Intraoperative use of cone-beam computed tomography in a cadaveric ossified cochlea model

Emma Barker; Keith Trimble; Harley Chan; James Ramsden; Sajendra Nithiananthan; Adrian James; Gideon Bachar; Mike Daly; Jonathan Irish; Jeff Siewerdsen

doi:10.1016/j.otohns.2008.12.046

Intraoperative use of cone-beam computed tomography in a cadaveric ossified cochlea model

Emma Barker, Keith Trimble, Harley Chan, James Ramsden, Sajendra Nithiananthan, Adrian James, Gideon Bachar, Mike Daly, Jonathan Irish, Jeff Siewerdsen

Research output: Contribution to journal › Article › peer-review

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.

Original language	English (US)
Pages (from-to)	697-702
Number of pages	6
Journal	Otolaryngology - Head and Neck Surgery
Volume	140
Issue number	5
DOIs	https://doi.org/10.1016/j.otohns.2008.12.046
State	Published - May 2009
Externally published	Yes

ASJC Scopus subject areas

Surgery
Otorhinolaryngology

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10.1016/j.otohns.2008.12.046

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Intraoperative use of cone-beam computed tomography in a cadaveric ossified cochlea model. / Barker, Emma; Trimble, Keith; Chan, Harley; Ramsden, James; Nithiananthan, Sajendra; James, Adrian; Bachar, Gideon; Daly, Mike; Irish, Jonathan; Siewerdsen, Jeff.

In: Otolaryngology - Head and Neck Surgery, Vol. 140, No. 5, 05.2009, p. 697-702.

Research output: Contribution to journal › Article › peer-review

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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.",

author = "Emma Barker and Keith Trimble and Harley Chan and James Ramsden and Sajendra Nithiananthan and Adrian James and Gideon Bachar and Mike Daly and Jonathan Irish and Jeff Siewerdsen",

note = "Funding Information: This work was supported in part by a grant from the National Institutes of Health (NIH R01-CA-127944-02) and by the Princess Margaret Hospital Foundation. ",

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AU - Barker, Emma

AU - Trimble, Keith

AU - Chan, Harley

AU - Ramsden, James

AU - Nithiananthan, Sajendra

AU - James, Adrian

AU - Bachar, Gideon

AU - Daly, Mike

AU - Irish, Jonathan

AU - Siewerdsen, Jeff

N1 - Funding Information: This work was supported in part by a grant from the National Institutes of Health (NIH R01-CA-127944-02) and by the Princess Margaret Hospital Foundation.

PY - 2009/5

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N2 - 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.

AB - 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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Intraoperative use of cone-beam computed tomography in a cadaveric ossified cochlea model

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