Non-invasive in-vitro tumor positioning system and method by fixing mark points

Abstract

The invention relates to a non-invasive in-vitro tumor positioning system and method by fixing mark points. A concept of time is introduced based on the three-dimensional radiation technology. Displacement errors of movement of an anatomical structure in a treatment process and movement of the anatomical structure among every-time treatment processes are fully considered, and the displacement errors include situations in the aspect of change of radiation dose distribution and influence on a treatment plane due to respiratory movement, setup errors, target area contraction and the like. Real-time monitoring can be performed on cancers and health organs by utilizing various advanced imaging devices before treatment of patients or during treatment of the patients, and treatment conditions can be adjusted according to changes of the positions of the organs to enable an irradiation filed to tightly follow a target area. Therefore, accurate treatment can be achieved actually. Generally speaking, the mark points are placed through denture when the cancers in the head or the neck are positioned. Due to the fact that the denture is fully meshed with patients' teeth, the positions of the mark points are firm.

Description

technical field [0001] The invention relates to a tumor localization system and a localization method, in particular to a tumor localization system and a localization method which reduce displacement errors by positioning mark points. Background technique [0002] Tumor has increasingly become the biggest threat to people's health in modern society. With the development of science and technology, tumor treatment technology has also made great progress. Because most of the tumors are located in the body, it is still difficult to accurately locate the tumor. Since the skin on the surface of the body is easy to move, there is a relatively large error in positioning only through the skin surface. In the prior art, the external device is usually fixed on the body for positioning, but this will bring great pain to the patient. After the patient takes a CT image for tumor location, the treatment system usually formulates a treatment plan based on the location of the tumor in the ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is to construct a tumor positioning system and positioning method to overcome the technical problems of inaccurate positioning and relatively large positioning errors affecting the treatment effect in the process of tumor positioning in the prior art

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