腹部器官优化增强扫描的研究  

Study of Optimal Enhanced Scan of Abdominal Organs

作　　者：张华[1] 吴国庚[1] 杨明[1] 周诚[1] 刘旭[1] 武凤菊[1] 

机构地区：[1]卫生部北京医院放射科,北京100730

出　　处：《中国医学影像技术》2000年第12期1083-1084,共2页Chinese Journal of Medical Imaging Technology

摘　　要：目的　通过对腹部增强后器官时间 密度曲线的分析 ,对获取最佳的腹部增强扫描效果进行探讨。方法　对 2 0例受试者以 3ml/s的速度注射 30ml对比剂后 12s在肝门下 10mm层面行电子束CT扫描 ,采用Flow扫描方式。分别计算肝脏、脾脏和胰腺强化的峰值时间 (PT)、上升半峰值时间 (RHT)、下降半峰值时间 (FHT)及其时间 密度曲线。结果　肝脏　PT 6 5 + / - 5sRHT42 + / - 3sFHT 111+ / - 10s脾脏　PT46 + / - 3sRHT2 6 + / - 3sFHT92+ / - 10s胰腺　PT35 + / - 4sRHT 2 0 + / - 2sFHT 6 4+ / - 3s。结论　不同器官获取最佳强化效果的时间不同 ,RHT到FHT这段时间为腹部器官强化的最佳时期。Objective To discuss the optimal enhanced scan of abdominal organs by analysing time-density curve. Methods 20 patients received flow scan by EBCT just 10mm below hilus hepatis 12s after bolus injection of 30ml contrast medium at the rate of 3ml/s, and calculated enhanced peak time(PT),rising half time(RHT),falling half time(FHT) and time-density curve of liver,spleen and pancreas respectively. Results Liver PT 65+/-5s RHT 42+/-3s FHT 111+/-10s,spleen PT 46+/-3s RHT 26+/-3s FHT 92+/-10s,pancreas PT 35+/-4s RHT 20+/-2s FHT 64+/-3s. Conclusion The period between RHT and FHT is the best enhanced phase of abdominal organs. [

关 键 词：腹部 体层摄影术 X线计算机 CT 

分 类 号：R816.5[医药卫生—放射医学]