Application of CT combined with MRI in the examination of sensorineural hearing loss

ObjectiveTo investigate the value of CT combined with MRI in the examination of sensorineural hearing loss.

MethodsSeventy-five patients with sensorineural hearing loss were examined with CT and MRI at the same time.MPR, MIP and VR were reconstructed with the corresponding post-processing workstation, and the Kappa consistency of the two methods was analyzed.The main structures of the normal inner ear were measured with MRI, and the inner ears of different sides and genders were analyzed.

ResultsAmong 75 patients, thirty cases were normal, and there was no significant difference in the measurement values of the inner ear of different sides and genders (P>0.05).Forty-five cases with abnormal ear structure were found, including 3 cases of malformation of semicircular canal, four cases of cochlear deformity, nine cases of enlarged vestibular aqueduct, four cases of malformation of internal auditory canal, two cases of abnormal external auditory canal, eighteen cases of cochlear nerve dysplasia, and five cases of abnormal vascular development of internal auditory canal.The consistency of the two methods in detecting semicircular canal malformation, cochlear malformation and large vestibular aqueduct syndrome was better, but the consistency of detecting internal auditory canal malformation was poor.

ConclusionsCT and MRI have their own advantages in the diagnosis of sensorineural hearing loss.They complement each other, can provide reliable imaging basis for clinical practice, and have important clinical application value.