Application of contrast-enhanced MRI and curved planar reformation in facial neuritis / 中国介入影像与治疗学

ABSTRACT

Objective To explore the application value of contrast-enhanced MRI and curved planar reformation (CPR) in diagnosis of facial neuritis.Methods Contrast-enhanced MRI scans were performed on 30 patients with facial neuritis.The involvement of intracranial facial nerve was observed,and the signal intensity of facial nerve and adjacent temporal lobe was measured with GE AW 4.5 workstation.While the signal intensity ratio (SIR) between facial nerve and adjacent temporal lobe was calculated.CPR of facial nerve was done with Philips EBW workstation,in order to observe the whole course and involvement of facial nerve.Results Among the 30 patients,SIR of affected geniculate ganglion,tympanic segment,labyrinthine segment,internal auditory meatus segment and mastoid segment was 1.59±0.28,1.16±0.16,1.38±0.20,1.30 ±0.19 and 0.96±0.14,respectively.While SIR of the relevant segment in contralateral side was 1.08±±0.19,0.74±0.13,0.81±0.13,0.83±0.08 and 0.69±0.12,respectively.There were significant differences of SIR between the affected and the contralateral segments (all P＜0.001).CPR could display the involved location and facilitate visualizing the whole course of facial nerve clearly.Conclusion Contrast-enhanced MRI and CPR are helpful to facilitate visualizing the whole course of facial nerve and clearly reveal the involvement.