MR Diagnosis of Facial Neuritis: Diagnostic Performance of Contrast-Enhanced 3D-FLAIR Technique Compared with Contrast-Enhanced 3D-T1-Fast-Field Echo with Fat Suppression
Open Access
- 29 December 2011
- journal article
- research article
- Published by American Society of Neuroradiology (ASNR) in American Journal of Neuroradiology
- Vol. 33 (4), 779-783
- https://doi.org/10.3174/ajnr.a2851
Abstract
BACKGROUND AND PURPOSE: Current MRI with the CE T1-weighted sequence plays a limited role in the evaluation of facial neuritis due to prominent normal facial nerve enhancement. Our purpose was to retrospectively investigate the usefulness of the CE 3D-FLAIR sequence compared with the CE 3D-T1-FFE sequence in facial neuritis patients. MATERIALS AND METHODS: We assessed 36 consecutive patients who underwent temporal bone MR imaging at 3T for idiopathic facial palsy. Two readers independently reviewed CE 3D-T1-FFE and CE 3D-FLAIR images to determine the degree of enhancement in each of 5 segments of the facial nerve. We compared AUCs using the Z-test, compared diagnostic performance of 2 MR techniques with the McNemar test, and evaluated interobserver agreement. The Pearson χ2 test was used for each segment of the facial nerve. RESULTS: The AUC of CE 3D-FLAIR (reader 1, 0.754; reader 2, 0.746) was greater than that of CE 3D-T1-FFE (reader 1, 0.624; reader 2, 0.640; P < .001). The diagnostic sensitivities, specificities, and accuracies were 97.2%, 86.1%, and 91.7%, respectively, for CE 3D-FLAIR, and 100%, 56.9%, and 78.5%, respectively, for CE 3D-T1-FFE. The specificity and accuracy of CE 3D-FLAIR were greater than those of CE 3D-T1-FFE (specificity, P = .029; accuracy, P = .008). The interobserver agreements for CE 3D-FLAIR (κ-value, 0.831) and CE 3D-T1-FFE (κ-value, 0.694) were excellent. Enhancement of the canalicular and anterior genu segments on CE 3D-FLAIR were significantly correlated with the occurrence of facial neuritis (P < .001 for canalicular; P = .032 and 0.020 for anterior genu by reader 1 and reader 2, respectively). CONCLUSIONS: CE 3D-FLAIR can improve the specificity and overall accuracy of MR imaging in patients with idiopathic facial palsy.Keywords
This publication has 24 references indexed in Scilit:
- Enhancement pattern of the normal facial nerve at 3.0 T temporal MRIThe British Journal of Radiology, 2010
- Comparison of the Added Value of Contrast-Enhanced 3D Fluid-Attenuated Inversion Recovery and Magnetization-Prepared Rapid Acquisition of Gradient Echo Sequences in Relation to Conventional Postcontrast T1-Weighted Images for the Evaluation of Leptomeningeal Diseases at 3TAmerican Journal Of Neuroradiology, 2009
- Three-Dimensional Fluid Attenuated Inversion Recovery Imaging With Isotropic Resolution and Nonselective Adiabatic Inversion Provides Improved Three-Dimensional Visualization and Cerebrospinal Fluid Suppression Compared to Two-Dimensional Flair at 3 TeslaInvestigative Radiology, 2008
- Three‐Dimensional Fluid‐Attenuated Inversion Recovery Magnetic Resonance Imaging Findings and Prognosis in Sudden Sensorineural Hearing LossThe Laryngoscope, 2008
- Difference in Enhancement Between Spin Echo and 3-Dimensional Fast Spoiled Gradient Recalled Acquisition in Steady State Magnetic Resonance Imaging of Brain Metastasis at 3-T Magnetic Resonance ImagingJournal of Computer Assisted Tomography, 2008
- Isotropic MRI of the Knee with 3D Fast Spin-Echo Extended Echo-Train Acquisition (XETA): Initial ExperienceAmerican Journal of Roentgenology, 2007
- Correlation between MRI and Operative Findings in Bell's Palsy and Ramsay Hunt SyndromeYonsei Medical Journal, 2007
- Visualization of a high protein concentration in the cochlea of a patient with a large endolymphatic duct and sac, using three-dimensional fluid-attenuated inversion recovery magnetic resonance imagingThe Journal of Laryngology & Otology, 2006
- Facial Nerve Palsy: Evaluation by Contrast-enhanced MR ImagingClinical Radiology, 2001
- Facial Nerve Enhancement in Bell's Palsy Demonstrated by Different Gadolinium-Enhanced Magnetic Resonance Imaging TechniquesJAMA Otolaryngology–Head & Neck Surgery, 1993