Surgical navigation registration method and device, computer equipment and storage medium

Abstract

The invention relates to a surgical navigation registration method and device, computer equipment and a storage medium. The method comprises the steps that CT images of a patient and at least two X-Ray images shot by a C arm under different postures are acquired, coordinates of anatomical points in a surgical coordinate system are determined according to imaging parameters of the C arm under different postures and pixel coordinates of the anatomical points in the X-Ray images corresponding to different postures, and finally target registration parameters are determined according to spatial coordinates of the anatomical points in the CT images and the coordinates of the anatomical points in the surgical coordinate system. According to the method, the C arm is applied to registration of the spatial coordinates of the CT images and the surgical spatial coordinates, and the problem that in the existing surgical registration process, registration errors are large due to the fact that registration is conducted depending on doctor experience is solved. Besides, when the surgical navigation registration method needs to be used for registration again, registration can be achieved again only by shooting the X-Ray images through the C arm, and higher applicability is achieved.

Description

technical field [0001] The present application relates to the technical field of medical devices, and in particular, to a registration method, device, computer equipment and storage medium for surgical navigation. Background technique [0002] In acetabular replacement surgery, a preoperative computed tomography (Computed Tomography, CT) scan of the patient's acetabulum is generally required, and preoperative planning is performed on the scan data. During the operation, in order to perform the operation according to the preoperative plan, it is necessary to correspond the posture of the patient during the operation with the posture in the preoperative CT scan data. [0003] The existing method is to identify a series of anatomical points in the acetabulum in the preoperative CT scan data, and let the doctor find these anatomical points in the patient's acetabulum, so as to establish the anatomical point and the acetabulum in the CT scan data. The registration relationship b...

AI Technical Summary

Problems solved by technology

However, at this time, the patient's bone tissue is different from the bone tissue in the CT scan data, so registration can no longer be performed according to the above registration method, so the application of the above registration method is low

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