X-ray imaging apparatus and a medical image processing apparatus

X-ray imaging apparatus according to the embodiment includes an angle acquisition unit and an imaging unit. Angle acquisition unit acquires the tilt angle of the aorta of the subject in the reference image. The inclination angle of the photographing unit to the aorta, the aorta to the traveling direction of a horizontal or vertical manner, the angle of rotation, so that the X-ray image display. Further, the medical image processing apparatus according to the embodiment includes an angle acquisition unit and a display control unit. Angle acquisition unit acquires the tilt angle of the aorta of the subject in the reference image. The display control unit according to the inclination angle of the aorta, the aorta to the traveling direction becomes the horizontal direction of the way, vertically or with a predetermined way corresponding to the angular rotation, so that the X-ray image display.