A high-resolution computed tomography based scoring system to predict ease of electrode insertion in cochlear implantation.
- Resource Type
- Article
- Authors
- Das, A; Janweja, M; Dubey, A; Mitra, S; Sengupta, A
- Source
- Journal of Laryngology & Otology. Jun2022, Vol. 136 Issue 6, p479-485. 7p.
- Subject
- *ELECTRODES
*COCHLEAR implants
*MASTOIDECTOMY
*ARTIFICIAL implants
*MEDICAL equipment calibration
*COMPUTED tomography
*RECEIVER operating characteristic curves
*SENSITIVITY & specificity (Statistics)
*TEMPORAL bone
- Language
- ISSN
- 0022-2151
Objective: This study aimed to formulate a scoring system based on high-resolution computed tomography scans to predict ease of electrode insertion during cochlear implantation via posterior tympanotomy in paediatric patients. Method: A scoring system Cochlear Implantation Radiological Assessment Score (CIRAS) was formulated based on six parameters. This score was correlated with intra-operative findings, and receiver operating characteristic analysis was performed to determine the optimal cut-off score to predict difficulty of surgery and to establish the inherent validity of the scoring system by area under curve. Results: Receiver operating characteristic analysis showed that optimal cut-off score was 8 (93.1 per cent specificity and 56.52 per cent sensitivity), and area under the curve was 0.828. Patients with CIRAS of more than 8 had significantly higher time for surgery (p < 0.05). Conclusion: CIRAS is an easy to administer tool by utilising classical axial and coronal sections, without any numerical measures. Pre-operative assessment by this score gives a good idea of intra-operative challenges. [ABSTRACT FROM AUTHOR]