Radiation treatment system based on four-dimensional single-source gamma knife

Abstract

The invention provides a radiation treatment system based on a four-dimensional single-source gamma knife. The system includes a radiation treatment planning system, an intelligent tracking system, athree-dimensional numerical control treatment bed, a robot system, a radiation source auxiliary treatment system, an integrated control system, a three-dimensional double-digital X-ray perspective system, the three-dimensional numerical control treatment bed, the robot system, the intelligent tracking system, the three-dimensional double-digital X-ray perspective system, the radiation source and the auxiliary treatment system are all connected with the integrated control system and the radiation treatment planning system; and the radiation treatment system is used for performing instant focustracking on the 360-degree focusing projection by virtue of a collimation intensity modulated gamma ray beam which is emitted by the radiation source at the arm end of the robot system, so that the focal point obtains several times of the radiation dose of the tissues and organs around the focal point, and the dose outside the focal boundary is reduced by a cliff type, the focal tissue cells generate a radiation biological effect to occur necrosis, and a radiation treatment effect similar to surgical resection is generated.

Description

technical field [0001] The invention belongs to the field of medical radiosurgery treatment, and in particular relates to a radiotherapy system based on a four-dimensional single-source gamma knife. Background technique [0002] Radiation therapy is one of the main treatments for cancer. The biggest problem with the existing radiotherapy equipment is the low level of intelligence, the low cure rate in one treatment, and the inability to cure the primary cancer and multiple metastatic cancers at the same time. The skin-to-focal dose ratio is high, the side effects are large, and serious complications occur frequently. [0003] Radiation therapy equipment currently used in clinics: medical electron linear accelerator, proton heavy ion accelerator, afterloading therapy machine, X-ray therapy machine, 60 Co treatment machine, 60 Co source stereotactic therapy machine (γ knife), etc., the common defects of the above-mentioned existing equipment are: 1. Large irradiation field, ...

AI Technical Summary

Problems solved by technology

The biggest problem with existing radiotherapy equipment is the low degree of intelligence, low cure rate in one treatment, and inability to cure primary cancer and multiple metastatic cancers at the same time, high skin-to-focus dose ratio, large side effects, and frequent serious complications

[0003] Radiation therapy equipment currently used in clinics: medical electron linear accelerator, proton heavy ion accelerator, afterloading therapy machine, X-ray therapy machine, 60 Co treatment machine, 60 Co source stereotactic therapy machine (γ knife), etc., the common defects of the above-mentioned existing equipment are: 1. Large irradiation field, clockwise / counterclockwise rotating irradiation field in a single plane, and spiral irradiation field along the longitudinal axis of the body; 2. The dose ratio of the scorched skin is low, the dose of the surrounding organs is high, the damage is serious, and the systemic side effects are serious; 3. The degree of intelligence is low and the operation is cumbersome, and its scope of application and treatment accuracy have certain defects, which affects popularization and use; 4. Price Both are very expensive and greatly affect the popularization of use

At the same time, 60Co source stereotaxic therapy machine (γ-knife): it can only treat head tumors, it is equipped with 201 (or 197) cobalt sources, and the cost of the radiation source alone is very high

Irradiation from different sources isocentric and equal dose without difference, tissue and organ damage around the focal point is inevitable; 60 Co source body spiral treatment machine (spiral gamma knife): use 30 or 18 radiation sources, spiral irradiation along the central axis of the focus, each source isocenter, equal dose without difference irradiation, tissue and organ damage around the focus is inevitable; 60Co Therapeutic machine: use one radioactive source, and can only adjust the machine head and the direction of the incident beam on the frontal plane to project a large fixed irradiation field on the lesion. The treatment makes the focal skin dose ratio less than one, in order to avoid damage to organs and tissues outside the focus Multiple irradiations are required, the course of treatment is long, the treatment complications are serious, and the treatment benefits are small; medical electron linear accelerator, proton heavy ion accelerator: the equipment structure is complex and expensive

After-installation therapy machines and X-ray therapy machines have poor safety and large side effects, and are almost eliminated; tumors will move with human breathing or heartbeat, so the radiation area must have a larger range to ensure that the tumor can receive sufficient radiation dose However, this increases the radiation damage to the surrounding organ tissue or sensitive cell healthy tissue, resulting in unforeseen complications

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