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目的 分析经脾门静脉造影CT肝实质灌注强化的特性。方法 以 3 0例经脾门静脉造影CT检查患者作为研究对象 ,测量扫描时间内肝实质CT值变化 ,并绘制其时间密度曲线 ,同时与肝内肿瘤的CT值变化进行比较。结果 (1)在扫描时间内 ,肝实质被明显灌注强化 ,强化的峰值肝左叶为 (2 18.0± 5 3 .18)HU ,肝右叶为 (2 46.0± 60 .15 )HU ,两者比较有统计学显著性差异 (Ρ <0 .0 5 ) ;(2 )肿瘤与其邻近的肝实质之间密度差为 (65 .3 0± 2 5 .6)HU。结论 经脾门静脉造影CT可使肝实质明显灌注强化 ,显著增加肝实质与肿瘤间的密度反差。
Objective To analyze the characteristics of hepatic parenchymal perfusion enhancement by splenic portal vein angiography. Methods Thirty patients with splenomegaly and portal vein angiography were included in this study. The change of CT value of liver parenchyma during the scan time was measured and the time density curve was plotted. The CT value of the intrahepatic tumor was also compared. Results (1) During the scan time, the parenchyma of the liver was obviously perfusion enhanced. The intensified peak left liver was (2 18.0 ± 5 3.18) HU and the right liver was (2 46.0 ± 60.15) HU, both (P <0.05); (2) The density difference between the tumor and the adjacent liver parenchyma was (65.300 ± 2.56) HU. Conclusion CT through splenic portal vein can significantly enhance the liver parenchyma, significantly increase the density between the liver parenchyma and tumor contrast.