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Type: Journal article
Title: Enabling freehand lateral scanning of optical coherence tomography needle probes with a magnetic tracking system
Author: Yeo, B.
McLaughlin, R.
Kirk, R.
Sampson, D.
Citation: Biomedical Optics Express, 2012; 3(7):1565-1578
Publisher: Optical Society of America
Issue Date: 2012
ISSN: 2156-7085
Statement of
Boon Y. Yeo, Robert A. McLaughlin, Rodney W. Kirk and David D. Sampson
Abstract: We present a high-resolution three-dimensional position tracking method that allows an optical coherence tomography (OCT) needle probe to be scanned laterally by hand, providing the high degree of flexibility and freedom required in clinical usage. The method is based on a magnetic tracking system, which is augmented by cross-correlation-based resampling and a two-stage moving window average algorithm to improve upon the tracker's limited intrinsic spatial resolution, achieving 18 µm RMS position accuracy. A proof-of-principle system was developed, with successful image reconstruction demonstrated on phantoms and on ex vivo human breast tissue validated against histology. This freehand scanning method could contribute toward clinical implementation of OCT needle imaging.
Keywords: (150.6910) Three-dimensional sensing; (170.4500) Optical coherence tomography; (330.4150) Motion detection
Rights: © 2012 Optical Society of America
RMID: 0030050366
DOI: 10.1364/BOE.3.001565
Appears in Collections:Medical Sciences publications

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