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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 2, Iss. 5 — May. 17, 2007

Theoretical investigation of measuring cerebral blood flow in the adult human head using bolus Indocyanine Green injection and near-infrared spectroscopy

Terence S. Leung, Ilias Tachtsidis, Martin Tisdall, Martin Smith, David T. Delpy, and Clare E. Elwell  »View Author Affiliations


Applied Optics, Vol. 46, Issue 10, pp. 1604-1614 (2007)
http://dx.doi.org/10.1364/AO.46.001604


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Abstract

To investigate the accuracy of measuring cerebral blood flow (CBF) using a bolus injection of Indocyanine Green (ICG) detected by near-infrared spectroscopy in adult human heads, simulations were performed using a two-layered model representing the extracerebral and intracerebral layers. Modeled optical data were converted into tissue ICG concentration using either the one-detector modified Beer–Lambert law (MBLL) method, or the two-detector partial path-length (PPL) method. The CBFs were estimated using deconvolution and blood flow index techniques. Using the MBLL method, the CBFs were significantly underestimated but the PPL method improved their accuracy and robustness, especially when used as relative measures. The dispersion of the arterial input function also affected the CBF estimates.

© 2007 Optical Society of America

OCIS Codes
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(170.3890) Medical optics and biotechnology : Medical optics instrumentation
(170.6510) Medical optics and biotechnology : Spectroscopy, tissue diagnostics

ToC Category:
Diffuse optical imaging

History
Original Manuscript: June 5, 2006
Revised Manuscript: October 6, 2006
Manuscript Accepted: October 10, 2006
Published: March 13, 2007

Virtual Issues
Vol. 2, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Terence S. Leung, Ilias Tachtsidis, Martin Tisdall, Martin Smith, David T. Delpy, and Clare E. Elwell, "Theoretical investigation of measuring cerebral blood flow in the adult human head using bolus Indocyanine Green injection and near-infrared spectroscopy," Appl. Opt. 46, 1604-1614 (2007)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-46-10-1604

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