Simultaneous imaging of cortical blood flow and haemoglobin concentration with LASCA and RGB reflectometry.
Document type:
Journal Article
Author(s):
Steimers, André; Gramer, M; Takagaki, M; Graf, R; Lindauer, U; Kohl-Bareis, Matthias
Abstract:
We demonstrate a system for the simultaneous imaging of cortical blood flow and haemoglobin oxygenation by laser speckle contrast analysis (LASCA) and RGB reflectometry. The sensitivity of the system was tested by observing changes of haemoglobin oxygenation and blood flow in rats in response to ischaemic stroke, hypercapnia, hyperoxia, hypoxia, cortical spreading depression and cortical activation following forepaw stimulation.