The InSpectra StO2
Tissue Oxygenation Monitor measures tissue absorbance values between 680-800 nm, and transforms these values using a scaled second derivative equation to provide a tissue spectral measurement that is robust to total hemoglobin and optical path length changes. The depth of tissue measured by the InSpectra StO2
System is directly related to the distance between the illumination fibers and detection fibers: studies have shown that with 15mm sensor spacing, approximately 95% of the detected optical signal is from a depth of 0-14mm.
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