Comparing accuracy of cochlear measurements on magnetic resonance imaging and computed tomography:A step towards radiation-free cochlear implantation
Anurita Swarup1
Vinusree Karakkandy1
Preetam Chappity1
Suprava Naik2
Sanjay Kumar Behera1
Pradipta Kumar Parida1
Mohnish Grover3
Gaurav Gupta4
Prajna Paramita Giri5
Saurav Sarkar1
Pradeep Pradhan1
Dillip Kumar Samal1
Aswathi Kallyadan Veetil1
Asutosh Adhikari1
Saurav Nayak6
1.Department of ENT and HNS,All India Institute of Medical Sciences(AIIMS),Bhubaneswar,Odisha,India2.Department of Radiodiagnosis,All India Institute of Medical Sciences(AIIMS),Bhubaneswar,Odisha,India3.Department of ENT,Sawai Man Singh Medical College,Jaipur,Rajasthan,India4.Department of ENT,Sardar Patel Medical College,Bikaner,Rajasthan,India5.Department of Community and Family Medicine,All India Institute of Medical Sciences(AIIMS),Bhubaneswar,Odisha,India6.Department of Biochemistry,All India Institute of Medical Sciences(AIIMS),Bhubaneswar,Odisha,India
摘要：Objective:Computed Tomography(CT)and Magnetic Resonance Imaging(MRI)are commonly employed in pre-operative evaluation for cochlear implant surgery.However,with a decrease in the age of im-plantation,even minor radiation exposure can cause detrimental effects on children over their lifetime.The 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 implantation.
Methods:A longitudinal observational study was conducted on 94 ears/47 children,employing CT and MRI scans.The CT and MRI scan measurements include,A value,B value,Cochlear duct length(CDL),two-turn cochlear length,alpha and beta angles to look for cochlear orientation.Cochlear nerve diameter was measured using MRI.The values were compared.
Results: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 difference.The alpha and beta angle measures were comparable,with no statistically significant difference.
Conclusion: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 population.There is no significant difference between the measurements obtained from CT and MRI scans.However,observed discrepancies in cochlear measurements across different populations require regionally or race-specific standardized values to ensure accurate diagnosis and precision in cochlear implant surgery.This aspect must be addressed to ensure positive outcomes for patients.
机标关键词：tomographycomputedimagingstepaccuracycochlearcomparingimplantation
论文发表日期：2023-12-30
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：6( 208-213 )
英文信息