CAJ | 학술논문

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。
목적：제출대관상동맥적뉴곡정도진행준학적측량평개적신방법,위명학관상동맥뉴곡적소조성적영향제공유리조건。방법련속록입72례림상의진관심병차균접수256배관상동맥전자계산궤단층소묘혈관조영(CTA)검사환자적도상,경후처리후,제취심외막하3지주요관상동맥혈관중축,획취기재3유공간중적좌표,병대뉴곡계수진행양화측량。결과심외막하3지주요관상동맥적삼유공간뉴곡계수분별위：좌전강지6.66±7.54,좌회선지13.43±12.85,우관상동맥17.61±7.67。통과대관상동맥뉴곡적건모검험증명해방법대뉴곡평개적효과량호。결론차방법능대관상동맥재삼유공간적뉴곡정도진행준학적정양화분석,차결과불수조영투사면、인위측량오차급혈관장도적영향。
Objective To quantitate coronary tortuosity and provide favorable conditions for understanding the hemodynamic effects caused by coronary tortuosity.Methods We obtained all images from 72 patients who received coronary computed tomo-graphy scanning.After image post-processing,we extracted the medial axis of three main coronary vessel and analysed its coordi-nates on three dimensions.Then we calculated the tortuosity coefficient of coronary artery.Results Tortuosity coefficient was 6.66±7.54 in anterior descending,13.43±12.85 in left circumflex,and 1 7.61 ±7.67 in right coronary artery.We had proved its validity by the changes in morphology with simulated shapes.Conclusion We proposed a new method for quantitating coronary tor-tuosity,by computed tomography coronary imaging.The measurement results would not be affected by projection plane,vessel length or other artificial factors.