| 磁共振扩散加权成像鉴别诊断胰腺神经内分泌肿瘤和胰腺癌 |
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| 引用本文： | 王英伟,王叶,王海屹,王佳,李金锋,叶慧义.磁共振扩散加权成像鉴别诊断胰腺神经内分泌肿瘤和胰腺癌[J].中华消化病与影像杂志(电子版),2011(1):10-13. |
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| 作者姓名： | 王英伟 王叶 王海屹 王佳 李金锋 叶慧义 |
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| 作者单位： | 解放军总医院放射诊断科,北京100853 |
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| 摘 要： | 目的 探讨磁共振扩散加权成像(DWI)及其表观弥散系数(ADC)在胰腺神经内分泌肿瘤与胰腺癌鉴别诊断中的应用价值.方法 回顾性分析经病理证实的17例神经内分泌肿瘤及16例胰腺癌患者的DWI检查结果(弥散敏感因子b值取0和800 s/mm2),在ADC图上测量肿瘤的最小ADC值,采取非参数检验对所得数据进行统计学检验...
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| 关 键 词： | 胰腺肿瘤 神经内分泌肿瘤 磁共振成像 扩散加权成像 表观弥散系数 |
Diffusion-weighted imageing in the differential diagnosis of pancreatic neuroendocrine tumor and pancreatic cancer |
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| Institution: | WANG Ying-wei, WANG Ye, WANG Hai -yi, WANG Jia, LI Jin feng, YE Hui -yi Department of Radiology, Chinese PLA General Hospital, Beijing 100853, China |
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| Abstract: | Objective To evaluate the diagnostic value of diffusion-weighted magnetic resonance imaging （DWI） and apparent diffusion coefficient （ADC） for differentiating pancreatic neuroendocrine tumor （PNET） from pancreatic cancer （PC）. Methods DWI findings of 17 patients with PNETs confirmed by histopathology and 16 patients with histopathologically-proven PCs were retrospectively evaluated. The minimum ADC （MinADC） values of masses were measured and statistically analyzed with Wileoxon signed-rank test. Results The mean MinADC values of Pane reatic neuroendoerine tumor （PNET）and Pancreatic cancer （PC）were （1.163±0.362）×10^-3mmZ/sand（1.076±0.250）×10^-3mm2]s, respectively. There was no significant difference of MinADC value between of PENT and PC （P =0.663 ）. Conclusion DWI and ADC values are less helpful in differentiation of PNET and PC. |
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| Keywords: | Pancreatic neoplasms Neuroendoerine tumor Magnetic resonance imaging Diffusionweighted imaging Apparent diffusion coefficient |
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