In vivo real time monitoring of vasoconstriction and vasodilation by a combined diffuse reflectance spectroscopy and Doppler optical coherence tomography approach

Entities Mentioned

• University of Toronto
• National Research Council Canada
• I. Alex Vitkin
• Ontario Cancer Institute

1. Background and Objectives A combined diffuse reflectance (DR) spectroscopy and doppler optical coherence tomography (DOCT) approach may offer a powerful means for assessment of tissue function, and potentially provide a way for earlier cancer detection through non-invasive local blood supply measurements. The goal of the study was to compare a DR-derived blood-content-related index to a measure of local blood supply flow as furnished by DOCT during manipulations with blood circulation (vasoconstriction and vasodilation), investigate similarities and differences, complementarity of techniques, and then applying these results to the underlying biology. Study Design/Materials and Methods Simultaneous DR-DOCT measurements of local blood supply ... (Read Full Article)

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