Liu Lihua, Huang Huimin, Ji Xiaodong, Wang Wei, Hu Ming
Department of Radiology，Tianjin 1st Central Hospital，Tianjin，300192，China.
Department of Radiology，Huang He Hospital.
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2025 Jan;39(1):29-33;41. doi: 10.13201/j.issn.2096-7993.2025.01.007.
To exploring the value of MR neuroimaging for quantitative assessment of the facial nerve and peripheral lymph nodes in patients with acute peripheral facial paralysis. Based on a prospective experimental design, 32 patients with idiopathic peripheral facial palsy were enrolled in the experiment. Based on MR neuroimaging technology, MR high-resolution thin-layer images of bilateral facial nerves were acquired. The diameters of different segments of the bilateral facial nerve were measured, including the labyrinthine segment, the geniculate ganglion, the horizontal segment, the vertical segment, the stem-mammary foramen segment, the trunk of the parotid segment, the temporal trunk, and the cervical trunk, as well as the quantitative indicators of peri-auricular and parotid lymph nodes（number, length and diameter of the largest lymph nodes）. Differences in quantitative indices of nerve diameter and peripheral lymph nodes between the paraplegic and healthy sides were compared using the paired t-test and Wilcoxon signed rank test. The diameter of geniculate ganglion, mastoid foramen stem, parotid main trunk, temporal facial trunk, and cervical facial trunk were notably increased on the facial paralysis side compared to the contralateral side（<0.05）. However, no significant differences were observed in the diameter of labyrinthine segment, horizontal segment, or vertical segment compared to the contralateral side. There were significantly more periauricular lymph nodes on the facial paralysis side than the contralateral side（=0.001）. MR neuroimaging enables the quantitative assessment of structural changes in the facial nerve of patients with acute peripheral facial paralysis, demonstrating nerve enlargement in the geniculate ganglion, stylomastoid foramen segment, main trunk of the parotid segment, temporal facial trunk, and cervical facial trunk. Additionally, an increased number of periauricular lymph nodes is observed on the affected side. These findings may aid clinicians in assessing the efficacy of treatments and predict the prognosis of these patients.
探讨磁共振神经成像在急性周围性面瘫患者面神经及周围淋巴结定量评估中的价值。基于前瞻性实验设计，32例特发性周围性面瘫患者纳入实验。基于磁共振神经成像技术，获取双侧面神经的磁共振高分辨率薄层图像。测量双侧面神经不同节段的直径，包括迷路段、膝状神经节、水平段、垂直段、茎乳孔段、腮腺段主干、颞支及颈支，以及耳周和腮腺淋巴结的定量指标（最大淋巴结的数量、长度和直径）。采用配对t检验和Wilcoxon符号秩检验比较瘫痪侧与健侧神经直径及周围淋巴结定量指标的差异。与对侧相比，面瘫侧膝状神经节、乳突孔茎部、腮腺主干、颞面干及颈面干的直径明显增大（<0.05）。然而，与对侧相比，迷路段、水平段或垂直段的直径未观察到显著差异。面瘫侧耳周淋巴结明显多于对侧（=0.001）。磁共振神经成像能够定量评估急性周围性面瘫患者面神经的结构变化，显示膝状神经节及其分支、腮腺段主干、颞面干及颈面干的神经增粗。此外，患侧耳周淋巴结数量增加。这些发现可能有助于临床医生评估治疗效果并预测这些患者的预后。
