According to one embodiment, there is provided an ultrasonic diagnostic apparatus Which comprises a volume data acquisition unit configured to acquire volume data by scanning a three-dimensional region including at least part of a fetus with an ultrasonic wave, a detection unit configured to detect NT data which corresponds to an NT region of the fetus and a longitudinal direction of the NT region with reference to an image which is generated by using the volume data and corresponds to a predetermined sagittal slice including the NT region, a measurement unit configured to measure thicknesses with respect to positions in the NT region and a line-of-sight direction with reference to the longitudinal direction and an image generation unit configured to generate an image indicating at least one of thicknesses of the NT region.
