Intraoperative navigation method and system for intravascular treatment

Abstract

The invention discloses an intraoperative navigation method, system and device for intravascular treatment and a computer readable storage medium. The method comprises the steps that a CT image of a preoperative diseased region is obtained; identifying a CT image of a preoperative lesion part to generate a 3D model; obtaining a first vector feature of the 3D model after first preprocessing according to the 3D model; acquiring a plane image of an intraoperative diseased region; performing second preprocessing according to the plane image of the intraoperative lesion part to obtain a second vector feature of the plane image of the intraoperative lesion part; and performing feature matching comparison on the first vector feature and the second vector feature, and determining and adjusting the three-dimensional view angle orientation of the plane image of the intraoperative lesion part in the 3D model. The problems that the three-dimensional space position of the existing intervention equipment at the focus part completely depends on the understanding and imagination of an operation part by an operator according to personal experience for positioning, and great difficulty is brought to the accuracy of the operation are solved.

Description

technical field [0001] The invention belongs to the field of medical technology, and in particular relates to an intraoperative navigation method and a system for intravascular treatment. Background technique [0002] The location of important blood vessels in the operation area is a necessary condition for many surgical operations to reduce the risk of surgery and improve the success rate of the operation. For example, the location of blood vessels in the complex operation area of ​​general surgery can reduce intraoperative bleeding; the location of blood vessels in the operation area of ​​vascular surgery can clarify the operation site, etc. Existing vascular imaging methods mainly focus on preoperative blood vessel localization, with color Doppler ultrasound and CT angiography being the most common. Among them, CT angiography can provide information such as blood vessel diameter and course, and can clearly display the relationship between blood vessels and surrounding mus...

AI Technical Summary

Problems solved by technology

Since the DSA imaging equipment can only form two-dimensional images, the three-dimensional space position of the guide wire in the blood vessel depends entirely on the operator's personal experience to locate the surgical site and the imagination, which brings great difficulties to the accuracy of the surgical operation. Not only cannot the real-time position of the guide wire during the operation be precise, but it also leads to a high risk of surgical failure

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