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Intra-operative use of Cone-beam computer/tomographyin a cadaveric ossified cochlea model

Intra-operative use of Cone-beam computer/tomographyin a cadaveric ossified cochlea model
Intra-operative use of Cone-beam computer/tomographyin a cadaveric ossified cochlea model
Objectives: to describe a cadaveric temporal bone model of labyrinthitis ossificans and investigate the utility of intraoperative cone-beam computed tomography (CBCT) in the facilitating cochlear implantation.

Design: cadaveric temporal bone study.

Methods: five cadaveric heads had cement introduced into the 10 cochleas. CBCT and a conventional CT scan were compared to assess the extent of cochlear obliteration. The cement was drilled-out (under CBCT guidance, if required) and cochlear implant electrode arrays (from 3 different manufacturers) inserted.

Results: CBCT images demonstrated temporal bone anatomy and the extent of cochlear obliteration as clearly as conventional CT in all cases. Intraoperative CBCT guided drilling and facilitated electrode placement in two of five heads (3 of 10 ears). Streak-artifact from the electrodes of two devices partially obscured image clarity.

Conclusions: the obliterated cochlear model reproduced a disease-ossified cochlear both radiographically and surgically. CBCT is useful for intraoperative imaging to facilitate electrode array placement in the obliterated or congenitally abnormal cochlea
0194-5998
697-702
King, Emma
d85e0e8f-7295-4912-9052-646a790d99db
Trimble, Keith
498319de-6f37-4d0a-ac50-48ae9462b15e
Chan, Harley
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Ramsden, James
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Nithiananthan, Sajendra
13452561-4932-4857-9c37-df8de3b8f69a
James, Adrian
2398f0b7-57e6-48e3-ab5c-2981d5e79440
Bachar, Gideon
1bea813f-4e38-45c4-85a0-25561f47d4b3
Daly, Mike
fbbce90f-1641-4ec9-ae65-b6f3cc9bc6cc
Irish, Jonathan
e5e1c737-a33f-47fb-a536-3a1352e58308
Siewerdsen, Jeff
9ff35e29-2f97-44fc-bdda-dd8f125eb236
King, Emma
d85e0e8f-7295-4912-9052-646a790d99db
Trimble, Keith
498319de-6f37-4d0a-ac50-48ae9462b15e
Chan, Harley
85444e7c-c70b-48a2-b289-f733cf79c162
Ramsden, James
88a31a9a-24d8-4e11-8314-d9945d313069
Nithiananthan, Sajendra
13452561-4932-4857-9c37-df8de3b8f69a
James, Adrian
2398f0b7-57e6-48e3-ab5c-2981d5e79440
Bachar, Gideon
1bea813f-4e38-45c4-85a0-25561f47d4b3
Daly, Mike
fbbce90f-1641-4ec9-ae65-b6f3cc9bc6cc
Irish, Jonathan
e5e1c737-a33f-47fb-a536-3a1352e58308
Siewerdsen, Jeff
9ff35e29-2f97-44fc-bdda-dd8f125eb236

King, Emma, Trimble, Keith, Chan, Harley, Ramsden, James, Nithiananthan, Sajendra, James, Adrian, Bachar, Gideon, Daly, Mike, Irish, Jonathan and Siewerdsen, Jeff (2009) Intra-operative use of Cone-beam computer/tomographyin a cadaveric ossified cochlea model. Otolaryngology Head and Neck Surgery, 140 (5), 697-702. (doi:10.1016/j.otohns.2008.12.046). (PMID:19393414)

Record type: Article

Abstract

Objectives: to describe a cadaveric temporal bone model of labyrinthitis ossificans and investigate the utility of intraoperative cone-beam computed tomography (CBCT) in the facilitating cochlear implantation.

Design: cadaveric temporal bone study.

Methods: five cadaveric heads had cement introduced into the 10 cochleas. CBCT and a conventional CT scan were compared to assess the extent of cochlear obliteration. The cement was drilled-out (under CBCT guidance, if required) and cochlear implant electrode arrays (from 3 different manufacturers) inserted.

Results: CBCT images demonstrated temporal bone anatomy and the extent of cochlear obliteration as clearly as conventional CT in all cases. Intraoperative CBCT guided drilling and facilitated electrode placement in two of five heads (3 of 10 ears). Streak-artifact from the electrodes of two devices partially obscured image clarity.

Conclusions: the obliterated cochlear model reproduced a disease-ossified cochlear both radiographically and surgically. CBCT is useful for intraoperative imaging to facilitate electrode array placement in the obliterated or congenitally abnormal cochlea

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Published date: May 2009

Identifiers

Local EPrints ID: 180061
URI: http://eprints.soton.ac.uk/id/eprint/180061
ISSN: 0194-5998
PURE UUID: 0a968995-21a7-4029-8b65-042082c27545

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Date deposited: 07 Apr 2011 07:27
Last modified: 14 Mar 2024 02:51

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Contributors

Author: Emma King
Author: Keith Trimble
Author: Harley Chan
Author: James Ramsden
Author: Sajendra Nithiananthan
Author: Adrian James
Author: Gideon Bachar
Author: Mike Daly
Author: Jonathan Irish
Author: Jeff Siewerdsen

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