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- Title
Path-length-resolved optical Doppler perfusion monitoring.
- Authors
Babu Varghese; Vinayakrishnan Rajan; Ton G Van Leeuwen; Wiendelt Steenbergen
- Abstract
We report the first path-length-resolved perfusion measurements on human skin measured with a phase-modulated low-coherence Mach-Zehnder interferometer with spatially separated fibers for illumination and detection. Optical path lengths of Doppler shifted and unshifted light and path-length-dependent Doppler broadening of multiply scattered light from skin are measured from the Doppler broadened interference peaks appearing in the power spectrum. Perfusion and its variations during occlusion are measured in real time for a given optical path length, and the results are compared with the perfusion signal obtained with a conventional laser Doppler perfusion monitor.
- Subjects
OPTICAL measurements; SKIN; LASERS; INTERFEROMETERS
- Publication
Journal of Biomedical Optics, 2007, Vol 12, Issue 6, p60508
- ISSN
1083-3668
- Publication type
Article
- DOI
10.1117/1.2823141