Abstract
Near infrared systems (NIRS) are able to detect hemodynamic changes in the brain cortex and offer several advantages to be considered as a suitable technology to address problems in medicine. The objective of this work was to design a NIRS prototype for monitoring the dorsolateral prefrontal cortex activity related with tobacco addiction. An analysis of the needs of potential users helped us to establish the design of a device with a safe optoelectronic circuit mounted on an adaptable and portable chase (size of 7 cm × 7 cm × 4 cm and weight of 100 g). Our device is capable to acquire two signals (750 nm and 850 nm) continuously while a subject makes arithmetic tasks. Both signals follow a reliable behavior and are in agreement with the reports from the literature. A clinical protocol comparing non-smokers vs smoker subjects is in progress to validate the results of our device.
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Acknowledgments
To DGAPA-UNAM project PAPIIT 2017-IA106917 “Sistema de registro no invasivo de la actividad cerebral relacionada al consumo de tabaco” and to Dr. Alejandro Santos for his help preparing this manuscript.
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Gorostieta-Esperon, M.A.S., Jiménez-Ángeles, L. (2020). Design of a Suitable NIR System for Monitoring Hemodynamic Changes in the Brain Prefrontal Cortex. In: González Díaz, C., et al. VIII Latin American Conference on Biomedical Engineering and XLII National Conference on Biomedical Engineering. CLAIB 2019. IFMBE Proceedings, vol 75. Springer, Cham. https://doi.org/10.1007/978-3-030-30648-9_76
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