Three-dimensional reconstruction method and system for blood vessel path in peripheral vascular endovascular intervention

By simultaneously acquiring preoperative 3D angiography and intraoperative fluoroscopy data, calculating spatial yaw angle and slip differential speed ratio, and comparing them with local anatomical curvature, the problem of not being able to accurately perceive the physical blockage state of the guidewire in existing technologies is solved. This enables objective determination of true and false lumens and path reconstruction, reducing surgical risks.

CN122398458APending Publication Date: 2026-07-17TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
Filing Date
2026-04-22
Publication Date
2026-07-17

Smart Images

  • Figure CN122398458A_ABST
    Figure CN122398458A_ABST
Patent Text Reader

Abstract

本发明公开了外周血管腔内介入术中血管路径三维重建方法及系统，涉及医学影像导航技术领域，包括：同步获取时间序列下的术前三维造影数据、术中二维透视图像及体外绝对推送位移数据，基于术前三维造影数据提取静态血管中心线，构建三维血管参考路径；提取当前时刻的术中二维透视图像中介入器械尖端的法向量，计算所述法向量与对应静态血管中心线的切向量的夹角，获得空间偏航角数据；根据当前时刻所述术中二维透视图像提取体内实际位移数据，计算所述体内实际位移数据与当前时刻的体外绝对推送位移数据的比值，获得滑移差速比数据；其有益效果为：实现了对真假腔状态的客观判定，降低了因感知滞后导致假腔扩大的风险。
Need to check novelty before this filing date? Find Prior Art