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MRI扩散加权成像在前列腺疾病诊断中的价值 被引量:1

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摘要 目的探讨MRI扩散加权成像(DWI)对前列腺增生(BPH)和前列腺癌的诊断与鉴别诊断价值。方法收集经穿刺活检,手术病理证实的120例前列腺疾病患者,其中BPH患者72例,前列腺癌患者48例。所有患者均进行MRI常规扫描和DWI扫描,分析BPH和前列腺癌的DWI和表观扩散系数(ADC)图表现,并测量癌肿区的ADC值及BPH的平均ADC值,并进行统计学分析。结果BPH的DWI和ADC图上外周带信号均匀,中央腺体区信号不均匀;前列腺癌病灶在DWI上呈高信号,ADC图呈低信号,受累的精囊,淋巴结转移和骨转移病灶DWI上呈高信号,ADC图上呈低信号。48例前列腺癌的ADC值(78±16)×10-5mm2/s,72例BPH的平均ADC值(146±44)×10-5mm2/s,两者差异有统计学意义(P<0.05)。结论DWI检查在BPH与前列腺癌诊断中有特征性表现,并对2种疾病具有鉴别诊断价值。
作者 杨颖 胡建新
出处 《河北医药》 CAS 2009年第4期446-447,共2页 Hebei Medical Journal
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