A method and system for reconstructing a bone tomographic image

A tomographic image and image technology, which is applied in the field of nuclear medicine imaging to avoid tomographic acquisition and improve efficiency

Active Publication Date: 2021-02-19
ATOMICAL MEDICAL EQUIP FO SHAN LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In clinical bone gamma film images, usually only a few organs and tissues such as bones and kidneys have high radioactive uptake and image contrast, so the image data is relatively sparse, and experienced physicians are able to analyze bone anatomy. This process is completed in the physician's thinking, and there is no way to realize the intuitive registration and fusion display of the bone gamma plain film image and the CT tomographic image of the corresponding part

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  • A method and system for reconstructing a bone tomographic image
  • A method and system for reconstructing a bone tomographic image
  • A method and system for reconstructing a bone tomographic image

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Embodiment 1

[0043] A method for reconstructing a bone tomographic image, comprising the following steps:

[0044] S1: Obtain a three-dimensional skeleton CT image template in the CT local tomographic image;

[0045] S2: Generate a local two-dimensional bone gamma plain film image template according to the three-dimensional bone CT image template;

[0046] S3: searching for the local bone gamma plain film image that best matches the local two-dimensional bone gamma plain film image template in the whole body bone gamma plain film image;

[0047]S4: According to the degree of matching between the whole-body bone gamma plain film image and the local two-dimensional bone gamma plain film image template, the size and range of the three-dimensional bone CT image template are fine-tuned using image morphology algorithms to make the local two-dimensional bone gamma The slice image template covers the region of interest of the whole body bone gamma plain slice image;

[0048] S5: Using the adjus...

Embodiment 2

[0061] A bone tomographic image reconstruction system, including a three-dimensional bone CT image template acquisition module, a two-dimensional bone gamma plain film image template generation module, a local bone gamma plain film image matching module, a region of interest coverage module, a reconstruction attenuation module and a fusion module;

[0062] Three-dimensional bone CT image template acquisition module: used to acquire the three-dimensional bone CT image template in the CT local tomographic image;

[0063] Two-dimensional bone gamma plain film image template generation module: used to generate a local two-dimensional bone gamma plain film image template according to the three-dimensional bone CT image template;

[0064] Local bone gamma plain film image matching module: used to search for the local bone gamma plain film image that best matches the local two-dimensional bone gamma plain film image template in the whole body bone gamma plain film image;

[0065] Re...

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Abstract

The invention discloses a bone tomographic image reconstruction method and system, the method comprising the following steps: S1: obtaining a three-dimensional bone CT image template; S2: generating a local two-dimensional bone gamma plain film image template; S3: matching the whole body bone gamma Plain image to obtain the best matching local two-dimensional bone gamma plain film image; S4: Further optimize the three-dimensional bone CT image template so that the corresponding two-dimensional bone gamma plain film image template completely covers the local bone gamma plain film image Region of interest; S5: Reconstruct a quantitative local bone gamma tomographic image based on the template; S6: Fusion display the local bone gamma tomographic image and the CT local tomographic image. Through the method and system of the present invention, after fusion, the quality of the tomographic image obtained by conventional SPECT tomographic acquisition and reconstruction can be achieved to a level close to that of the tomographic image, which is convenient for doctors to conduct analysis and diagnosis more intuitively. collection, improving efficiency.

Description

technical field [0001] The invention relates to the technical field of nuclear medicine imaging, in particular to a method and system for reconstructing a bone tomographic image. Background technique [0002] Clinically, when using SPECT (Single-Photon Emission Computed Tomography, Single-Photon Emission Computed Tomography) to examine related diseases such as malignant tumor bone metastasis, bone injury, and bone inflammation, a whole-body bone scan procedure is usually performed to obtain whole-body bone gamma Anterior and posterior plain film images are read and analyzed by physicians. For some patients with complicated conditions, it may be necessary for the physician to further decide to perform a local tomographic X-ray CT scan based on the whole-body bone gamma plain film image, and obtain a CT tomographic image of a certain part for auxiliary diagnosis. If there is still doubt about the combination of bone plain film images and CT local tomographic images, SPECT tom...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/00G06T7/11G06T11/00
CPCG06T11/003G06T17/00G06T2207/10081G06T2207/30008G06T7/11
Inventor 陈思姜苏青蔡奉岐
Owner ATOMICAL MEDICAL EQUIP FO SHAN LTD
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