This medical imaging apparatus is provided with: a bathtub for housing a test object, which is at least a part of the body of a testee； a measurement device that is provided so as to be movable in a prescribed direction, that irradiates the interior of the bathtub with radiation waves, and that has a group of elements for receiving scattered radiation waves； and a control unit which causes the measurement device to take a measurement, in the case when at least one of the position of the test object within a plane orthogonal to the prescribed direction, the position of the test object in the prescribed direction, and the continuity of data measured by the measurement device, satisfies a predetermined condition. Because of this configuration, the present invention is able to acquire data that encompasses the entirety of a site subject to measurement.
