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MRI诊断肝血管瘤的临床应用价值与优势 被引量:1

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摘要 目的:探讨肝海绵状血管瘤的MRI征象,明确MRI在肝海绵状血管瘤中的临床诊断价值与优势。方法:MRI检查用Siemens Verio 3.0T超导型磁共振成像设备对43例肝海绵状血管瘤患者进行MRI检查,常规平扫序列:T1WI加权像应用FLASH序列,T2WI加权采用HASTER,FS-TSE(脂肪抑制方法为频率选择饱和法)动态增强采用VIBE序列。结果:43例病例共发现50个病灶,T1WI均呈低信号病灶,T2WI均呈高信号或明显高信号表现,并且随着回波时间的延长,病灶的高信号越来越强形成所谓的灯泡征;MRI增强扫描:增强初期血管瘤病灶1.0~2.0 cm,均匀性强化,边缘模糊,消退较慢。3 cm以上病灶增强初期,从边缘开始呈结节状强化,或团状增强影逐渐向病灶中心渗透性强化,呈"慢显慢退"特征。结论:肝海绵状血管瘤在MRI图像中有其特征性表现,MRI诊断肝海绵状血管瘤比CT和B超有明显的优势。
出处 《吉林医学》 CAS 2011年第23期4826-4827,共2页 Jilin Medical Journal
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