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多层螺旋CT双动脉期及门静脉期增强扫描在肝脏单发病灶的诊断和鉴别诊断中的应用研究 被引量:4

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摘要 目的:探讨多层螺旋CT双动脉期及门静脉期增强扫描表现特点在肝脏单发病灶诊断及鉴别诊断中的价值。方法:回顾性分析由MSCT四期扫描或三期动态扫描资料和手术病理证实的肝脏单发病灶35例,其中肝细胞肝癌10例,胆管细胞癌8例,肝血管瘤10例,转移瘤5例,华支睾肝吸虫病单发炎性结节2例。结果:肝细胞肝癌除2例呈"三低"病灶以外,其余8例均呈动脉早期肿瘤实质强化不明显,内可见肿瘤血管影,动脉晚期肿瘤实质明显强化或轻度强化,肿瘤血管显影较前明显或不显影,门静脉期肿瘤实质强化较前明显或较前减弱。胆管细胞癌8例动脉早期肿瘤未见明显强化,动脉晚期及门静脉期肿瘤边缘轻度强化,且肿瘤有从边缘向中心及渐强强化趋势,其中6例肿瘤周围及远端胆管扩张。肝血管瘤10例动脉早期病灶边缘可见动脉血管影及明显强化片状或环形高密度影,动脉晚期和门静脉期病灶强化有从边缘向中心强化趋势,强化密度大致与同期动脉血管密度一致或略高于同期动脉血管密度。转移瘤5例,动脉早期、动脉晚期肿瘤边缘呈渐强明显环形强化,其内呈渐强轻度强化,门静脉期肿瘤边缘环形强化渐弱,其内轻度强化渐强。华支睾肝吸虫病单发炎性结节2例动脉早期、动脉晚期及门静脉期病灶边缘呈渐强强化趋势,内强化不明显。结论:肝脏单发病灶在多层螺旋CT双动脉期及门静脉期增强扫描中具有表现特点,所以多层螺旋CT在肝脏单发病灶诊断及鉴别诊断中具有重要的价值。
出处 《吉林医学》 CAS 2013年第35期7426-7427,共2页 Jilin Medical Journal
基金 广东佛山市顺德区医学科研重点项目[项目编号:2011077]
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