双指数模型DWI预测鼻咽癌分化程度的初步研究
发布时间：2018-04-19 05:20
本文选题：鼻咽癌 + 磁共振成像 ； 参考：《放射学实践》2015年04期
【摘要】：目的:探讨双指数模型磁共振扩散加权成像(DWI)对鼻咽癌(NPC)分化程度的预测价值。方法:根据肿瘤的分化程度,将33例经病理证实的非角化型NPC患者分为分化组(14例)和未分化组(19例)。所有患者均行双指数模型DWI检查,比较2组中DWI参数值(ADCstand、ADCslow、ADCfast和Ffast值)的差异。结果:分化型NPC的ADCstand、ADCslow、ADCfast和Ffast值分别为(0.920±0.131)×10-3 mm2、(0.680±0.115)×10-3 mm2、(22.3±13.9)mm2/s和0.316±0.078;未分化型NPC的ADCstand、ADCslow、ADCfast和Ffast值分别为(0.952±0.203)×10-3 mm2/s、(0.672±0.116)×10-3 mm2/s、(17.8±20.3)mm2/s和0.299±0.120;仅ADCfast值在两组间差异有统计学意义(P0.05)。ADCfast值预测NPC分化程度的敏感度为85.7%,特异度为63.2%。结论:ADCfast值对预测鼻咽癌的分化程度具有一定价值。
[Abstract]:Objective: to evaluate the value of DWI in predicting the differentiation of nasopharyngeal carcinoma (NPC) with diffusion weighted Mr imaging (DWI).Methods: according to the degree of tumor differentiation, 33 patients with non keratinized NPC confirmed by pathology were divided into differentiation group (n = 14) and undifferentiated group (n = 19).All patients were examined by double index model DWI, and the differences of DWI parameters were compared between the two groups.缁撴灉:鍒嗗寲鍨婲PC鐨凙DCstand,ADCslow,ADCfast鍜孎fast鍊煎垎鍒负(0.920卤0.131)脳10-3 mm2,(0.680卤0.115)脳10-3 mm2,(22.3卤13.9)mm2/s鍜，
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