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Retrieval-based radiotherapy planning system and retrieval method

A radiation therapy and planning technology, applied in computing, special data processing applications, instruments, etc., can solve the problems of tissue inhomogeneity correction and scattering correction, long time-consuming radiation therapy plan design, low efficiency of radiation therapy plan design, etc., to reduce time and complexity, increasing efficiency and the effectiveness of

Active Publication Date: 2013-11-06
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dose distribution needs to be recalculated for each tuning, and dose calculation is performed in three-dimensional space, and requires tissue inhomogeneity correction and scatter correction, so radiotherapy plan design often takes a long time
The design of radiation therapy plan takes too long, resulting in low efficiency of radiation therapy plan design, and it is difficult to obtain high-quality treatment plan

Method used

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  • Retrieval-based radiotherapy planning system and retrieval method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Example 1: The process of using 6M X-rays to plan intensity-modulated radiation therapy for patients.

[0056] Step 1: The doctor gives the prescribed dose of the target area and key tissues; loads the patient’s CT image data from the hard disk or network, applies automatic and semi-automatic image segmentation methods to obtain the contours of tumors, key tissues, and normal tissues, and performs 3D reconstruction and Display, and extract semantic and geometric features.

[0057] Step 2: According to the semantic and geometric features of the current case, the computer retrieves similar cases from the radiotherapy plan database to obtain the intensity-modulated radiotherapy plan of similar cases.

[0058] Step 3: According to the intensity-modulated radiation therapy plan of similar cases obtained by retrieval, design the intensity-modulated radiation therapy plan of the current case, and then optimize and evaluate the radiation therapy plan until the radiation therapy...

Embodiment 2

[0061] Example 2: The process of using electronic wires to plan conformal radiation therapy for patients.

[0062] Step 1: The doctor gives the prescribed dose of the target area and key tissues; loads the patient’s CT image data from the hard disk or network, applies automatic and semi-automatic image segmentation methods to obtain the contours of tumors, key tissues, and normal tissues, and performs 3D reconstruction and Display, and extract semantic and geometric features.

[0063] Step 2: According to the semantic features and geometric features of the current case, the computer retrieves similar cases from the radiotherapy plan database to obtain the electronic radiotherapy plan of similar cases.

[0064] Step 3: According to the electronic radiation therapy plan of the similar cases retrieved, design the electronic radiation therapy plan of the current case, and then optimize and evaluate the radiation therapy plan until the radiation therapy plan that meets the clinical...

Embodiment 3

[0067] Embodiment 3: The process of using Gamma Knife to plan radiotherapy for patients.

[0068] Step 1: The doctor gives the prescribed dose of the target area and key tissues; loads the patient’s CT image data from the hard disk or network, applies automatic and semi-automatic image segmentation methods to obtain the contours of tumors, key tissues, and normal tissues, and performs 3D reconstruction and Display, and extract semantic and geometric features.

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Abstract

The invention discloses a retrieval-based radiotherapy planning system, which comprises a radiotherapy plan database, an image processing module, a radiotherapy plan retrieval module, a radiotherapy plan design module and a radiotherapy plan output module, wherein the radiotherapy plan database consists of high-quality radiotherapy plans of historical typical cases; the radiotherapy plan retrieval module is based on case semantic characteristics and geometrical characteristics; and the system is applied to all types of radiotherapy. The invention also provides a retrieval method based on the radiotherapy plan database. The method comprises the following steps of: retrieving the radiotherapy plan database to obtain radiotherapy plans of similar cases; and guiding the portal design and optimization of the radiotherapy plan of a current case, so that the design of the radiotherapy plan is quickened, and the quality of the radiotherapy plan is improved.

Description

technical field [0001] The present invention relates to a radiotherapy planning system, including various radiotherapy planning systems that use X-rays, γ-rays, electron beams, protons, etc. to perform radiotherapy. Background technique [0002] Radiation therapy is one of the effective methods of tumor treatment, and the radiation therapy planning system is one of the important components of radiation therapy. The purpose of radiotherapy planning is to select the best possible irradiation plan to achieve high-dose irradiation on the target area, resulting in irreversible damage while minimizing the impact on surrounding normal tissues and critical or sensitive tissues. Radiotherapy plan optimization is an important part of treatment plan design, and the reliability and efficiency of treatment plans are closely related to it. The efficiency of radiotherapy plan optimization is closely related to the initial conditions. Good initial conditions can improve the speed of radio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00G06F17/30
Inventor 周正东
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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