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A particle counting device for interaction between 2D image and 3D image

A particle counting device and particle technology, which are applied in image data processing, image analysis, image enhancement and other directions, can solve problems such as errors and quickly determine particle efficacy evaluation, and achieve the effect of improving the effect.

Active Publication Date: 2021-07-30
福建省肿瘤医院
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Problems solved by technology

In the online and offline evaluation of particle implantation, due to technical and time constraints, doctors cannot accurately and quickly determine the precise position of particles, which will cause fatal errors in the evaluation of therapeutic efficacy

Method used

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  • A particle counting device for interaction between 2D image and 3D image
  • A particle counting device for interaction between 2D image and 3D image
  • A particle counting device for interaction between 2D image and 3D image

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Embodiment Construction

[0030] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0031] The present invention provides a particle counting device for interaction between 2D images and 3D images, such as figure 1 As shown, follow the steps below to achieve:

[0032] Step S1: Obtain the CT image of the patient after seed implantation and its corresponding tumor area, and obtain a 2D image;

[0033] Step S2: Select the range of particles in the 2D image, adjust and set the reconstruction threshold of the 3D model, extract the outer contour of the particle, and build a 3D model according to the outer contour;

[0034] Step S3: Use the particle position selected in the 2D image as the center of the particle in the 3D model, and establish a coordinate system; display the sectional position of the 2D layer in the 3D model, and determine the particle's position according to the interaction between the two the location of th...

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Abstract

The invention relates to a particle counting method for interaction between 2D images and 3D images, which obtains CT images of patients after particle implantation and their corresponding tumor regions, and obtains 2D images; adjusts and sets the reconstruction threshold of 3D models, and extracts the outer contours of particles , establish a 3D model according to the outer contour; use the particle position selected in the 2D image as the center of the particle in the 3D model, and establish a coordinate system; display the layer position of the 2D layer in the 3D model, and according to the interaction between them relationship, determine the position of the center of the particles; count the number of implanted particles according to the determined center position, and then obtain the number of implanted particles. A method for counting particles in which 2D images interact with 3D images proposed by the present invention is applied to image-guided particle implantation radiation therapy to improve the accuracy of dose assessment of particle implantation.

Description

technical field [0001] The invention relates to the technical field of medical image processing and image-guided radiotherapy, in particular to a particle counting device for interaction between 2D images and 3D images. Background technique [0002] There are three main methods of cancer treatment: surgery, radiotherapy and chemotherapy. With the improvement of living conditions, more and more tumors are detected and treated at an early stage. Radiation therapy has a unique position in tumor treatment. Some tumors, such as nasopharyngeal cancer, cervical cancer, breast cancer, prostate cancer, etc., have the same curative effect of radiation therapy as other treatment methods, and some radiation therapy effects are almost the same as other treatment methods. In current treatment, more than 60% of patients need all or part of radiotherapy. In radiotherapy, the basic goal is to try to increase the gain ratio of radiotherapy, to give sufficient radiation dose to the tumor ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/00G06T19/20G06T7/10A61N5/10
CPCA61N5/1071A61N2005/1072G06T17/00G06T19/20G06T2207/10081G06T2207/30096G06T2207/30242G06T7/10
Inventor 柏朋刚戴艺涛陈济鸿陈传本
Owner 福建省肿瘤医院
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