Special Section Technical Briefs

Designing and Implementing a Portable Near-Infrared Imaging System for Monitoring of Human's Brain Functional Activity1

[+] Author and Article Information
Y. R. Fatmehsari

Biomedical Engineering Program,
University of Manitoba,
Winnipeg, MB RL3 0G1, Canada
e-mail: rakhshay@cc.umanitoba.ca

Zahra Moussavi

Biomedical Engineering Program,
University of Manitoba,
Winnipeg, MB R3T 5V6, Canada
e-mail: zahra.moussavi@umanitoba.ca

Accepted and presented at The Design of Medical Devices Conference (DMD2015), April 13-16, 2015, Minneapolis, MN, USA.

Manuscript received March 3, 2015; final manuscript received March 16, 2015; published online April 24, 2015. Editor: Arthur Erdman.

J. Med. Devices 9(2), 020921 (Jun 01, 2015) (2 pages) Paper No: MED-15-1114; doi: 10.1115/1.4030133 History: Received March 03, 2015; Revised March 13, 2015; Online April 24, 2015

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Izzetoglu, K., Ayaz, H., Merzagora, A., Izzetoglu, M., Shewokis, P. A., Bunce, S. C., Pourrezaei, K., Rosen, A., and Onaral, B., 2011, “The Evolution of Field Deployable fNIR Spectroscopy From Bench to Clinical Settings,” J. Innovative Opt. Health Sci., 4(3), pp. 239–250. [CrossRef]
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Fig. 4

The changes in concentration of oxygenated (top line), deoxygenated (bottom line) and total hemoglobin (middle line) of a subject for one channel and in response to VF task; 0–60 s, 60–180 s, and 180–300 s are rest, task, and rest states, respectively

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Fig. 3

The main (control) board of our CW-NIRS system and placement of LEDs and photodiodes on a flexible PCB

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Fig. 2

The order of turning ON and OFF of two wavelengths of three LEDs in our design. (Reproduced with permission from Yurtsever et al. [2]. Copyright 2006 by Drexel University.)

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Fig. 1

Arrangement of LEDs (S1–S3) and photo detectors (D1–D8) in our imaging system. (Reproduced with permission from Yurtsever et al. [2]. Copyright 2006 by Drexel University.)



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