Freehand OCT with real-time lateral motion tracking

Xuan Liu, Yong Huang, Peter Gehlbach, Jin U. Kang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Freehand optical coherence tomography (OCT) systems without mechanical scanners can offer greater freedom to access and image sites of interest. However, the scanning velocity during freehand scan is irregular; therefore pseudo B-scan images obtained by stacking sequentially acquired A-scans have a non-uniform spatial sampling rate in the lateral dimension. In this study, we developed a speckle decorrelation method to estimate lateral displacement between sequentially acquired A-scans and used the information extracted from speckle analysis to correct the time-varying lateral scanning speed. We applied this method to a handheld OCT probe and performed calibration experiments to validate our model. Furthermore we demonstrated distortion-free, freehand OCT imaging of various samples including human tissue, in vivo.

Original languageEnglish (US)
Title of host publicationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume8571
DOIs
StatePublished - 2013
EventOptical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVII - San Francisco, CA, United States
Duration: Feb 4 2013Feb 6 2013

Other

OtherOptical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVII
CountryUnited States
CitySan Francisco, CA
Period2/4/132/6/13

Fingerprint

Optical tomography
Optical Coherence Tomography
tomography
Speckle
Scanning
scanning
Calibration
scanners
sampling
Tissue
Sampling
Imaging techniques
probes
estimates
Experiments

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

Cite this

Liu, X., Huang, Y., Gehlbach, P., & Kang, J. U. (2013). Freehand OCT with real-time lateral motion tracking. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE (Vol. 8571). [85711P] https://doi.org/10.1117/12.2006973

Freehand OCT with real-time lateral motion tracking. / Liu, Xuan; Huang, Yong; Gehlbach, Peter; Kang, Jin U.

Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 8571 2013. 85711P.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Liu, X, Huang, Y, Gehlbach, P & Kang, JU 2013, Freehand OCT with real-time lateral motion tracking. in Progress in Biomedical Optics and Imaging - Proceedings of SPIE. vol. 8571, 85711P, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVII, San Francisco, CA, United States, 2/4/13. https://doi.org/10.1117/12.2006973
Liu X, Huang Y, Gehlbach P, Kang JU. Freehand OCT with real-time lateral motion tracking. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 8571. 2013. 85711P https://doi.org/10.1117/12.2006973
Liu, Xuan ; Huang, Yong ; Gehlbach, Peter ; Kang, Jin U. / Freehand OCT with real-time lateral motion tracking. Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 8571 2013.
@inproceedings{f2fde93bebe14167abe8be12b8458271,
title = "Freehand OCT with real-time lateral motion tracking",
abstract = "Freehand optical coherence tomography (OCT) systems without mechanical scanners can offer greater freedom to access and image sites of interest. However, the scanning velocity during freehand scan is irregular; therefore pseudo B-scan images obtained by stacking sequentially acquired A-scans have a non-uniform spatial sampling rate in the lateral dimension. In this study, we developed a speckle decorrelation method to estimate lateral displacement between sequentially acquired A-scans and used the information extracted from speckle analysis to correct the time-varying lateral scanning speed. We applied this method to a handheld OCT probe and performed calibration experiments to validate our model. Furthermore we demonstrated distortion-free, freehand OCT imaging of various samples including human tissue, in vivo.",
author = "Xuan Liu and Yong Huang and Peter Gehlbach and Kang, {Jin U.}",
year = "2013",
doi = "10.1117/12.2006973",
language = "English (US)",
isbn = "9780819493408",
volume = "8571",
booktitle = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",

}

TY - GEN

T1 - Freehand OCT with real-time lateral motion tracking

AU - Liu, Xuan

AU - Huang, Yong

AU - Gehlbach, Peter

AU - Kang, Jin U.

PY - 2013

Y1 - 2013

N2 - Freehand optical coherence tomography (OCT) systems without mechanical scanners can offer greater freedom to access and image sites of interest. However, the scanning velocity during freehand scan is irregular; therefore pseudo B-scan images obtained by stacking sequentially acquired A-scans have a non-uniform spatial sampling rate in the lateral dimension. In this study, we developed a speckle decorrelation method to estimate lateral displacement between sequentially acquired A-scans and used the information extracted from speckle analysis to correct the time-varying lateral scanning speed. We applied this method to a handheld OCT probe and performed calibration experiments to validate our model. Furthermore we demonstrated distortion-free, freehand OCT imaging of various samples including human tissue, in vivo.

AB - Freehand optical coherence tomography (OCT) systems without mechanical scanners can offer greater freedom to access and image sites of interest. However, the scanning velocity during freehand scan is irregular; therefore pseudo B-scan images obtained by stacking sequentially acquired A-scans have a non-uniform spatial sampling rate in the lateral dimension. In this study, we developed a speckle decorrelation method to estimate lateral displacement between sequentially acquired A-scans and used the information extracted from speckle analysis to correct the time-varying lateral scanning speed. We applied this method to a handheld OCT probe and performed calibration experiments to validate our model. Furthermore we demonstrated distortion-free, freehand OCT imaging of various samples including human tissue, in vivo.

UR - http://www.scopus.com/inward/record.url?scp=84877855880&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84877855880&partnerID=8YFLogxK

U2 - 10.1117/12.2006973

DO - 10.1117/12.2006973

M3 - Conference contribution

AN - SCOPUS:84877855880

SN - 9780819493408

VL - 8571

BT - Progress in Biomedical Optics and Imaging - Proceedings of SPIE

ER -