Interferometric technique for measuring cerebral blood flow using inexpensive CMOS sensors
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United States of America Patent
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May 14, 2024
Grant Date -
Feb 4, 2021
app pub date -
Apr 15, 2019
filing date -
Apr 16, 2018
priority date (Note) -
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Abstract
The disclosed embodiments provide a system that non-invasively analyzes blood flow in a sample of living tissue. During operation, the system obtains light from a temporally coherent source, and splits the obtained light between a reference path and a sample path. Next, the system multiply scatters light from the sample path by passing the light through the sample. The system then recombines light from the reference path and the multiply scattered light from the sample path. Next, the system uses a sensor array to detect an interference pattern resulting from the recombination. Finally, the system analyzes signals from the sensor array to determine a blood flow in the sample.
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