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Appl Opt. 2013 Mar 1;52(7):C64-71. doi: 10.1364/AO.52.000C64.

Rapid multiexposure in vivo brain imaging system using vertical cavity surface emitting lasers as a light source.

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The Edward S. Rogers Sr. Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada.


We demonstrate an imaging technique implementing vertical cavity lasers with extremely low transient times for a greatly simplified realization of a multiexposure laser speckle contrast imaging system. Data from multiexposure laser speckle imaging was observed to more closely agree with absolute velocity measurements using time of flight technique, when compared to long-exposure laser speckle imaging. Furthermore, additional depth information of the vasculature morphology was inferred by accounting for the change in the static scattering from tissue above vessels with respect to the total scattering from blood flow and tissue.

[Indexed for MEDLINE]

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