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Comformable illumination of photon-beam radiant treatment

A radiotherapy and photon beam technology, which is applied in phototherapy, radiodiagnostic instruments, parts of surgical instruments, etc., can solve problems such as insufficient calculation efficiency of algorithms, large calculation errors, and affecting the efficiency of treating patients

Pending Publication Date: 2007-09-05
成都奇林科技有限责任公司
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Problems solved by technology

Convolution / Superposition is usually used in the world. Convolution / Superposition is to use the Monte Carlo method to calculate the dose distribution of a collision of pen beam photons in water in advance, and make a database. These data are called during application. The human body dose distribution information is obtained by calculating the collision dose distribution and making non-uniform corrections. Its disadvantages are: 1) The calculation efficiency of the algorithm is not high enough, especially in the case of intensity modulation, the calculation efficiency of the algorithm is not high, which is a prominent contradiction. Directly affect the efficiency of treating patients; 2) The calculation error is large in areas with large density changes

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  • Comformable illumination of photon-beam radiant treatment
  • Comformable illumination of photon-beam radiant treatment
  • Comformable illumination of photon-beam radiant treatment

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Embodiment Construction

[0029] A method of photon beam radiotherapy conformal irradiation according to the present invention is shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Fig. 8, and the method steps are:

[0030] (1), first apply CT technology to obtain the patient's density information, and then apply three-dimensional image reconstruction technology to the obtained patient's density information to reproduce the anatomical structure of the patient's tumor site and adjacent organs and tissues;

[0031] (2) Using electronic tools to help doctors determine and outline the tumor and its infiltrating area (target area) and critical organs, and clearly display the two-dimensional and three-dimensional images of the target area with computer graphics and image technology;

[0032] (3) Project the located tumor and its infiltrated area (target area) along the direction of the beam onto the reference section at the exit of the accelerator beam (photon beam or electron beam) to determ...

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Abstract

A shape-adapting irradiation method for the photon beam radiotherapy of tumor includes such steps as using CT technique to obtain the density information of patient, reproducing the tumor position and the anatomical structure of adjacent organ and tissue, displaying 2D image and 3D image of target region by computer imaging technique, projecting the tumor and its infiltrative region onto the cross-section of photon beam at the outlet of accelerator, arranging a matched multi-blade collimator or shielding lead part to said outlet, inputting the information about the energy spectrum and angle distribution of photon beam, calculating and evaluating the dosage of photon beam, and regulating said collimator.

Description

technical field [0001] The present invention relates to the developing new treatment technology in modern radiation therapy - conformal radiation therapy technology and intensity-modulated radiation therapy technology. In particular, it relates to a photon beam radiotherapy conformal irradiation method, and this precise radiotherapy technology is the current mainstream technology development direction of international radiotherapy. Background technique [0002] At present, in order to further improve the cure rate of radiation therapy and improve the quality of life of patients, the development of precise radiation therapy technology represented by conformal radiation therapy technology and intensity-modulated radiation therapy technology is the mainstream of current international radiation therapy technology. Both technologies require the development of accurate and fast high-energy photonic pencil beam algorithms. Although the Monte Carlo method can accurately calculate t...

Claims

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Application Information

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IPC IPC(8): A61B6/00A61B18/18A61N5/06
Inventor 罗正明勾成俊杨代伦吴章文
Owner 成都奇林科技有限责任公司
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