Seed counting method of interaction of 2D image and 3D image

A particle counting, 3D technology, applied in image data processing, X-ray/γ-ray/particle irradiation therapy, 3D modeling, etc., can solve errors, quickly determine particle efficacy evaluation and other problems, and achieve the effect of improving the effect

Active Publication Date: 2018-07-24
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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  • Seed counting method of interaction of 2D image and 3D image
  • Seed counting method of interaction of 2D image and 3D image
  • Seed counting method of interaction of 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 method 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 particle 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 o...

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Abstract

The present invention relates to a seed counting method of interaction of a 2D image and a 3D image. The method comprises the steps of: obtaining a CT image of a patient after seed implantation and atumour area corresponding to the CT image; obtaining a 2D image; regulating and setting a reconstructed threshold value of a 3D model, extracting an outer contours of a seed, and establishing a 3D model according to the outer contour; taking the position of the seed selected in the 2D image as a center of the seed, and establishing a coordinate system; displaying a layer position of a 2D layer inthe 3D model, and determining the position of the center of the seed according to the interaction relation thereof; and performing statistics of the number of implanted seeds according to the determined position of the center to obtain the number of the implanted seeds. The seed counting method of interaction of a 2D image and a 3D image is applied to the seed implantation radiotherapy guided by images so as to improve the accuracy of the dosage assessment of seed 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 method 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 the current treatment, more than 60% of patients need all or part of radiation therapy. In radiotherapy, the basic goal is to try to increase the gain ratio of radiotherapy, to give sufficient radiation dose to the...

Claims

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Application Information

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Patent Type & Authority Applications(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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