基于冠状动脉CTA图像对冠状动脉空间扭曲程度的量化测量

发布时间：2018-11-18 12:26

【摘要】：目的提出对冠状动脉的扭曲程度进行准确的测量评价的新方法,为明确冠状动脉扭曲的所造成的影响提供有利条件。方法连续录入72例临床拟诊冠心病且均接受256排冠状动脉电子计算机断层扫描血管造影(CTA)检查患者的图像,经后处理后,提取心外膜下3支主要冠状动脉血管中轴,获取其在3维空间中的坐标,并对扭曲系数进行量化测量。结果心外膜下3支主要冠状动脉的三维空间扭曲系数分别为:左前降支6.66±7.54,左回旋支13.43±12.85,右冠状动脉17.61±7.67。通过对冠状动脉扭曲的建模检验证明该方法对扭曲评价的效果良好。结论此方法能对冠状动脉在三维空间的扭曲程度进行准确的定量化分析,且结果不受造影投射面、人为测量误差及血管长度的影响。
[Abstract]:Objective to propose a new method for accurate measurement and evaluation of the degree of coronary artery distortion in order to provide favorable conditions for determining the effect of coronary artery distortion. Methods Seventy-two consecutive patients with clinically suspected coronary heart disease were examined by (CTA). After post-processing, the central axis of 3 main coronary arteries under epicardium was extracted. The coordinate in 3D space is obtained and the distortion coefficient is measured quantitatively. Results the three dimensional distortion coefficients of the three main coronary arteries under epicardium were 6.66 卤7.54 for the left anterior descending branch, 13.43 卤12.85 for the left circumflex branch and 17.61 卤7.67 for the right coronary artery. The modeling test of coronary artery distortion proves that the method has good effect on distortion evaluation. Conclusion this method can accurately quantify the degree of distortion of coronary artery in three-dimensional space, and the results are not affected by the projection surface, artificial measurement error and vascular length.
【作者单位】：第三军医大学大坪医院野战外科研究所心血管内科;重庆邮电大学计算机科学与技术系;第三军医大学大坪医院野战外科研究所影像诊断科;重庆大学土木工程学院;
【分类号】：R543.3;R816.2

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