An ultrasound diagnostic apparatus includes: an ultrasound probe； an imaging unit that transmits and receives an ultrasound beam to and from a subject using the ultrasound probe and converts a received signal output from the ultrasound probe into an image to generate an ultrasound image of the subject, according to set imaging conditions； a part determination unit that determines an imaging part of the subject using the ultrasound image generated by the imaging unit； a determination result storage unit that stores determination results corresponding to a plurality of frames obtained by the part determination unit； and a determination result integration unit that integrates the determination results corresponding to the plurality of frames stored in the determination result storage unit and outputs an integrated determination result.
