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快速注射造影剂MDCT多期动态扫描诊断小肝癌的研究

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摘要 目的通过快速注射造影剂多期动态增强扫描对小肝癌的研究,进一步提高对小肝癌的定性诊断。方法回顾分析26例35个病灶经证实的小肝癌的影像学资料;扫描采用飞利浦MX8000IDT16排螺旋CT进行检查,增强扫描是快速注射造影剂100~120mL,速率达到4~4.5mL/S,分别于动脉早期18s、动脉晚期30~32s、门脉期55~60s、平衡期180s及延迟期5min等多期动态行全肝扫描,然后对病灶在不同时相的图像进行分析、对比。结果本组26例35个病灶中肝右叶25个,肝左叶10个;动脉早期呈高密度为12个(平均CT值为73.6HU);动脉晚期呈高密度病灶为21个(CT值平均83.2HU);门脉期为低密度病灶有25个,呈稍高密度病灶6个,等密度病灶4个,平衡期180s或延迟期5min病灶均呈低密度,2个病灶多期增强均未见强化。结论MDCT多期动态增强扫描能提高小肝癌的检出率。
出处 《中国现代医生》 2009年第24期155-156,共2页 China Modern Doctor
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