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Medical image processing method and device, image processing equipment and medium

A medical image and processing method technology, applied in the field of image processing, can solve the problem of inability to accurately determine the blood flow parameters of dynamic enhanced CT, and achieve the effect of high accuracy

Pending Publication Date: 2021-04-13
SHENZHEN INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides a medical image processing method, device, image processing equipment and medium, which solves the technical problem that the blood flow parameters of dynamic enhanced CT cannot be accurately determined in the prior art

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  • Medical image processing method and device, image processing equipment and medium
  • Medical image processing method and device, image processing equipment and medium
  • Medical image processing method and device, image processing equipment and medium

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Experimental program
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Embodiment 1

[0026] figure 1 It is a flow chart of the medical image processing method provided by Embodiment 1 of the present invention. The technical solution of this embodiment is applicable to the case of determining a preset blood flow parameter corresponding to a dynamically enhanced CT image based on a preset estimation model constructed with a box-type attenuation function. The method can be executed by the medical image processing apparatus provided in the embodiment of the present invention, and the apparatus can be implemented in the form of software and / or hardware, and configured to be applied in a processor of an image processing device. The method specifically includes the following steps:

[0027] S101. Determine an arterial input function of an arterial vessel supplying blood to a target site and attenuation coefficient enhancement information of a single voxel corresponding to the arterial vessel according to multiple groups of dynamically enhanced CT images acquired at ...

Embodiment 2

[0050] figure 2 It is a flow chart of the medical image processing method provided by Embodiment 2 of the present invention. On the basis of the above-mentioned embodiments, the embodiment of the present invention adds a step of estimating the distribution of preset blood flow parameters.

[0051] Correspondingly, the method of this embodiment includes:

[0052] S201. Determine an arterial input function of an arterial vessel supplying blood to a target site and attenuation coefficient enhancement information of a single voxel corresponding to the arterial vessel according to multiple groups of dynamically enhanced CT images acquired at different time points.

[0053] S202. Input the arterial input function and attenuation coefficient enhancement information into the preset estimation model to obtain the preset blood flow parameters of the target site. The preset blood flow parameters include blood flow velocity and average flow time. The preset estimation model is based on ...

Embodiment 3

[0087] image 3 It is a structural block diagram of a medical image processing device provided by an embodiment of the present invention. The device is used to execute the medical image processing method provided in any of the above embodiments, and the device may be implemented by software or hardware. The unit includes:

[0088] The acquisition module 11 is configured to determine the arterial input function of the arterial vessel supplying blood to the target site and the attenuation coefficient enhancement information of a single voxel corresponding to the arterial vessel according to multiple groups of dynamically enhanced CT images acquired at different time points;

[0089] The blood flow parameter determination module 12 is used to input the arterial input function and the attenuation coefficient enhancement information into the preset estimation model to obtain the preset blood flow parameters of the target site. The preset blood flow parameters include blood flow ve...

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Abstract

The embodiment of the invention discloses a medical image processing method and device, image processing equipment and a medium. The method comprises the steps: according to a plurality of groups of dynamic enhancement CT images collected at different time points, determining an artery input function of an artery blood vessel for supplying blood to a target part and attenuation coefficient enhancement information of a single voxel corresponding to the artery blood vessel; and inputting the artery input function and the attenuation coefficient enhancement information into a preset estimation model to obtain preset blood flow parameters of the target part, wherein the preset blood flow parameters comprise blood flow velocity and average flow-through time, and the preset estimation model is constructed based on a box type attenuation function. The technical problem that the blood flow parameters of dynamic enhancement CT cannot be accurately determined in the prior art is solved.

Description

technical field [0001] Embodiments of the present invention relate to the field of image processing, and in particular, to a medical image processing method, device, image processing device, and medium. Background technique [0002] The Global Burden of Disease Study shows that the overall lifetime risk of stroke in the Chinese population is 39.9%, which is the number one cause of years of life lost due to disease. Stroke is divided into two types, namely ischemic stroke and hemorrhagic stroke. Blood type strokes are caused by a complete or partial blockage of blood flow, and hemorrhagic strokes are caused by a nontraumatic rupture of a blood vessel in the brain that causes blood to pool in the brain. Clinically, stroke information used for diagnosis is usually obtained by dynamic enhanced CT (Computed Tomograph, referred to as CT, computerized tomography) imaging measured cerebral blood flow parameters, such as blood volume (CBV), blood flow velocity (CBF ), mean transit t...

Claims

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Application Information

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IPC IPC(8): A61B6/03A61B5/026
CPCA61B5/026A61B6/032A61B6/5211A61B6/5217
Inventor 孙涛杨永峰
Owner SHENZHEN INST OF ADVANCED TECH