Method and device for obtaining tarsal scaphoid coverage angle based on medical image, equipment and medium

CN122415567APending Publication Date: 2026-07-17BEIJING WANDONG MEDICAL TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING WANDONG MEDICAL TECH CO LTD
Filing Date
2026-05-07
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the measurement accuracy and efficiency of two-dimensional imaging and manual three-dimensional information acquisition are low, making it difficult to meet the needs of large-scale clinical case analysis or rapid preoperative assessment.

Method used

By using a medical imaging-based method, the normal vectors of the talus and scaphoid bones are automatically calculated. The talonavicular coverage angle is obtained by using multi-directional projection and local curvature calculation of the point clouds on the surface of the talus and scaphoid bones, thus avoiding manual intervention and two-dimensional projection conversion.

Benefits of technology

It improves the repeatability and accuracy of measurements, reduces interference from changes in body position and differences in projection angle, and has greater applicability, meeting the needs of large-scale clinical case analysis and rapid preoperative assessment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122415567A_ABST
    Figure CN122415567A_ABST
Patent Text Reader

Abstract

本申请涉及基于医学影像的距舟覆盖角获取方法、装置、设备及介质。该方法包括:基于提取的距骨表面点云获取多方位的距骨轴,将所述距骨表面点云基于多方位的所述距骨轴进行投影,拟合得到距骨关节面的法向量;基于提取的舟骨表面点云获取舟骨前后轴,根据所述舟骨前后轴对所述舟骨表面点云进行投影,并对舟骨投影结果进行局部曲率计算及拟合,得到舟骨关节面的法向量;根据所述距骨关节面的法向量与所述舟骨关节面的法向量计算距舟覆盖角。本申请能够基于算法实现距舟覆盖角的自动测量,相对二维拍摄或人工三维信息获取而言测量准确率及效率更高,更能满足临床大规模病例分析或快速术前评估的需求。
Need to check novelty before this filing date? Find Prior Art