Medical image processing apparatus, treatment system, and medical image processing program

Abstract

A medical image processing apparatus includes a first image acquirer that acquires a plurality of first images of an object to be treated, each of the plurality of first images being captured by a radiographic imaging apparatus at a respective time of a plurality of times; a second image acquirer that acquires a second image of the object to be treated, the second image being captured by a radiographic imaging apparatus at a time different from the plurality of times when the plurality of first images are captured; a characteristic processor that determines a plurality of positions of a firstcharacteristic of the object to be treated from the plurality of first images, the characteristic processor that determines the position of a second characteristic corresponding to the first characteristic in the object to be treated from the second image; a calculator that establishes a first closed space including the plurality of positions of the first characteristic; and a determiner that determines whether or not the position of the second characteristic is within the first closed space, and the determiner that outputs a determination signal, based on a result of the determination.

Description

technical field [0001] Embodiments of the present invention relate to a medical image processing device, a treatment system, and a medical image processing program. Background technique [0002] Radiation therapy is a treatment method that irradiates a lesion in a patient, thereby destroying the lesion. In radiation therapy, the location of the lesion must be irradiated precisely. This is because normal tissue in the patient's body can be destroyed if it is irradiated with radio beams. Therefore, when radiotherapy is performed, computed tomography (CT) is performed in advance at the stage of treatment planning in order to obtain a three-dimensional grasp of the position of the lesion in the patient's body. Based on the grasped lesion location, the direction and intensity of radio beam irradiation can be planned so as to reduce the irradiation of normal tissues. In the subsequent treatment phase, the patient is positioned so as to match the position of the patient in the t...

AI Technical Summary

Problems solved by technology

However, with the method disclosed in Patent Reference 1, the condition in the patient's body is not monitored

Therefore, with the method disclosed in Patent Reference 1, it is not possible to follow a change in the position of a lesion caused by, for example, a change in the patient's heartbeat during treatment or movement of the patient's intestinal gas.

Thus, with the method disclosed in Patent Reference 1, there are cases where the reliability of anomaly detection is insufficient

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