Multi-energy CT system image registration method and device, computer equipment and storage medium

Abstract

The invention relates to a multi-energy CT system image registration method and device, computer equipment and a storage medium. The registration method comprises the steps: generating a first reference image based on a first energy spectrum image and a second energy spectrum image; obtaining a deformation vector field based on the second energy spectrum image and a first reference image; and registering the first energy spectrum image based on the deformation vector field to obtain a registered image. According to the multi-energy CT system image registration method and device, the computer equipment and the storage medium, the high-energy image and the low-energy image are preprocessed, the CT values of the high-energy image and the low-energy image are processed to be consistent, the processed images are used for calculating the deformation vector field, the deformation vector field acts on the original image to obtain the finally registered image, the registration precision is high, the stability is good, the speed is high, and the efficiency is high.

Description

technical field [0001] The present application relates to the technical field of medical devices, in particular to a multi-energy CT system image registration method, device, computer equipment and storage medium. Background technique [0002] With the development of X-ray detectors and imaging systems, dual-energy CT has been widely used. Compared with traditional single-energy CT, dual-energy CT can use material separation imaging to accurately quantify iodine or calcium in tissues. Low keV and high keV single-energy spectrum images can respectively improve image contrast and effectively reduce metal and hardening artifacts , to increase the display rate of lesions. Therefore, dual-energy CT is of great significance in the field of clinical medical diagnosis. Among them, material separation imaging can effectively extract the iodine components in the tissue and obtain an iodine map with pseudo-color, which can directly reflect the iodine concentration in the lesion to ev...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a multi-energy CT system image registration method, device, computer equipment and storage medium to at least solve the problem of poor registration accuracy of registration methods for high and low energy images in traditional technologies in related technologies, and the calculation The problem of large amount, long time consumption and low efficiency

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