Рентгенология & Радиология, 2018, LVII 120-124

CT and MRI in diagnosing Superior Semicircular Canal Dehiscence – SSCD

  1. Spirdonov

Abstract.

The purpose of the study is to share our experience and results of the MRI and CT capabilities of SSDD diagnostics – a relatively recent pathology of the inner ear. Seventeen patients with suspicion of SSDD performed MRI of 1.5 T and CT at a high resolution of 0.625 mm over the last two years – 13 men and 4 women between 31 and 55 years of age. In the analysis of the collected materials, 90% and 88.2% sensitivity and specificity data were obtained, and for MRT these percentages were 96% and 94.1%, respectively. The results state that MRI sensitivity and specificity is superior to CT in SSCD diagnosis. The resulting in-ear image images obtained with the T2 FRFSE-XL / 90 sequence are reasonably considered to be equivalent in terms of the T2 FIESTA in patients with SSCD. In the assessed group, no patients with Chronic inflammatory changes in the middle ear and history of previous illnesses, but apparently this does not reduce the risk of SSCD development.

Key words: SSCD. CT. MRI. VESTIBULAR EVOKED MYOGENIC POTENTIALS (VEMP). CHRONIC OTITIS MEDIA