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    Using optical coherence tomography to improve diagnostic and therapeutic bronchoscopy

    Access Status
    Fulltext not available
    Authors
    Williamson, J.
    McLaughlin, R.
    Phillips, M.
    Armstrong, J.
    Becker, S.
    Walsh, J.
    Sampson, D.
    Hillman, D.
    Eastwood, Peter
    Date
    2009
    Type
    Journal Article
    
    Metadata
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    Citation
    Williamson, J. and McLaughlin, R. and Phillips, M. and Armstrong, J. and Becker, S. and Walsh, J. and Sampson, D. et al. 2009. Using optical coherence tomography to improve diagnostic and therapeutic bronchoscopy. Chest. 136 (1): pp. 272-276.
    Source Title
    Chest
    DOI
    10.1378/chest.08-2800
    ISSN
    0012-3692
    School
    School of Physiotherapy and Exercise Science
    URI
    http://hdl.handle.net/20.500.11937/24171
    Collection
    • Curtin Research Publications
    Abstract

    Flexible bronchoscopy is a common procedure that is used in both diagnostic and therapeutic settings but does not readily permit measurement of central airway dimensions. Anatomic optical coherence tomography (aOCT), a modification of conventional optical coherence tomography (OCT), is a novel light-based imaging tool with the capacity to measure the diameter and lumen area of the central airways accurately during bronchoscopy. This study describes the first clinical use of aOCT imaging in the lower airways in three individuals with common endobronchial pathologies. During bronchoscopy, a specialized fiberoptic probe was passed through the biopsy channel of a standard flexible bronchoscope to the site of airway pathology. Airway dimensions were measured from the generated cross-sectional images in three subjects, one with subglottic tracheal stenosis (subject 1), one with malignant left main bronchus (LMB) obstruction (subject 2), and another with severe tracheomalacia (subject 3). Measured dimensions included internal airway diameter, cross-sectional area, and, in subject 1, stenosis length. Tracheal stenosis dimensions, measured using aOCT imaging, correlated with chest CT scan findings and guided the choice of airway stent (subject 1). The airway beyond a malignant obstruction of the LMB, and beyond bronchoscopic view, could be imaged using aOCT, and the distal extent of obstructing tumor identified (subject 2). The severity of newly diagnosed tracheomalacia was able to be quantified using aOCT imaging (subject 3). aOCT imaging during bronchoscopy allows accurate real-time airway measurements and may assist bronchoscopic assessment. Copyright © 2009 American College of Chest Physicians.

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