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作 者:钟群[1] 张雪林[2] 张玉忠[2] 成官迅[2] 陈自谦[1]
机构地区:[1]南京军区福州总医院医学影像中心,福建福州350025 [2]南方医科大学南方医院影像中心,广东广州510515
出 处:《南方医科大学学报》2008年第11期1986-1989,共4页Journal of Southern Medical University
基 金:广东省医学科研基金(A2005397);福建省青年科技人才创新项目(2006F3105)
摘 要:目的应用CT灌注成像研究肝炎后肝硬化演变过程中的原发性肝癌血流动力学变化规律。方法肝炎肝纤维化伴原发性肝癌或肝炎后肝硬化伴原发性肝癌患者32例,进行同层动态扫描,测量出肝脏实质与原发性肝细胞癌实体部分的血流量(BF)、血容量(BV)、平均通过时间(MTT)、毛细血管表面通透性(PS)、肝动脉灌注分数(HAF)、IRF到达时间(IRFTO)等灌注指标,每个指标均应用配对t检验,分别对肝脏实质与原发性肝癌进行统计学比较。结果与肝脏实质比较,原发性肝癌的BF、BV、PS、HAF值升高,MTT、IRFTO值则下降(P<0.05)。结论在肝炎后肝硬化演变过程中,原发性肝癌有着不同于其本底基础的显著的血流动力学变化。Objective To investigate the hemodynamic changes of primary hepatocellular carcinoma (HCC) evolved from hepatic cirrhosis using CT perfusion imaging. Methods Thirty-two patients with primary hepatocellular carcinoma evolved from virus-induced fibrosis or cirrhosis underwent dynamic CT scanning of the target slices for 60 min. The perfusion parameters of the hepatic parenchyma and HCC including the blood flow (BF), blood volume (BV), mean transit time (MTT), permeability-surface area product (PS), hepatic arterial fraction (HAF), IRF time of arrival (IRF TO) were obtained. Paired-sample t test was used to determine the differences in the perfusion parameters between the hepatic parenchyma and the primary HCC mass: Results Compared with hepatic BF (117.13±31.05 ml. 100mg^-1 · min^-1), BV (14.73±3.91 ml· 100 mg^-1), PS (31.93±5.91 ml· 100 mg^-1·min^-1), HAF (25.02±8.19%), MTT (12.79±3.31 s), IRF TO (3.14±1.09 s), the primary HCC mass showed significant increments in the BF (239.69±96.07 ml· 100 mg^-1 ·min^-1), BV (20.26±6.73 ml· 100 mg^-1), PS (37.50±9.50 ml· 100 mg^-1·min^-1), HAF (68.97±15.22%) with decreased MTT (7.17±1.38 s) and IRF TO (2.42±0.94 s). Significant differences were found in all the perfusion parameters between the hepatic parenchyma and HCC (P〈0.05). Condusiun Liver perfusion parameters can represent the hemodynamic changes in the HCC derived from hepatic cirrhosis.
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