A method and system for constructing clinical brain CT image ROI template

A CT image and image technology, which is applied in the field of medical imaging, can solve the problems of difficult to realize the ROI template production of CT images, and achieve the effect of high registration accuracy and low resolution accuracy.

Active Publication Date: 2022-06-17
ZHEJIANG FUTURE TECH INST JIAXING
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Problems solved by technology

[0005] To this end, the embodiment of the present invention provides a method and system for constructing a clinical brain CT image ROI template, so as to solve the existing problem that it is difficult to realize the creation of a CT image ROI template

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  • A method and system for constructing clinical brain CT image ROI template
  • A method and system for constructing clinical brain CT image ROI template
  • A method and system for constructing clinical brain CT image ROI template

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Embodiment 1

[0086] The embodiment of the present invention proposes a method for constructing a ROI template of a clinical brain CT image, such as figure 1 As shown, the method includes the following steps:

[0087] Step 110: Obtain the brain CT image I of the same individual in the same state CT_0 and MRI image I MRI_0 .

[0088] CT images and MRI images of the same individual in the same state have similarities in brain functional areas. The acquired CT images and MRI images need to be preprocessed and cropped to the same size. A digital image can be represented by a numerical matrix. The computer usually uses a two-dimensional array to store image data. The elements of the matrix correspond to the pixels of the image, and the value of the matrix element is the gray value of the pixel.

[0089] Step 120, to the MRI image I MRI_0 The ROI template image I of the MRI image is obtained by marking the ROI of the region of interest MRI_ROI , and get the ROI labeled image I ROI .

[00...

Embodiment 2

[0155] Corresponding to the above-mentioned Embodiment 1, the embodiment of the present invention proposes a system for constructing a ROI template of a clinical brain CT image, such as: figure 2 As shown, the system includes:

[0156] The image acquisition module 210 is used to acquire the brain CT image I of the same individual in the same state CT_0 and MRI image I MRI_0 ;

[0157] The image processing module 220 is used for MRI image I MRI_0 The ROI template image I of the MRI image is obtained by marking the ROI of the region of interest MRI_ROI , and get the ROI labeled image I ROI ;

[0158] According to CT image I CT_0 and MRI image I MRI_0 , respectively, to obtain the skull mask map I of the CT image CT_1 and the skull mask of the MRI image I MRI_1 ;

[0159] Brain case mask map I for CT images respectively CT_1 and MRI images of the skull mask I MRI_1 Carry out the skull contour marking, and obtain the skull contour mask M of the CT image CT_1 and MRI ...

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Abstract

The embodiment of the present invention discloses a method and system for constructing a clinical brain CT image ROI template. According to the similarity of the acquired CT image and MRI image brain functional area of ​​the same individual, using the ROI template based on the MRI image, through A series of multi-step single-modal rigid and non-rigid registrations have been completed, and ROI templates based on CT images have been produced. Using the theoretical basis of single-modal registration to achieve the purpose of multi-modal registration, the registration accuracy is high, and the solution To solve the problem of low accuracy of multimodal registration directly, the ROI template for CT images can be used for clinical practical application.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of medical imaging, and in particular, to a method and system for constructing a ROI template of a clinical brain CT image. Background technique [0002] With the continuous development of medical imaging technology, more and more imaging methods have appeared, which are widely used in the research of brain cognitive function and medical clinical diagnosis and treatment. Due to different imaging principles and equipment, computer-assisted tomography (CT) and magnetic resonance imaging (MRI) are commonly used clinically. These two types of imaging methods have their own advantages and disadvantages, and the information they provide is not exactly the same. For example, in structural imaging, CT can clearly display the structural image of bone, while MRI is more suitable for imaging soft tissue morphology. Therefore, different modalities of imaging Methods can provide complementary infor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/33G06T7/62G06T7/66
CPCG06T7/0012G06T7/344G06T7/62G06T7/66G06T2207/10081G06T2207/10088G06T2207/30016
Inventor 周扬黄海亮邵航张新娄昕吕晋浩
Owner ZHEJIANG FUTURE TECH INST JIAXING
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