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1.5T超导型全身磁共振弥散加权成像对肝脏良恶性病变诊断价值分析 被引量:32

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摘要 目的:探讨1.5T磁共振扩散加权成像(DWI)对肝脏良恶性病变鉴别诊断的临床价值。方法:选择肝脏占位性病变患者87例,共126处病灶,所有患者均行1.5T磁共振检查(MR),给予增强扫描及DWI序列扫描。以术后病理或临床随访为""金标准",观察良恶性肝脏占位性病变MR增强扫描表现,比较增强扫描及DWI序列扫描鉴别诊断良恶性肝脏肿瘤临床效果及良性与恶性肝脏占位性病变ADC值。结果:(1)126处占位性病灶中恶性病变72处,良性病变54处;原发性肝癌低b值ADC值低于血管瘤、肝脓肿,中b值、高b值ADC值低于血管瘤、肝脓肿及转移瘤;转移瘤低b值、中b值、高b值ADC值均低于血管瘤;肝局灶性结节样增生低b值、中b值ADC值均低于血管瘤及肝脓肿,高b值ADC值均低于血管瘤,差异有统计学意义(P<0.05)。(2)DWI序列扫描联合强化扫描诊断肝脏恶性肿瘤灵敏度、特异度、准确率分别为97.22%、100.00%、98.41%,单纯DWI序列扫描分别为70.83%、77.78%、73.81%,强化扫描分别为77.78%、85.19%、80.95%;DWI序列扫描联合强化扫描的灵敏度、特异度、准确率均分别高于单纯DWI序列扫描及强化扫描,差异均有统计学意义(P<0.05)。结论:1.5T磁共振DWI序列有助于提高肝脏良恶性病变鉴别诊断的临床效果。
出处 《陕西医学杂志》 CAS 2019年第1期16-18,共3页 Shaanxi Medical Journal
基金 陕西省社会发展攻关项目(2015SF123)
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