Image-guided radiotherapy device

Abstract

The invention provides an image-guided radiotherapy device comprising a stand, an accelerating tube, a collimator, a treatment couch, an imaging screen and a computer system, wherein the accelerating tube and the imaging screen are installed on the stand oppositely for 180 degrees, the collimator is installed at the front end of the head of the accelerating tube, the treatment couch is installed outside the stand, the computer system is used for controlling the accelerating tube, the collimator, the treatment couch and the imaging screen; and the accelerating tube adopts a KV / MV homologous double-beam accelerating tube of which the working modes comprise a KV mode and an MV mode, wherein the KV mode generates KV level rays for imaging, and the MV mode generates MV level rays for treatment. The image-guided radiotherapy device is used for realizing high-quality image-guided radiotherapy.

Description

Technical field [0001] The invention relates to the technical field of radiotherapy, in particular to an image-guided radiotherapy device. Background technique [0002] With the continuous improvement of physics and biological science theories and the rapid development of radiotherapy technology, radiotherapy has become one of the three main treatment methods for tumors; its purpose is to increase the dose of the target area and reduce the radiation damage to the normal tissues around the target area. Continuously improve the local control rate of tumors, with the help of computer technology, imaging technology and the extensive collaboration of various disciplines in the medical field, to further improve the survival rate of patients and improve their quality of life. [0003] In recent years, with the rapid development of precise radiotherapy technology centered on precise positioning, precise planning and precise treatment, the overall efficacy of radiotherapy has been improved;...

AI Technical Summary

Problems solved by technology

[0009] This mode generally directly adopts an online image verification system composed of MV-level X-rays for treatment and digital imaging boards installed at the relative position of the treatment head; its advantage is that the imaging rays and treatment rays have the same source, so they also pass through the same head structure , the verification image can well reflect the patient's body position error, the relationship between the target area and surrounding organs and the treatment irradiation field, etc.; but because the MV-level rays used in it mainly have Compton scattering effect in human tissue, the bone structure The absorption difference from soft tissue is relatively small, and the tissue contrast and density resolution of the image are relatively poor, so its imaging effect is far worse than that of KV-level X-ray images, which also affects the quality of image-guided radiotherapy

Images