Abstract: A medical image processing device according to an embodiment has a first image acquirer, a second image acquirer, a shifter, and a display controller. The first image acquirer acquires a first three-dimensional fluoroscopic image that is a three-dimensional fluoroscopic image of a patient captured in a patient treatment planning stage. The second image acquirer acquires a second three-dimensional fluoroscopic image that is a three-dimensional fluoroscopic image of the patient captured in a patient treatment stage. The shifter adds a predetermined amount to a photographing center position of the second three-dimensional fluoroscopic image to shift a display center position of the second three-dimensional fluoroscopic image.

Abstract: A medical image processing device according to an embodiment has a first image acquirer, a second image acquirer, a 3D-3D positioning executer, and a display controller. The first image acquirer acquires a first three-dimensional fluoroscopic image that is a three-dimensional fluoroscopic image of a patient. The second image acquirer acquires a second three-dimensional fluoroscopic image that is a three-dimensional fluoroscopic image of the patient. The 3D-3D positioning executer calculates a first shift amount between the first three-dimensional fluoroscopic image and the second three-dimensional fluoroscopic image. The display controller causes the display device to display a first DRR image generated from the second three-dimensional fluoroscopic image corrected based on the first shift amount, and a two-dimensional fluoroscopic image of the patient.

Abstract: According to one embodiment, a radiotherapy system comprising: a radioactive-ray irradiation apparatus configured to irradiate an irradiation target existing at an irradiation position with therapeutic radioactive rays; a 3D image acquisition apparatus configured to acquire a 3D image of the irradiation target at a position different from the irradiation position; a treatment table on which the irradiation target is placed; a treatment-table controller configured to control a position of the treatment table; and a memory configured to store the position of the treatment table for acquiring the 3D image as an imaging position.