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DWI在急性胰腺炎诊断中的价值 被引量:2

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摘要 目的:探讨DWI及其相应的ADC值在早期急性胰腺炎(AP)诊断中的价值。方法:临床随访及影像学证实的AP患者(AP组)32例及正常对照组(NP组)27例,均行腹部常规序列、DWI(b值为0、500s/mm2)及MRCP扫描。采用双盲法对MR常规序列、DWI诊断AP的阳性率进行比较;分别测量AP组、NP组的ADC值并进行统计学分析;应用MR严重程度指数(MRSI)评分,对AP严重程度进行分级,并与ADC值进行相关性研究。结果:NP组胰腺DWI呈均匀中等信号强度;AP组中23例呈均匀高信号,6例呈不均匀高信号,3例呈中等信号。DWI对AP的检出率为87.5%,明显高于常规序列的62.5%(χ2=6.488,P<0.05);在b=500s/mm2时NP组、AP组的ADC均值分别为(1.82±0.28)×10-3 mm2/s、(1.67±0.17)×10-3 mm2/s,差异有统计学意义(P<0.05);32例AP中,轻度17例,中度11例,重度4例,各组ADC值之间两两比较,轻度组与重度组之间差异有统计学意义(P<0.05)。结论:DWI在AP诊断上明显优于常规序列,结合ADC值,对于AP的早期诊断及其严重程度的评价有一定的意义。
作者 李斌 许维亮
出处 《中国中西医结合影像学杂志》 2012年第5期422-425,共4页 Chinese Imaging Journal of Integrated Traditional and Western Medicine
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参考文献9

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