An optimal dose-guided TPS automatic iterative optimization method

An iterative optimization and dosage technology, applied in the medical field, can solve problems such as time-consuming and labor-intensive
CN109499012BActive Publication Date: 2021-05-11SUZHOU LINATECH MEDICAL SCI & TECH CO LTD
4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
SUZHOU LINATECH MEDICAL SCI & TECH CO LTD
Publication Date
2021-05-11

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a TPS automatic iterative optimization method guided by optimized dose, which includes the following content: first, calculate the difference between the dose of each point in each organ and the optimization result according to the divided dose, and use it as the input of the optimization engine to obtain the difference part The contribution of the intensity map; then, subtract the intensity map of the difference part from the original optimized intensity map, and use it as the input of the intensity map of the sub-field segmentation to obtain the iterated sub-field and calculate the dose; finally, repeat the whole process to make the final The dose distribution is close to the optimized dose, and the expected dose distribution is obtained. By applying the present invention, the subfield segmentation step is considered in the whole optimization process, and the dose deviation generated by subfield segmentation is continuously corrected, which can significantly improve the planning quality and speed up the planning production efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of medical technology, and mainly relates to an optimization method of inverse intensity-modulated radiotherapy, in particular to a TPS automatic iterative optimization method guided by optimized dose. Background technique

[0002] Intensity-modulated radiation therapy (IMRT), as a type of radiotherapy, adjusts the beam intensity according to the three-dimensional shape of the target area and the anatomical relationship between the organs at risk and the target area, so that the distribution of radiation dose is consistent with the shape of the target area, and the radiation dose received in the target area is consistent with the target area. The uniformly distributed high dose ensures the killing of tumor cells, and at the same time enables normal tissues to receive a lower dose of irradiation, so as to protect normal organs and reduce adverse reactions.

[0003] The traditional IMRT planning process generally includ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More