CT心脏冠脉检查技术及技巧培训课件.ppt

CTCT心脏冠脉检查技术及技心脏冠脉检查技术及技巧医学课件巧医学课件Detector 230 msec0180单扇区采集单扇区采集SnapShot SnapShot 双扇区采集双扇区采集SnapShot SnapShot 135 msecDetector 1135 msecDetector 2018065 msecDetector 165 msec 65 msec 65 msecDetector 2Detector 3Detector 40180四扇区采集四扇区采集SnapShotSnapShot右室对比剂浓度太高，影响右冠观察右室经盐水冲刷，基本无药，右冠显示清晰HU 0 100 200 300 400 70 340 70 340HU 0 100 200 300 40070 340HU 0 100 200 300 400 70 340HU 0 100 200 300 400