A method for planning the radiation therapy of a patient and ct - a system for this purpose and for the production of ct - receptacles

摘要

A method for planning a radiation therapy of a patient in the region of the thorax, wherein for the optimized irradiation of a diseased region, in most cases of a tumor, the position and expansion of this region and of the patient is determined by computer tomography images, then on the basis of this position data, an irradiation distribution is selected as effective as possible specific dose load for the diseased region and as low as possible a specific dose load for the rest of the fabric of the patient, characterized in that the production of the computer tomography images at the due to breathing cyclically moving lung is carried out, in which motion information from projection data of the ct ''s itself and at least two different removed selectively cycle phases be represented.