Preoperative high resolution CT and MR imaging in cochlear implantation

Asma Abdullah, M. R. Mahmud, A. Maimunah, M. A. Zulfiqar, L. Saim, Rafidah Mazlan

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Introduction. Accurate preoperative imaging of the temporal bone in patients receiving cochlear implants is important. High resolution computed tomography (HRCT) and magnetic resonance (MR) imaging are the 2 preoperative imaging modalities that provide critical information on abnormalities of the otic capsule, pneumatisation of the mastoid, middle ear abnormalities, cochlear ducts patency and presence of cochlear nerve. Materials and Methods: The HRCT and MR imaging in 46 cochlear implant patients in our department were reviewed. Results: Majority of our patients [34 patients (73.9%)] showed normal HRCT of the temporal bone; 5 (10.9%) patients had labyrinthitis ossificans, 2 (4.3%) had Mondini's abnormality and 2 (4.3%) had middle ear effusion. One patient each had high jugular bulb, hypoplasia of the internal auditory canal and single cochlear cavity, respectively. Conclusion: The above findings contribute significantly to our surgical decisions regarding candidacy for surgery, side selection and surgical technique in cochlear implantation.

Original languageEnglish
Pages (from-to)442-445
Number of pages4
JournalAnnals of the Academy of Medicine Singapore
Volume32
Issue number4
Publication statusPublished - Jul 2003

Fingerprint

Cochlear Implantation
Magnetic Resonance Imaging
Cochlear Implants
Temporal Bone
Tomography
Labyrinthitis
Cochlear Duct
Cochlear Nerve
Otitis Media with Effusion
Mastoid
Cochlea
Middle Ear
Capsules
Ear
Neck

Keywords

  • Labyrinthitis ossificans
  • Michel aplasia
  • Mondini deformity

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Preoperative high resolution CT and MR imaging in cochlear implantation. / Abdullah, Asma; Mahmud, M. R.; Maimunah, A.; Zulfiqar, M. A.; Saim, L.; Mazlan, Rafidah.

In: Annals of the Academy of Medicine Singapore, Vol. 32, No. 4, 07.2003, p. 442-445.

Research output: Contribution to journalArticle

Abdullah, Asma ; Mahmud, M. R. ; Maimunah, A. ; Zulfiqar, M. A. ; Saim, L. ; Mazlan, Rafidah. / Preoperative high resolution CT and MR imaging in cochlear implantation. In: Annals of the Academy of Medicine Singapore. 2003 ; Vol. 32, No. 4. pp. 442-445.
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