Method and device for simulating diffusion process of contrast agent

A diffusion process and simulation method technology, applied in the field of contrast agent diffusion process simulation, can solve the problems of low authenticity of simulation effect, difficulty in obtaining parameters, large amount of calculation, etc.

Active Publication Date: 2015-04-29
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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Problems solved by technology

[0009] An embodiment of the present invention provides a method for simulating a contrast agent diffusion process to solve the technical problems ...

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  • Method and device for simulating diffusion process of contrast agent
  • Method and device for simulating diffusion process of contrast agent
  • Method and device for simulating diffusion process of contrast agent

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[0068] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0069] In an embodiment of the present invention, a method for simulating a contrast agent diffusion process is provided, such as figure 1 shown, including the following steps:

[0070] Step 101: Construct a three-dimensional blood vessel model according to the blood vessel CT scan image of an individual patient;

[0071] Step 102: Preprocessing the three-dimensional blood vessel model;

[0072] Step 103: Render the preprocessed 3D blood vessel model to the screen, and initialize the particles in the 3D blood vessel model rendered to the screen;

[0073] Step 104: Perform collision detection...

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Abstract

The invention provides a method and device for simulating a diffusion process of a contrast agent. The method comprises steps as follows: a three-dimensional blood vessel model is built according to a blood vessel CT scanning image; the three-dimensional blood vessel model is pre-processed; the pre-processed model is rendered to a screen, and particles are initialized; the three-dimensional blood vessel model rendered to the screen and the initialized particles are subjected to collision detection, the action force of the three-dimensional blood vessel model on the particles is calculated according to a collision detection result to obtain external force; internal force among the initialized particles is calculated according to smoothed particle hydrodynamics; the state of the particles in the three-dimensional blood vessel model rendered to the screen is updated and rendered to the screen. The method and device solve the technical problems of large calculation amount, difficulty in acquisition of parameters and low authenticity of a simulation effect with a conventional method for simulating the diffusion process of the contrast agent in the prior art, and realize the technical effects of good instantaneity, high simulation effect accuracy and simple simulation process.

Description

technical field [0001] The invention relates to the technical field of digital surgery, in particular to a method and device for simulating a contrast medium diffusion process. Background technique [0002] Cardiovascular disease is the largest cause of death in the world. Interventional surgery is a kind of small channel with a diameter of a few millimeters in blood vessels and skin, or through the original pipeline of the human body, without surgical exposure of the lesion. Under the guidance of equipment (angiography machine, fluoroscopy machine, CT, MR, B-ultrasound), it is the least traumatic treatment method to treat the lesion locally. This method has become an important treatment method for cardiovascular diseases because of its advantages of small trauma, simplicity, safety and effectiveness, few complications and short hospital stay. Interventional surgery has very high requirements on the actual surgical experience and hand-eye coordination ability of the perform...

Claims

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Application Information

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IPC IPC(8): G06T17/00G06T15/00
CPCG06T15/00G06T17/00
Inventor 吴剑煌秦怡王浩宇胡庆茂
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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