Tissue and organ registration method and device, computer equipment and storage medium

Abstract

The invention relates to a tissue and organ registration method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring a first processing image of a first image and a second processing image of a second image, and performing rigid registration on a target organ in the first processing image and a target organ in the second processing image to obtain a rigid registration result, and performing elastic registration on the target organ in the rigid registration result and the target organ in the second processing image to obtain an elastic registration result, and processing the first image according to the rigid registration result and the elastic registration result to obtain a registered image. According to the method, rich information of the target organ contained in the first image can be registered into the second image, registration is carried out based on the conversion relation of the feature points in the target organ, and compared with a traditional registration method that registration is carried out only based on the surface feature points of the target organ, the obtained registration result is more accurate, and the robustness is high.

Description

technical field [0001] The present application relates to the technical field of medical image processing, in particular to a registration method, device, computer equipment and storage medium of tissues and organs. Background technique [0002] In the process of thoracic and abdominal interventional surgery, enhanced CT scans are generally performed for preoperative diagnosis, which can be used to provide relevant anatomical information such as organs, blood vessels, and tumors. Due to the limitation of clinical conditions, only plain CT scans are generally performed during the operation. Due to the influence of the environment and the patient's body, the intraoperative CT plain scan images are compared with the preoperative CT enhanced images, and the internal organs and tissues of the patient in the images are shifted. , so the anatomical information obtained before the operation cannot be utilized during the operation, which brings greater difficulty and challenge to the...

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Problems solved by technology

[0004] However, the above-mentioned registration method requires that the two sets of data information for registration are symmetrical, but the enhanced CT images before interventional surgery have a lot of contrast highlight information, while the CT plain scan images during the operation lack this part of information, so that during the registration process, The detailed information inside the organ, such as blood vessels, tumors, etc., has poor registration results and cannot meet the high accuracy requirements of actual interventional surgery

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