MR增强扫描及曲面重建在面神经炎中的应用

发布时间：2019-03-04 20:15

【摘要】：目的探讨MR增强扫描及曲面重建(CPR)在面神经炎诊断中的应用价值。方法对30例面神经炎患者行MR增强扫描。通过GE AW 4.5工作站观察患者颅内面神经受累情况,测量面神经及邻近颞叶组织的信号强度,计算面神经与同一层面邻近颞叶的信号强度比值(SIR)。通过Philips EBW工作站进行面神经的CPR重建,整体观察患者面神经的颅内走行及受累情况。结果 30例面神经炎患者中,患侧面神经膝状神经节、鼓室段、迷路段、内听道段及乳突段的SIR分别为1.59±0.28、1.16±0.16、1.38±0.20、1.30±0.19及0.96±0.14,健侧SIR分别为1.08±0.19、0.74±0.13、0.81±0.13、0.83±0.08及0.69±0.12,各受累部位患侧面神经SIR与健侧差异均有统计学意义(P均0.001)。CPR图像可直观显示面神经受累部位及面神经的颅内走行情况。结论面神经MR增强扫描及CPR技术有助于清晰显示面神经炎患者颅内面神经走行及受累情况。
[Abstract]:Objective to evaluate the value of MR enhanced scanning and curved surface reconstruction (CPR) in the diagnosis of facial neuritis. Methods MR enhanced scanning was performed in 30 patients with facial neuritis. Intracranial facial nerve involvement was observed by GE AW 4.5.The signal intensity of facial nerve and adjacent temporal lobe was measured, and the signal intensity ratio of facial nerve to adjacent temporal lobe was calculated. The ratio of signal intensity of facial nerve to adjacent temporal lobe on the same plane was calculated by (SIR). The CPR reconstruction of facial nerve was carried out by Philips EBW workstation. The course and involvement of facial nerve were observed. Results in 30 patients with facial neuritis, the SIR of geniculate ganglia, tympanic segment, labyrinthine segment, internal auditory segment and mastoid segment were 1.59 卤0.28,1.16 卤0.16,1.38 卤0.20,1.30 卤0.19,0.96 卤0.14,1.59 卤0.28,1.16 卤0.16,1.38 卤0.20,1.30 卤0.19,0.96 卤0.14,respectively. The SIR of healthy side were 1.08 卤0.19,0.74 卤0.13,0.81 卤0.13,0.83 卤0.08,0.69 卤0.12respectively. There was a significant difference between the affected lateral nerve and the healthy side (P 0.001). The SIR images could directly show the facial nerve involved and the intracranial course of the facial nerve (P < 0.05), but there was no significant difference between the affected sites and the healthy ones (P < 0.05). Conclusion MR enhanced scan of facial nerve and CPR technique can clearly show the course and involvement of facial nerve in patients with facial neuritis.
【作者单位】：西安交通大学附属西安市中心医院放射科;西安市第三医院放射科;
【基金】：陕西省社发攻关计划项目(2014K12-09)
【分类号】：R445.2;R745.12

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