螺旋CT扫描由于扫描时间短,无间隔,可得到容积扫描信息,同时给病人注射造影剂后,在动脉期、静脉期和平衡期,分别对肝脏进行螺旋扫描,一次就能得到定位、定性诊断。1　材料与方法1.1　材料　搜集1997-10～1999-06月,经三期增强螺旋扫描检查的肝占位病人238人。由CT诊断,并经手术 Due to the short scan time and non-interval, spiral CT scan can obtain the volume scan information. At the same time, the patient is injected with contrast medium, and the liver is spirally scanned at the arterial phase, venous phase and balance period. Once, the localization and the qualitative diagnosis can be obtained . 1 Materials and Methods 1.1 Materials Collection 1997 - 10 ~ 1999 - 06 months, the three enhanced helical scan examination of liver occupying 238 patients. Diagnosed by CT, and by surgery