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Comparing accuracy of cochlear measurements on magnetic resonance imaging and computed tomography:A step towards radiation-free cochlear implantation

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中华耳科学杂志:英文版 2023年第4期18卷 208-213页

作者： Anurita Swarup Vinusree Karakkandy Preetam Chappity Suprava Naik Sanjay Kumar Behera Pradipta Kumar Parida Mohnish Grover Gaurav Gupta Prajna Paramita Giri Saurav Sarkar Pradeep Pradhan Dillip Kumar Samal Aswathi Kallyadan Veetil Asutosh Adhikari Saurav Nayak Department of ENT and HNS All India Institute of Medical Sciences(AIIMS)BhubaneswarOdishaIndia Department of Radiodiagnosis All India Institute of Medical Sciences(AIIMS)BhubaneswarOdishaIndia Department of Community and Family Medicine All India Institute of Medical Sciences(AIIMS)BhubaneswarOdishaIndia Department of Biochemistry All India Institute of Medical Sciences(AIIMS)BhubaneswarOdishaIndia Department of ENT Sawai Man Singh Medical CollegeJaipurRajasthanIndia Department of ENT Sardar Patel Medical CollegeBikanerRajasthanIndia

Objective:Computed Tomography(CT)and Magnetic Resonance Imaging(MRI)are commonly employed in pre-operative evaluation for cochlear implant ***,with a decrease in the age of implantation,even minor radiation exposure can cause detrimental effects on children over their *** current study compares different cochlear measurements from CT and MRI scans and evaluates the feasibility of using only an MRI scan for radiological evaluation before cochlear ***:A longitudinal observational study was conducted on 94 ears/47 children,employing CT and MRI *** CT and MRI scan measurements include,A value,B value,cochlear duct length(CDL),twoturn cochlear length,alpha and beta angles to look for cochlear *** nerve diameter was measured using *** values were ***:The mean difference between measurements from CT and MRI scans for A value,B value,CDL,and two-turn cochlear length values was 0.567±0.413 mm,0.406±0.368 mm,2.365±1.675 mm,and 2.063±1.477 mm respectively without any significant *** alpha and beta angle measures were comparable,with no statistically significant ***:The study suggests that MRI scans can be the only radiological investigation needed with no radiation risk and reduces the cost of cochlear implant program in the paediatric *** is no significant difference between the measurements obtained from CT and MRI ***,observed discrepancies in cochlear measurements across different populations require regionally or race-specific standardized values to ensure accurate diagnosis and precision in cochlear implant *** aspect must be addressed to ensure positive outcomes for patients.

关键词： cochlear implant Hearing loss cochlea anatomy Radiology

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