Optimization of the radiation therapy of a tumor

摘要

The present invention describes a device and a method for the optimized radiation therapy of a tumor in any one of the organs of the small pelvis or in the head - neck region with ultrasonic testing for determining the position of the organs and / or of the tumour tissue. The device comprises a peg-shaped, on a front face tapering outer sheath of ultra sound the current material and an ultrasonic sensor is located in it. According to the method according to the invention, the patient is supported on a support mechanism, then the device according to the invention into a bodily opening, for example the rectum is introduced, and an examination is carried out, on the basis of which the position of the tissue to be irradiated (= reference position) is determined and set up or an irradiation plan is adapted, and immediately before irradiation the beginning of the ultrasonic sensor either from the outer casing or moved out under a lead protection screen is moved, and then the irradiation is carried out, wherein during this at least the outer casing for fixing of the tumour tissue remains in the patient.