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细菌性肝脓肿的CT和MRI诊断 被引量:6

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摘要 目的探讨细菌性肝脓肿的CT及MRI影像学特征,提高细菌性肝脓肿影像诊断及鉴别诊断水平。方法回顾性分析经临床或穿刺病理证实的24例细菌性肝脓肿的CT和MRI表现。24例中18例经CT平扫和增强检查,其中3例同时经MRI检查,6例仅经MRI平扫和增强检查。结果 24例共26个病灶(右叶16个,左叶8个,尾叶2个),CT和MRI表现为类圆形15例,椭圆形3例,不规则形8例。CT增强扫描动脉期17个病灶均表现为病灶边缘极轻或轻度环状强化,其中有8个出现灶周楔形或片状一过性强化。肝脓肿MRI多表现为不均匀的长T1、长T2信号,时间-信号曲线表现为"速升-缓升"样变化;脓肿壁时间-信号曲线表现为渐进性强化。结论 CT、MRI能较好地显示肝脓肿的特征,在脓肿定位、定性及鉴别诊断上具有重要意义。
出处 《中国临床研究》 CAS 2011年第12期1139-1140,共2页 Chinese Journal of Clinical Research
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