【作者】 付玲； 王胜军； 赵凯； 岳勇； 康雁；

【Author】 FuLing1 WangShengjun23 ZhaoKai23 YueYong4 KangYan13(1.Sino-Dutch biomedical and information engineering school,Northeastern University,ShenYang,LiaoNing,China,110004;2.Information school,Northeastern University,ShenYang,LiaoNing,China,110004;3.Neusoft Medical Systems Co.,Ltd.,ShenYang,LiaoNing,China,110179;4.Radiology department,ShengJing hospital of China Medical University,ShenYang,LiaoNing,China,110004)

【机构】 辽宁省沈阳市东北大学中荷生物医学与信息工程学院； 辽宁省沈阳市东北大学信息学院； 辽宁省沈阳市东软医疗系统有限公司； 辽宁省沈阳市中国医科大学附属盛京医院放射科；

【摘要】 基于心脏CT造影图像的计算机辅助诊断对于提高冠状动脉疾病诊断的准确性和效率具有重大的临床意义,而其中冠状动脉中心线的提取,为冠脉血管的清晰可视以及狭窄的定量检测提供了前提和基础,是其中不可缺少的一环。本文使用一种改进的追踪方法,实现了冠脉中心线的准确提取。中心线提取的追踪方法是根据血管的局部信息和已有中心线的趋势,逐步确定冠脉血管上的中心点。同时在此基础上对这一追踪方法进行了改进,对中心线容易出错的部位,如血管曲率大的部位,冠脉根部,不规则部位,以及冠脉分枝处,进行了额外的判断和调整,保证中心线提取的准确性和稳定性。更多还原

【Abstract】 The Cardio-CAD(Computer-Aided Diagnosis) can make the coronary artery disease diagnosis more precise and efficient.And the centerline extraction of coronary artery is the basis of vessel visualization and quantitative detection of stenosis in Cardio-CAD.In this paper,an improved tracking method has been presented to extract coronary artery centerline precisely.The tracking method can extract vessel center gradually based on the local vessel information and centerline tendency before it.And then some improvements had been done to make sure the centerline extraction is precise and robust enough by adjusting vessel center at positions where the process goes wrong easily.These positions are coronary artery root,large curvature positions,irregular positions and bifurcations.更多还原