吴沛宏 李立 张福君 郑列 黄金华 莫运仙 谢琦 张贵祥 王斌 陈林 李锦清 510060 广州，中山医科大学肿瘤中心影像介入科 中华肿瘤杂志 1999 0 21 6


    关键词：肝肿瘤/放射摄影术；断层摄影术，X线计算机；动脉造影；门脉造影；肝细胞癌/放射摄影术 期刊 zhzlzz 0 临床应用 fur -->


    

【摘要】 目的 探讨螺旋CT扫描在肝动脉造影CT(CT hepatic arteriography, CTHA)和经动脉门脉造影CT(CT arterial portography, CTAP)中的应用价值。方法 分析50例小肝癌灶(直径≤3.0cm) CTAP和CTHA的图像，并与双期增强扫描进行对照。结果 CTAP病灶检出率为92.2%，CTHA病灶检出率为90.1%。可检出0.2～0.5cm的微小癌灶。CTAP和CTHA均可出现非病理性表现，CTAP灌注异常出现率为13.0%，CTHA非病理性强化灶出现率为19.1%。结论 螺旋CT动脉造影能显著减少造影剂用量，提高CT图像质量，CT动脉造影病灶检出率及显示程度明显高于双期增强扫描。结合临床AFP升高和碘油CT表现，CT动脉造影能提高微小肝癌的检出率。CTAP和CTHA结合分析，可减少假阳性率。

The value of spiralCT in CT arterial portography and CT hepatic arteriography

WU Peihong, LI Li, ZHANG Fujun, et al. Cancer Center, Sun Yat-senUniversity of Medical Sciences, Guangzhou 510060

【Abstract】 Objective To evaluate theusefulness of spiral CT in CT arterial portography (CTAP) and CT hepatic arteriography (CTHA). Methods The CTAP and CTHA manifestations in 50 patients withsmall hepatocellular carcinoma (<3 cm in diameter) were analyzed and compared withthose in bi-phase enhanced CT.Results The detection rate of CTAP andCTHA was 92.2% and 90.1%, respectively. They could reveal tumors of 0.2 cm～0.5 cm indiameter. Both CTAP and CTHA gave false-positive findings, such as perfusion defects in13.0% of CTAP and non-pathologic enhancement in 19.1% of CTHA.Conclusion Withthe use of spiral CT technique, the quantity of contrast material administrated in CTAPand CTHA can be considerably reduced, and the quality of CT images signficantly improved.The detection rate of CTAP and CTHA is higher than that of bi-phase enhanced CT.Simultaneous use of both procedures may help decrease the false-positive rate, andincrease the sensitivity of diagnosis for small hepatocellular carcinoma.

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