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- W2900807772 abstract "Infrared thermal imaging of brain temperature changes is useful for evaluating cortical activity and disease states, such as stroke. However, the changes depend on a balance between changes in heat generation from metabolism and in heat convection related to blood flow. To discriminate between these effects and gain a clearer understanding of neurovascular metabolic coupling, brain temperature imaging must be improved to measure temperature and blood flow simultaneously. We develop an imaging technique that shows a two-dimensional (2-D) distribution of absolute brain temperature and relative cerebral blood flow changes in anesthetized rats by combining infrared thermal imaging with laser speckle imaging. The changes in brain metabolism and cerebral blood flow are achieved using two different anesthetics (isoflurane and α-chloralose) to evaluate our system. Isoflurane increased cerebral blood flow but decreased metabolism, whereas α-chloralose decreased both parameters. This technique enables simultaneous visualization of brain surface changes in temperature and cerebral blood flow in the same regions. This imaging system will permit further study of neurovascular metabolic coupling in normal and diseased brains." @default.
- W2900807772 created "2018-11-29" @default.
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- W2900807772 date "2018-11-22" @default.
- W2900807772 modified "2023-09-24" @default.
- W2900807772 title "Simultaneous infrared thermal imaging and laser speckle imaging of brain temperature and cerebral blood flow in rats" @default.
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- W2900807772 doi "https://doi.org/10.1117/1.jbo.24.3.031014" @default.
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