心脏磁共振扫描技术.ppt

The First Affiliated Hospital of Soochow University 陈剑华陈剑华 心脏磁共振扫描技术 The First Affiliated Hospital of Soochow University 随着MR技术的快速发展，心脏磁共振检查正朝着更清晰、更精细、更精确的方向发展。The First Affiliated Hospital of Soochow University 回顾 1992年我院在GE Vactra 0.5T上就开展了心脏MR检查 参考文献：谢道海，丁乙，陈学仁，等.电影磁共振对正常人左心功能的测定.中华放射学杂志，1994,28（7）：444-447.The First Affiliated Hospital of Soochow University 心脏磁共振所要解决的 1.心脏的解剖形态 2.心肌的MR信号有无异常 3.心肌的活动情况 4.心肌灌注有无异常 5.有无异常延时强化 6.心功能有无异常 The First Affiliated Hospital of Soochow University 心脏磁共振检查前准备 1.呼吸屏气训练 2.心电门控的链接 3.操作流程的回顾 The First Affiliated Hospital of Soochow University 磁共振心脏扫描定位 首先进行心脏冠、矢、横三方位定位图 The First Affiliated Hospital of Soochow University 磁共振心脏扫描定位 在横位上通过左室心尖与二尖瓣中点的连线定出两腔心 The First Affiliated Hospital of Soochow University 磁共振心脏扫描定位 在两腔心上通过左室心尖与二尖瓣中点的连线定出四腔心 The First Affiliated Hospital of Soochow University 磁共振心脏扫描定位 在四腔心上通过左室心尖与二尖瓣中点的连线的垂直线定出左室的短轴位 The First Affiliated Hospital of Soochow University 磁共振心脏扫描定位 在短轴位上通过室间隔中点并垂直平分左右室定出准四腔心 The First Affiliated Hospital of Soochow University 磁共振心脏扫描定位 在短轴位上通过室间隔中点并垂直平分左右室定出准四腔心 The First Affiliated Hospital of Soochow University 扫描前心电门控补偿 The First Affiliated Hospital of Soochow University 磁共振心脏扫描 1.首先进行短轴位T1、T2、T2压脂序列扫描 T1 T2 T2 tirm The First Affiliated Hospital of Soochow University 磁共振心脏扫描 参考序列：1.T1:tse_9_db_ t1_iPAT 2.T2:tse_17_db_t2_iPAT 3.T2 tirm:tirm_15_db_t2_iPAT The First Affiliated Hospital of Soochow University 磁共振心脏电影扫描前准备 做trufi_freqScout序列 The First Affiliated Hospital of Soochow University 磁共振心脏电影扫描前准备 1.呼吸屏气训练 2.心电门控的链接 3.操作流程的回顾 The First Affiliated Hospital of Soochow University 磁共振心脏电影扫描 2.进行短轴位心脏电影序列扫描 The First Affiliated Hospital of Soochow University 磁共振心脏电影扫描 参考序列：cine_tf2d12_retro_iPAT The First Affiliated Hospital of Soochow University 磁共振心脏电影扫描 3.进行四腔心心脏电影序列扫描 The First Affiliated Hospital of Soochow University 磁共振心脏电影扫描 参考序列：cine_tf2d12_retro_iPAT The First Affiliated Hospital of Soochow University 磁共振心脏电影网格扫描 4.进行短轴位网格心脏电影序列扫描 The First Affiliated Hospital of Soochow University 磁共振心脏电影网格扫描 参考序列：cine_fl2d9_grid The First Affiliated Hospital of Soochow University 磁共振心脏动态扫描 5.进行短轴位及四腔心动态序列扫描 The First Affiliated Hospital of Soochow University 磁共振心脏动态扫描 7ml磁共振造影剂（Gd-DTPA）在动态扫描开始后2秒内快速注射 参考序列：dynamic_tfl_sr_ePAT The First Affiliated Hospital of Soochow University 磁共振心脏动态扫描 The First Affiliated Hospital of Soochow University 磁共振心脏延时扫描 1.动态扫描结束后，将剩余的8ml磁共振造影剂（Gd-DTPA）全部注射完毕。2.延时20min扫描。3.扫描前做TI Scout。参考序列：TI_Scout The First Affiliated Hospital of Soochow University 磁共振心脏延时扫描 The First Affiliated Hospital of Soochow University 磁共振心脏延时扫描 The First Affiliated Hospital of Soochow University 磁共振心脏延时扫描 The First Affiliated Hospital of Soochow University 磁共振心脏延时扫描 参考序列：DE_high-res_tfl31_psir_seg The First Affiliated Hospital of Soochow University 磁共振心功能分析 将所有短轴位 电影序列及四腔 心电影序列装载 到Argus软件中 进行处理 The First Affiliated Hospital of Soochow University 磁共振心功能分析 The First Affiliated Hospital of Soochow University 磁共振心功能分析 The First Affiliated Hospital of Soochow University 磁共振心功能分析 ED：舒张末期 ES：收缩末期 EF：射血分数 EDV：舒张末期容积 ESV：收缩末期容积 SV：每博输出量 CO：心博出量 The First Affiliated Hospital of Soochow University 磁共振心功能分析 The First Affiliated Hospital of Soochow University 磁共振心功能分析 The First Affiliated Hospital of Soochow University 磁共振心功能分析 The First Affiliated Hospital of Soochow University 磁共振心功能分析 The First Affiliated Hospital of Soochow University 磁共振心功能分析 The First Affiliated Hospital of Soochow University 磁共振心功能分析 The First Affiliated Hospital of Soochow University 磁共振心功能分析 The First Affiliated Hospital of Soochow University 磁共振心功能分析 The First Affiliated Hospital of Soochow University 心脏磁共振检查成功的关键 1.呼吸屏气训练 2.心电门控的链接 3.操作流程的回顾 The First Affiliated Hospital of Soochow University jiahuachen_