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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 6 — Mar. 12, 2012
  • pp: 6267–6285

Source localization approach for functional DOT using MUSIC and FDR control

Jin Wook Jung, Ok Kyun Lee, and Jong Chul Ye  »View Author Affiliations


Optics Express, Vol. 20, Issue 6, pp. 6267-6285 (2012)
http://dx.doi.org/10.1364/OE.20.006267


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Abstract

In this paper, we formulate diffuse optical tomography (DOT) problems as a source localization problem and propose a MUltiple SIgnal Classification (MUSIC) algorithm for functional brain imaging application. By providing MUSIC spectra for major chromophores such as oxy-hemoglobin (HbO) and deoxy-hemoglobin (HbR), we are able to investigate the spatial distribution of brain activities. Moreover, the false discovery rate (FDR) algorithm can be applied to control the family-wise error in the MUSIC spectra. The minimum distance between the center of mass in DOT and the Montreal Neurological Institute (MNI) coordinates of target regions in experiments was between approximately 6 and 18mm, and the displacement of the center of mass in DOT and fMRI ranged between 12 and 28mm, which demonstrate the legitimacy of the DOT-based imaging. The proposed brain mapping method revealed its potential as an alternative algorithm to monitor the brain activation.

© 2012 OSA

OCIS Codes
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(170.2655) Medical optics and biotechnology : Functional monitoring and imaging

ToC Category:
Medical Optics and Biotechnology

History
Original Manuscript: November 23, 2011
Revised Manuscript: February 7, 2012
Manuscript Accepted: February 20, 2012
Published: March 5, 2012

Virtual Issues
Vol. 7, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Jin Wook Jung, Ok Kyun Lee, and Jong Chul Ye, "Source localization approach for functional DOT using MUSIC and FDR control," Opt. Express 20, 6267-6285 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-6-6267


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