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Rapid calculation method of stereotactic radiotherapy dosage field distribution

A stereotaxic and field distribution technology, applied in radiation therapy, treatment and other directions, can solve the problems of complicated maintenance, inconvenient use, and expensive special workstations, and achieve the effect of satisfying clinical applications, easy to use, and fast calculation speed.

Inactive Publication Date: 2013-11-27
曲桂红
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Problems solved by technology

[0005] In order to solve the problems of expensive, complex maintenance and inconvenient use of the dedicated workstations used in the prior art, this patent proposes a fast calculation method for the dose field distribution of stereotactic radiation tumor therapy, which is based on the parallel computing hardware technology introduced in the background technology above. Acceleration of Dose Field Distribution Computation for Stereotactic Radiation Oncology Therapy Using Parallel Algorithms

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  • Rapid calculation method of stereotactic radiotherapy dosage field distribution
  • Rapid calculation method of stereotactic radiotherapy dosage field distribution
  • Rapid calculation method of stereotactic radiotherapy dosage field distribution

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Embodiment Construction

[0013] The following example is a fast calculation method for the dose field distribution of stereotaxic radiation oncology treatment based on the empirical dose calculation model combined with CUDA programming technology using GPU

[0014] 1. Define the three-dimensional matrix data structure of the dose field, allocate texture memory for the three-dimensional matrix on the device side and initialize the three-dimensional matrix with zero.

[0015] 2. On the device side, determine the voxels to be calculated in the dose field. The specific method is to decompose the three-dimensional dose field into a series of two-dimensional dose fields according to a certain axis of the dose field, and then calculate the radiation field and each two-dimensional dose The intersection contour of the field, and the points within the contour correspond to the voxels to be calculated. See figure 2 .

[0016] 3. For each voxel to be calculated in the field of view, use the Bresenham ray traci...

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Abstract

The invention provides a rapid calculation method of stereotactic radiotherapy dosage field distribution and relates to stereotactic radiate oncotherapy dosage field distribution calculation. Dosage calculation speed is an important performance index of treatment plan system software. To meet the clinic computation speed requirement, treatment plan system software manufacturers use special work stations as operation platforms of the plan system software, and the work stations are expensive, complex in maintenance work, high in environment requirement and not convenient to operate. The invention provides the parallel calculation method based on a hardware multi-core processor to achieve acceleration of stereotactic radiate oncotherapy dosage field distribution calculation. Compared with the prior art, the method can be carried out on a microcomputer with GPU equipment or a universal work station, the price is one tenth or less of that of the special work station, and the calculation method has the advantages that hardware cost is low, device maintenance is convenient, the method can be easily used by clinic work staff, calculation speed is high, and the clinic application demand can be sufficiently satisfied.

Description

technical field [0001] The invention relates to the calculation of the dose field distribution of the stereotactic radiation tumor treatment, in particular to a fast calculation method for the dose field distribution of the stereotactic radiation tumor treatment. Background technique [0002] An important part of stereotactic radiation oncology treatment is the formulation of treatment plan, which is based on the calculation of the dose field distribution in the patient's body. At present, there are empirical formulas for dose field distribution models, such as pencil beam, convolution / superposition, Monte Carlo, etc. The accuracy of these algorithms is from low to high, but the calculation amount is also from small to large. The length of dose calculation time will directly affect the efficiency of treatment planning, and it is an important performance index to measure the software of a treatment planning system. [0003] At present, commercial stereotaxic radiation oncolo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/00
Inventor 曲桂红
Owner 曲桂红
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