a1 Department of Otolaryngology Head and Neck Surgery, The Catholic University of Korea School of Medicine, Seoul, Korea
Objective: To assess the feasibility of temporal bone magnetic resonance imaging for evaluating the severity and prognosis of idiopathic acute facial nerve palsy.
Methods: Forty-four patients with idiopathic acute facial nerve palsy who had undergone gadolinium-enhanced magnetic resonance imaging were selected retrospectively. The degree of radiological facial nerve enhancement was determined using quantitative analysis (with region-of-interest measurements for separate facial nerve segments) and using subjective visual analysis. The clinical severity of facial nerve palsy was then correlated with the degree of facial nerve enhancement.
Results: The visually determined degree of facial nerve enhancement did not correlate significantly with the House–Brackmann grade at either the early or late stages (p > 0.05). Results using the region-of-interest system were similar (p > 0.05).
Conclusion: Temporal bone magnetic resonance imaging is not essential for patients with acute facial nerve palsy.
(Accepted January 04 2012)
(Online publication July 12 2012)
c1 Address for correspondence: Dr Ki Hong Chang, Department of Otolaryngology Head and Neck Surgery, The Catholic University of Korea School of Medicine, 62 Yeouido-dong, Yeungdeungpo-gu, Seoul 150-713, South Korea Fax: +82 2 789 1148 E-mail: email@example.com
Dr K H Chang takes responsibility for the integrity of the content of the paper
Competing interests: None declared