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Three-dimensional dosage verification method of nuclear magnetism guidance radiation therapy based on MRI-Only

A radiation therapy and three-dimensional dose technology, applied in the application of nuclear technology and radiation therapy, can solve problems such as the inability to meet the requirements of nuclear magnetic guided radiation therapy dose verification, and achieve the effect of improving the effect and shortening the time

Inactive Publication Date: 2017-12-29
徐榭
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Problems solved by technology

Therefore, only relying on the only measurement methods at present can no longer meet the dose verification requirements of MRI-guided radiotherapy.

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  • Three-dimensional dosage verification method of nuclear magnetism guidance radiation therapy based on MRI-Only

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Embodiment Construction

[0045] In this embodiment, a three-dimensional dose verification method of MRI-Only-based MRI-guided radiotherapy is applied in the dose verification process of MRI-guided radiotherapy. The specific scheme is carried out in the following steps, see figure 1 :

[0046] Step 1. Select the radiotherapy image information of the patient to be verified and the radiotherapy plan of the corresponding patient;

[0047] Choose to verify the radiotherapy image information of the patient. The source of the image information can be the CT image of the CT scan, the MRI image scanned by the nuclear magnetic resonance apparatus, or the PET image scanned by the positron emission tomography apparatus;

[0048] Step 2, preparing and storing the gel dosimeter phantom and the calibration phantom;

[0049] Step 2.1, prepare the gel, and pour the gel into a mold container with the same shape as the patient’s treatment site selected above and multiple calibration molds to make a gel dosimeter phanto...

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Abstract

The present invention discloses a three-dimensional dosage verification method of nuclear magnetism guidance radiation therapy based on MRI-Only. The method comprises the following steps: selecting radiation therapy image information of a patient to be verified and a corresponding patient's radiation therapy plan, preparing and storing gel dosimeter phantom and a calibration phantom, scanning the gel dosimeter phantom to obtain the magnetic resonance imaging (MRI) images of a corresponding phantom, sending the magnetic resonance imaging (MRI) images of the corresponding phantom to a treatment plan system (TPS), irradiating and scanning the calibration phantom to obtain a calibration curve, making the radiation therapy plan of the gel dosimeter phantom, scanning the gel dosimeter phantom after irradiation, converting the images to an adsorbed dose graph, assessing results of measurement and calculation of the gel dosimeter phantom, and executing the patient's radiation therapy plan if the results of measurement and calculation of the gel dosimeter phantom accord with clinical assessment requirements. The three-dimensional dosage distribution of the nuclear magnetism guidance radiation therapy can be accurately measured and can be used for three-dimensional dosage verification to facilitate improvement of the radiation therapy effect.

Description

technical field [0001] The invention relates to a three-dimensional dose verification method for nuclear magnetic guided radiotherapy based on MRI-Only, which belongs to the field of application of nuclear technology and radiotherapy. Background technique [0002] Radiation therapy is one of the means of treating cancer patients. Due to the development of various factors such as computer technology, medical imaging technology, and radiotherapy technology, radiotherapy has entered a new era of image-guided high-precision radiotherapy. At present, many experts in the world believe that nuclear magnetic-guided radiotherapy is the development direction of image-guided radiotherapy. With the development of nuclear magnetic-guided radiotherapy, the dose verification of nuclear magnetic-guided radiotherapy has become very important, and it will directly affect radiation therapy. The effect of the treatment. MRI-guided radiotherapy is still in the initial stage of practice. One of...

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Application Information

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IPC IPC(8): A61N5/10
CPCA61N5/1071A61N5/1049A61N5/1075A61N2005/1055A61N2005/1076
Inventor 徐榭阳露刘红冬杨巾英邱本胜
Owner 徐榭
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