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Precise radiotherapy planning system

A radiation therapy and planning technology, applied in radiation therapy, therapy, X-ray/γ-ray/particle irradiation therapy, etc., to achieve the effect of improving positioning accuracy, fast positioning, and good consistency

Inactive Publication Date: 2008-02-13
成都奇林科技有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] As we all know, since it is impossible to measure the dose by implanting a detector in the patient's body during radiotherapy, the dose distribution in the patient's body can only be determined through complex theoretical calculations

Method used

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Experimental program
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Embodiment 1

[0197] Embodiment 1: The process of using photon beams to plan intensity-modulated radiation therapy for patients.

[0198] Step 1: Input the CT data of the patient. After rectifying multiple CT slices, automatic and semi-automatic delineation methods are used to quickly construct a three-dimensional display of the human body and organs. Doctors use the software tools of this system to delineate the range of tumors and critical organs. Figure 14 is the display of the CT slice and the range of the target area drawn by the doctor. Fig. 15 is a three-dimensional reconstruction of the stereoscopic display of the patient's head.

[0199] Step Two: Setting Up the Beam. First select the energy and number of photon beams from the computer interface, and the incident direction of each photon beam (determined by the frame angle and the nose angle). For intensity-modulated therapy, in order to obtain a better dose distribution, a larger number of photon beams is usually selected. In ...

Embodiment 2

[0204] Example 2: The process of applying electron beams to patients for conformal radiation therapy. The steps are:

[0205] Step 1: Input the CT data of the patient. After rectifying multiple CT slices, automatic and semi-automatic delineation methods are used to quickly construct a three-dimensional display of the human body and organs. Physicians use the system's software tools to delineate the extent of tumors and vital organs. Fig. 22 is the display of the CT slice and the range of the target area drawn by the doctor. Fig. 23 is a stereo display of the three-dimensional reconstruction.

[0206] Step Two: Setting Up the Beam. Select the energy and number of electron beams and the incident direction. In this case the doctor chose three electron beams. Figure 24 shows the incident directions of three 18 MeV electron beams for conformal irradiation on superficial tumors.

[0207] Step 3: call the electron beam dose calculation module to calculate the dose distribution...

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Abstract

The present invention discloses an accurate radiation treatment planning system, which mainly comprises a three-dimensional medical image reconstruction module for reconstruction of human organs and the tumor target area, a three-dimensional dose calculation module of high accuracy photon beam, a three-dimensional dose calculation module of high accuracy electron beam, a conventional radiation plan designing module of the photon beam and the electron beam, a conformal radiation designing module of the photon beam and the electron beam, a reverse plan scheme designing module focused on the photon beam treatment. The present invention independently resolves the main and key technology of the radiation treatment planning system. The present invention develops a highly accurate algorithm and a fast precise optimal method of the three-dimensional dose distribution in photon beam and the electron beam, which distributes in non-uniform human medium. The present invention greatly improves accuracy of the embarking dose in tumor target area in patient body. Because the dose calculation speed has been improved dramatically, the advanced conformal radiation treatment planning system and the treatment planning system focused on radiation are feasible for clinical application. The present invention brings important benefits for improving the radiation treatment effect and improving life quality of the patient.

Description

technical field [0001] The present invention relates to the radiotherapy technology for tumors, specifically to an accurate radiotherapy planning system for treating tumor diseases, including airborne function modules required by conformal and intensity-modulated radiotherapy techniques. Background technique [0002] Radiation therapy technology is one of the three main means of treating cancer (surgery, radiotherapy and chemotherapy), which is of great significance for improving human health and increasing human life expectancy. After a large number of investigations and studies by the International Commission on Radiation Units and Measurements (ICRU), the statistics of radiation therapy efficacy showed that the cure rate of radiation therapy was 12%, that of radiation therapy + surgery was 6%, that of surgery was 22%, and that of chemotherapy and others only 5%. Therefore, radiotherapy has become a very important technical means to treat cancer patients. Radiation thera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00A61B19/00A61N5/00G06F17/00G06Q50/00A61N5/10
Inventor 罗正明勾成俊吴章文杨代伦侯氢孙官清
Owner 成都奇林科技有限责任公司
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