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Enabling freehand lateral scanning of optical coherence tomography needle probes with a magnetic tracking system

Yeo, B.Y., McLaughlin, R.A., Kirk, R.W. and Sampson, D.D. (2012) Enabling freehand lateral scanning of optical coherence tomography needle probes with a magnetic tracking system Biomedical Optics Express, 3 (7). pp. 1565-1578.

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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 μ m 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.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences
Faculty of Health and Medical Sciences
Authors :
NameEmailORCID
Yeo, B.Y.
McLaughlin, R.A.
Kirk, R.W.
Sampson, D.D.d.sampson@surrey.ac.uk
Date : 2012
DOI : 10.1364/BOE.3.001565
Uncontrolled Keywords : Image reconstruction, Needles, Tissue, Tracking (position), Clinical usage, Degree of flexibility, Ex-vivo, Freehand scanning, High resolution, Human breast tissue, Lateral scanning, Magnetic tracking systems, Moving window, Needle probes, Position accuracy, Proof of principles, Resampling, Spatial resolution, Optical tomography
Depositing User : Maria Rodriguez-Marquez
Date Deposited : 05 Jun 2018 15:21
Last Modified : 19 Sep 2018 11:32
URI: http://epubs.surrey.ac.uk/id/eprint/846836

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