Peter Rejmstad

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The aim of this study was to adapt and evaluate laser Doppler perfusion monitoring (LDPM) together with custom-designed brain probes and software for continuous recording of cerebral microcirculation in patients undergoing neurosurgery. The LDPM system was used to record perfusion and backscattered light (TLI). These parameters were displayed together with(More)
BACKGROUND Laser Doppler flowmetry (LDF) can be used to measure cerebral microcirculation in relation to stereotactic deep brain stimulation (DBS) implantations. OBJECTIVE To investigate the microcirculation and total light intensity (TLI) corresponding to tissue grayness in DBS target regions with high-resolution LDF recordings, and to define a(More)
Cover page: Hemoglobin reflectance changes related to variations in pO2 and SO2 from optical phantom mimicking brain tissue Abstract The cerebral microcirculation consists of a complex network of small blood vessels that support nerve cells with oxygen and nutrition. The blood flow and oxygen delivery in the microcirculatory blood vessels are regulated(More)
Diffuse reflectance spectroscopy (DRS) can be used to estimate oxygen saturation (SO<sub>2</sub>) of hemoglobin and blood fraction (f<sub>B</sub>) in brain tissue. The aim of the study was to investigate the SO<sub>2</sub> and f<sub>B</sub> in different positions along deep brain stimulation (DBS) trajectories and in specific target regions using DRS and a(More)
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