A novel imaging scoring method for identifying facial canal dehiscence: an ultra-high-resolution CT study.

ABSTRACT:

Objectives

Facial canal dehiscence (FCD), typically found in the tympanic segment, is a risk factor for facial nerve injury. An imaging scoring method was proposed to identify FCD based on ultra-high-resolution CT.

Methods

Forty patients (21 females and 19 males, mean age 44.3 ± 17.4 years), whose tympanic facial canal (FC) was examined during otological surgery, were divided into the FCD group (n = 29) and the control group (n = 11) based on surgical findings. Imaging appearance of tympanic FC was scored 0-3: 0 = no evident bony covering, 1 = discontinuous bony covering with linear deficiency, 2 = discontinuous bony covering with dotted deficiency, and 3 = continuous bony covering. Both lateral and inferior walls were assigned a score as L_FCD and I_FCD,

SUBMITTER: Tang R 

PROVIDER: S-EPMC10017601 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature