Chen Yuefeng, Zhang Kai, Xu Yanfeng, Che Yanxu, Guan Linna, Li Yefeng
Department of CT diagnosis, Cangzhou Central Hospital, Cangzhou 061001, Hebei Province, People's Republic of China.
Teaching and Research Room of English, Department of Humanities and Social Sciences, Cangzhou Medical College, Cangzhou 061001, Hebei Province, People's Republic of China.
Am J Otolaryngol. 2018 Mar-Apr;39(2):150-152. doi: 10.1016/j.amjoto.2017.12.003. Epub 2017 Dec 5.
This study aimed to investigate the reliability of temporal bone high-resolution CT (HRCT) in patients with traumatic facial paralysis.
HRCT with cross-sectional scanning and multi-planar reformation (MPR) was performed on 26 cases with traumatic facial paralysis, and the preoperative imaging manifestations were compared with surgical findings.
Preoperative HRCT revealed fallopian canal damage at the posterior genu in 1 case, geniculate ganglion in 22 cases, labyrinthine segment in 4 cases, tympanic segment in 13 cases and mastoid segment in 0 case, while surgical findings confirmed fallopian canal damage at the posterior genu in 7 cases, geniculate ganglion in 23 cases, labyrinthine segment in 4 cases, tympanic segment in 17 cases and mastoid segment in 7 cases. The accuracy of temporal bone HRCT in revealing damage at those segments of fallopian canal was 14.3%, 95.7%, 100%, 76.5, and 0%, respectively.
Temporal bone HRCT can generally estimate the extent of damage and provide important information for traumatic facial paralysis before surgery. However, it is unreliable in revealing the damage of fallopian canal at the posterior genu and mastoid segment.
本研究旨在探讨颞骨高分辨率CT（HRCT）在创伤性面瘫患者中的可靠性。
对26例创伤性面瘫患者进行横断面扫描及多平面重建（MPR）的HRCT检查，并将术前影像学表现与手术结果进行比较。
术前HRCT显示膝状神经节后段面神经管损伤1例，膝状神经节损伤22例，迷路段损伤4例，鼓室段损伤13例，乳突段损伤0例；手术结果证实膝状神经节后段面神经管损伤7例，膝状神经节损伤23例，迷路段损伤4例，鼓室段损伤17例，乳突段损伤7例。颞骨HRCT显示面神经管各段损伤的准确率分别为14.3%、95.7%、100%、76.5%和0%。
颞骨HRCT一般可评估创伤性面瘫的损伤范围，为术前提供重要信息。然而，其在显示膝状神经节后段和乳突段面神经管损伤方面不可靠。
