The Efficacy of Magnetic Resonance Imaging for the Diagnosis of Superior Semicircular Canal Dehiscence

Abstract

OBJECTIVE:This study aimed to evaluate the efficacy of magnetic resonance imaging (MRI) for diagnosing superior semicircular canal dehiscence (SSCD). MATERIALS and METHODS:The radiological records of patients who were admitted to our clinic with complaints of otologic and neuro-otologic symptoms between October 2014 and December 2015 were retrospectively reviewed. Among these patients, those who underwent both computed tomography and MRI and were reported to have SSCD in the temporal bone on at least one side were included in the study group. MRI records of patients with a confirmed diagnosis were then assessed for the presence of SSCD. RESULTS:The left and right semicircular canals of 52 patients were evaluated in this study. The sensitivity and specificity of MRI in the diagnosis of SSCD was 89.06% and 90%, respectively. The positive and negative predictive values were 93.44% and 83.72%, respectively. CONCLUSION:The use of multiplanar reformats and angulation techniques during MRI assessment of patients with neuro-otologic symptoms can improve the diagnostic process for patients with SSCD. This may allow early diagnosis of the disease by using just one imaging method, which would also reduce the costs per patient during the diagnosis period.

Influence of Semicircular Canal Dehiscence on Cochlear Implant Outcome

“…blinded to patient and outcome information. The SCD was evaluated with images in the parallel, perpendicular, and oblique sagittal planes to the semicircular canals [Beyazal Çeliker et al, 2018] (Fig. 1).…”

“…For this retrospective analysis, we had to rely on MRI findings for the diagnosis of SCD, as CT scans and vestibular evoked myogenic potential (VEMP) tests were not routinely performed before cochlear implantation at our institution. However, multiple studies comparing CT with MRI for the diagnosis of SCD showed a high reliability of MRI [Browaeys et al, 2013;Inal et al, 2016;Beyazal Çeliker et al, 2018]. Furthermore, MRI findings were matched with CT findings if available.…”

“…Computed tomography represents the gold standard for diagnosing SCD. However, multiple studies have demonstrated the efficacy of using magnetic resonance imaging (MRI) for its diagnosis [Browaeys et al, 2013;Inal et al, 2016;Beyazal Çeliker et al, 2018]. The aim of this study was to conduct a retrospective analysis of the prevalence of SCD among CI recipients, word perception outcome over time, and rate of preservation of residual hearing.…”

Az otoscleroticus eredetű hallócsontláncolati fixatiók klinikuma

“…A diagnózis pontos felállításában a kórtörténet mellett kulcsszerepe van a részletes audiovestibularis kivizsgálásnak (impedanciaaudiometria; vestibularisan kiváltott miogén potenciál [VEMP] vizsgálata). A képalkotók közül a HRCT alkalmazása a legelterjedtebb, de MRI-vel a dehiscentia pontosabban meghatározható [26,27].…”

Superior Semicircular Canal Dehiscence

“…19 Beyazal Çeliker ve ark.nın yaptığı çalışmada, nörootolojik semptomları olan hastalarda MRG'nin SSKD tanısında yüksek hassasiyet ve özgüllüğe sahip olduğu gösterilmiştir. 22 Vestibüler uyarılmış miyojenik potansiyeller (VEMP), SSKD tanısında ve takibinde oldukça yararlıdır. SSKD olan hastalarda düşük stimülus şiddetlerinde oldukça yüksek VEMP yanıtları görülür.…”