Device and method for blood vessel identification in congenital heart disease surgery under angiography

Abstract

The invention relates to an apparatus and method for identifying blood vessels in an angiography-assisted congenital heart disease operation. The apparatus comprises a CT image preprocessing module, a segmentation module, a three-dimensional reconstruction module, a two-dimensional planarization module, a contrast imaging module, a registration initialization module, a quantum updating module, an individual mutation module, a mutation post-processing module, an image registration module and a blood vessel identification result display module, wherein the CT image preprocessing module, the segmentation module, the three-dimensional reconstruction module and the two-dimensional planarization module are used before the operation, and the contrast imaging module, the registration initialization module, the quantum updating module, the individual mutation module, the mutation post-processing module, the image registration module and the blood vessel identification result display module are used in the operation. The method includes the following steps that: a preoperative image is segmented; three-dimensional visual reconstruction is performed on segmented CT images, so that segmented two-dimensional images of a preoperative heart and preoperative blood vessels are obtained; and the segmented two-dimensional images of the preoperative heart and preoperative blood vessels are registered with intra-operative contrast images, and results obtained after registration are displayed. With the apparatus and method of the invention adopted, the registration results have high precision and rich detail information, and therefore, the accurate positions of the blood vessels of a patient can be provided for a doctor in a congenital heart disease operation, and the difficulty of the operation can be reduced.

Description

technical field [0001] The invention belongs to the field of medical technology, and further relates to a device and method for identifying blood vessels in congenital heart disease surgery under the mediation of angiography in the field of medical image processing and application technology. The present invention uses the image extraction module in the device for identifying blood vessels in congenital heart disease surgery under the mediation of angiography to segment the preoperative CT images of patients with congenital heart disease, and then planarize the three-dimensional models of the heart and surrounding blood vessels obtained after the segmentation After processing, several CT two-dimensional images are obtained. Then use the intraoperative contrast imaging module of the device of the present invention to obtain the intraoperative contrast images of the heart and peripheral blood vessels of patients with congenital heart disease, and then use the image registration ...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the feature points of the two images are not easy to find, and it is not easy to match accurately, and the internal texture details are not obvious

The disadvantage of this method is that although the time required for the registration of this algorithm has been reduced compared with the basic Powell algorithm, it is still not fast enough, and it is still easy to fall into local optimal results, and the accuracy of registration cannot be guaranteed.

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