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Respiratory gating of endoscopic OCT images of the upper airway

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Authors
McLaughlin, R.
Armstrong, J.
Becker, S.
Walsh, J.
Kirkness, J.
Jain, A.
Leigh, M.
Williamson, J.
Hillman, D.
Eastwood, Peter
Sampson, D.
Date
2008
Type
Conference Paper

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Citation
McLaughlin, R. and Armstrong, J. and Becker, S. and Walsh, J. and Kirkness, J. and Jain, A. and Leigh, M. et al. 2008. Respiratory gating of endoscopic OCT images of the upper airway.
Source Title
Proceedings of SPIE - The International Society for Optical Engineering
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School
School of Physiotherapy and Exercise Science
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Abstract

Anatomical optical coherence tomography (aOCT) is an endoscopic imaging modality that can be used to quantify size and shape of the upper airway. We report the application of respiratory gating to aOCT images. Our results show that respiratory gating can reduce motion artefact in upper airway images. Using an error metric based on distance to the dominant reflection in each A-scan, we found notable improvements when the breath cycle was partitioned into approximately four gates, but only minor improvements as the number of gates was further increased.