摘要 :目的 研究自由呼吸状态下应用三维导航技术行冠状动脉磁共振血管造影(CMRA)的成像技术，并评价此技术在缺血性心脏病方面的诊断价值。 方法 运用1.5T超导型MR扫描仪和心脏相控阵线圈，自由呼吸下状态下，应用脂肪抑制、心电向量门控、真性稳态快速进动回波成像(B-TFE)序列多角度双斜面扫描，结合三维自动导航技术(3D-SELF-Navigator)对35例受检者进行CMRA成像。 结果 全部受检者均能合作完成检查。左冠状动脉主干、右冠状动脉近中段显示满意率为97.14%(34.35)，CMRA总显示成功率为91.42%(32.35)。结论 自由呼吸实时导航结合B-TFE序列CMRA对冠状动脉主干及主要分支显示满意，可初步用于临床缺血性心脏病患者的筛选检查。

    关键词 :冠状动脉;血管造影;磁共振成像

    Clinic application of free-breathing coronary artery magnetic resonance angiography in combination with self-navigator technology

    ZHANG Tao，XI Jian-ning GUO Chai-feng，et al.

    (Department of Radiology，The Second Affiliated Hospital of Xuzhou Medical College，Xuzhou，Jiangsu221006，China)

    Abstract:Objective To study the effect of free breathing in combination with3D self-navigator technology on CMRA and to assess the diagnostic value of the technology for ischemic heart disease.Methods CDMA was performed in thirty-five subjects under free breathing and fat suppression ......