Bone fault image reconstruction method and system

Abstract

The invention discloses a bone fault image reconstruction method and system. The method comprises the following steps of 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 film image to obtain the most matched local two-dimensional bone gamma plain film image; S4, further optimizing the three-dimensional bone CT image template, and enabling the two-dimensional bone gamma image template corresponding to the three-dimensional bone CT image template to completely cover the region of interest of the local bone gamma image; s5, reconstructing a quantitative local bone gamma tomography image based on the template; and S6, carrying out fusion display on the local bone gamma tomography image and the CT tomography image. By means of the method and system, the level close to the quality of a tomographic image obtained through conventional SPECT tomographic acquisition and reconstruction can be achieved after fusion, a doctor can analyze and diagnose the tomographic image more visually, clinical examination is conducted on part of patients, extra tomographic acquisition is avoided, and efficiency is improved.

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...

AI Technical Summary

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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