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Parameter calculation method, system, readable storage medium and computer device

A parameter calculation and parameter technology, applied in the field of medical image analysis, can solve problems such as large calculation method errors, achieve the effects of reducing errors, improving accuracy and versatility

Active Publication Date: 2019-03-12
SHENZHEN RAYSIGHT INTELLIGENT MEDICAL TECH CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] The present invention provides a parameter calculation method, system, readable storage medium and computer equipment, aiming to improve the technical problem of large errors in the calculation method of vascular dynamic parameters in the prior art

Method used

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  • Parameter calculation method, system, readable storage medium and computer device
  • Parameter calculation method, system, readable storage medium and computer device
  • Parameter calculation method, system, readable storage medium and computer device

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Embodiment 1

[0051] see figure 1 , shows the parameter calculation method in the first embodiment of the present invention, which is used to calculate the hemodynamic parameters of blood vessels, the blood vessels include coronary arteries and aorta, and the method includes steps S01 to S06.

[0052] In step S01 , the blood vessel image is processed to obtain pixel-based preliminary segmentation of the aorta and coronary artery respectively.

[0053] Specifically, the vascular images include but not limited to vascular CT (Computed Tomography, computerized tomography) images and vascular MRI (MRI, Magnetic Resonance Imaging, nuclear magnetic resonance) images, and the like.

[0054] Among them, processing the blood vessel image refers to performing a blood vessel segmentation algorithm on the blood vessel image. The blood vessel segmentation algorithm refers to "extracting" blood vessels from the blood vessel image. Specifically, it can be to use the discontinuity of the blood vessel bound...

Embodiment 2

[0071] see figure 2 , shows the parameter calculation method in the second embodiment of the present invention, which is used to calculate the hemodynamic parameters of blood vessels, the blood vessels include coronary arteries and aorta, and the method includes steps S11 to S19.

[0072] In step S11, the blood vessel image is processed to obtain pixel-based preliminary segmentation of the aorta and coronary artery respectively.

[0073] As an implementation, see image 3 , shows a specific implementation flowchart for processing the blood vessel image, including steps S111 to S113.

[0074] Step S111 , repeatedly performing blood vessel segmentation on the blood vessel image through a neural network.

[0075] Step S112, matching the segmented image output by the neural network each time with the corresponding pre-stored image, and feeding back the matching result to the neural network.

[0076] Wherein, the pre-stored image is a preset manually marked blood vessel templat...

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Abstract

The invention provides a parameter calculation method, a system, a readable storage medium and a computer device. The method comprises: processing blood vessel images to obtain pixel-based preliminarysegmentation of an aorta and a coronary artery respectively; The centerline of aorta is extracted from the pixel segmentation of aorta, and the smooth contour curve of aorta is calculated along the centerline of aorta. The centerline of coronary artery is extracted from the pixel segmentation of coronary artery, and the smooth contour curve of coronary artery is calculated along the centerline ofcoronary artery. According to the centerline and contour curve, the three-dimensional models of aorta and coronary artery were established and combined to obtain the three-dimensional model of bloodvessel. The three-dimensional model of blood vessel is gridded to obtain the model grid information. According to the grid information of the model, the hydrodynamic equations are solved to obtain thehemodynamic parameters. The parameter calculation method of the invention has a complete blood vessel modeling system and a parameter calculation system with wide applicability, and the precision andthe universality are improved.

Description

technical field [0001] The present invention relates to the field of medical image analysis, in particular to a parameter calculation method, system, readable storage medium and computer equipment. Background technique [0002] Medical image analysis is one of the important means to help doctors diagnose patients' conditions and is widely used in clinical practice. Medical image analysis refers to the process of extracting parameter information from medical images by using human subjectivity or analysis techniques such as image processing. [0003] Calculation of hemodynamic parameters of blood vessels is a common method in medical image analysis, which requires the calculation of blood flow parameters such as flow velocity, pressure, and wall shear force of blood vessels, so as to greatly facilitate doctors' diagnosis of patients' conditions. [0004] Among the existing technologies, the calculation methods of vascular dynamic parameters generally have the problems of larg...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T7/12G06T7/68G06T17/20G06F17/11
CPCG06F17/11G06T7/0012G06T7/12G06T7/68G06T17/20G06T2200/04G06T2207/30104
Inventor 兰宏志马骏郑凌霄
Owner SHENZHEN RAYSIGHT INTELLIGENT MEDICAL TECH CO LTD
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