ultrasound image for registration purpose from among the plurality of two-dimensional ultrasound images. The processing circuitry performs image registration of a three-dimensional medical image and the two-dimensional medical image for registration purpose.