Department of Otorhinolaryngology, Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Ear Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China; Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China.
Department of Radiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Clin Radiol. 2021 Mar;76(3):237.e9-237.e14. doi: 10.1016/j.crad.2020.10.001. Epub 2020 Nov 2.
To assess the ability of conventional magnetic resonance imaging (MRI) combined with dynamic contrast-enhanced (DCE)-MRI to accurately identify characteristic imaging findings of Bell's palsy particularly in involved segments.
A retrospective analysis was performed on MRI images of patients with Bell's palsy in Shanghai Ninth People's Hospital from January 2015 to July 2019. DCE-MRI analysis was performed on a SIEMENS Workstation Extended MR Work Space 2.6.3.5 and by using the T1-weighted volumetric interpolated breath-hold examination (VIBE) sequence. Statistical analyses were performed by using SPSS v. 19.0. The chi-square test was used to compare the accuracy of conventional MRI versus DCE-MRI in imaging the involved segment of the facial nerve.
Combined with the results of the surgery, the accuracy of conventional MRI in imaging the involved segments of the affected facial nerves was 38.5% (5/13), but was 92.3% (12/13) for DCE-MRI. There was a statistically significant difference between the two groups (chi-square value is 8.327, p = 0.004).
DCE-MRI is useful to diagnose the involved segments of the affected facial nerve accurately compared to the conventional MRI. This approach has advantages both for the patient, in terms of safety, and for the physician, in terms of the accuracy of the diagnosis.
评估常规磁共振成像（MRI）结合动态对比增强（DCE）-MRI 准确识别贝尔麻痹特征性影像学表现的能力，特别是在受累节段。
回顾性分析 2015 年 1 月至 2019 年 7 月在上海第九人民医院就诊的贝尔麻痹患者的 MRI 图像。DCE-MRI 分析在西门子工作站扩展 MR 工作空间 2.6.3.5 上进行，采用 T1 加权容积内插屏气检查（VIBE）序列。使用 SPSS v. 19.0 进行统计学分析。采用卡方检验比较常规 MRI 和 DCE-MRI 对面神经受累节段成像的准确性。
结合手术结果，常规 MRI 对面神经受累节段的成像准确性为 38.5%（5/13），而 DCE-MRI 为 92.3%（12/13）。两组之间有统计学差异（卡方值为 8.327，p=0.004）。
与常规 MRI 相比，DCE-MRI 对面神经受累节段的诊断更准确。这种方法在患者安全性方面和医生诊断准确性方面都有优势。
