Objective To analyze and study the value of DWI and DCE-MRI in the diagnosis of patients with nasopharyn-geal carcinoma. Methods 75 cases of nasopharyngeal carcinoma patients treated in our hospital from March 2009 to De-cember 2015 were selected and 15 cases of healthy subjects in our hospital were selected as the subjects of this study. Ac-cording to the slope of MRI images of 90 subjects randomly divided into normal group, slope invasion group after treatment, the slope slope improvement group. The diffusion coefficients of the magnetic resonance diffusion weighted images of the three groups were detected and statistically analyzed, and the percentage of the enhanced magnetic resonance imaging, the peak value and the peak time were measured. The value of diffusion coefficient and dynamic enhancement index in the di-agnosis of the course of the invasion of the slope. Results Showed that DWI index comparison, it is found that the slope health group, clivus invasion group, after treatment slope improvement group diffusion coefficient were:(0.03±0.0110)-3mm2/s, (1.06 ±0.4910)-3 mm2/s, (0.27 ±0.1810)-3 mm2/s, knowable, slope assault group measurement data was significantly higher than that of the slope in the healthy group, the slope improvement group. Significant difference, P﹤ 0.05. Three groups of subjects of dynamic enhanced magnetic resonance imaging of each index, clivus invasion group percentage and the peak enhancement were higher than slope health group and slope improvement group. Differences exist, P﹤0.05 the peak time of the slope improvement group was significantly better than that of the health group and the slope of the slope. There were differences, P﹤ 0.05. Conclusion Magnetic resonance diffusion weighted imaging and dynamic contrast enhanced magnetic resonance imaging have good accuracy and sensitivity in the detection of patients with the presence of slope violations. Clinical examination process should be combined with two kinds of technology, the effect is better.%目的：分析和研究针对鼻咽癌患者给予DWI及DCE-MRI在其侵犯斜坡诊断过程中的作用价值。方法方便选取2009年3月—2015年12月来该院治疗的鼻咽癌患者75例和同期来该院体检中心健康的受检者15名作为此次研究的试验对象。根据90例受检者的斜坡MRI图像随机数表分为斜坡健康组、斜坡侵犯组、治疗后斜坡改善组。分别检测和统计3组的磁共振扩散加权像的弥散系数和动态增强磁共振成像的强化百分数、强化峰值、达峰时间等。分析弥散系数和动态增强指标在确诊侵犯斜坡过程中的价值。结果结果显示，DWI指标比较发现：斜坡健康组、斜坡侵犯组、治疗后斜坡改善组弥散系数分别为：（0.03±0.0110)-3mm2/s、（1.06±0.4910)-3mm2/s、（0.27±0.1810)-3mm2/s，可知，斜坡侵犯组测量的数据明显高于斜坡健康组和斜坡改善组。差异有统计学意义，P﹤0.05。3组受检者的动态增强磁共振成像的各指标，斜坡侵犯组的强化百分数和峰值均高于斜坡健康组和斜坡改善组。差异有统计学意义，P﹤0.05。斜坡改善组的达峰时间明显优于斜坡健康组和斜坡侵犯组。差异有统计学意义，P﹤0.05。结论磁共振扩散加权像和动态增强磁共振成像在检测患者存在斜坡侵犯过程中具有良好的精准性和灵敏性。临床检查过程中应结合两种技术，效果更佳。
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