Kernel flow: a high channel count scalable TD-fNIRS system
Abstract
Time-Domain Near-Infrared Spectroscopy (TD-NIRS) has been considered as the gold standard of non-invasive optical brain imaging devices. However, due to the high cost, complexity, and large form-factor, it has not been as widely adopted as Continuous Wave (CW) NIRS systems. Kernel Flow is a TD-NIRS system that has been designed to break through these limitations by maintaining the performance of a research grade TD-NIRS system while integrating all of the components into a small modular device. The Kernel Flow modules are built around miniaturized laser drivers, custom integrated circuits, and specialized detectors. The modules can be assembled into a system with dense channel coverage over the entire head. We show performance similar to benchtop systems with our miniaturized device.
- Publication:
-
Integrated Sensors for Biological and Neural Sensing
- Pub Date:
- March 2021
- DOI:
- 10.1117/12.2582888
- Bibcode:
- 2021SPIE11663E..0BB