1. A medical image processing apparatus comprising: an extraction unit configured to extract an image region having an image element value larger than a predetermined image element value from a first image of at least one time phase collected in first imaging and second images of a plurality of time phases collected in second imaging; a calculation unit to calculate a feature quantity that fluctuates in accordance with motion of the image region for the first image of at least the one time phase and the second images of the time phases; and a selection unit configured to select the first image and the second image having similar image features of the image region based on the feature quantity from among the first image of at least the one time phase and the second images of the time phases.