Partial optical path length in the scalp in subject-specific head models for multi-distance probe configuration of near infrared spectroscopy

Taku Yanagisawa; Hiroshi Kawaguchi; Takayuki Obata; Eiji Okada

doi:10.1117/12.2319286

24 April 2018 Partial optical path length in the scalp in subject-specific head models for multi-distance probe configuration of near infrared spectroscopy

Taku Yanagisawa, Hiroshi Kawaguchi, Takayuki Obata, Eiji Okada

Author Affiliations +

Proceedings Volume 10711, Biomedical Imaging and Sensing Conference; 107111J (2018) https://doi.org/10.1117/12.2319286
Event: SPIE Structured Light, 2018, Yokohama, Japan

Abstract

In the brain function measurement by near infrared spectroscopy using a multi-distance probe configuration, the ratio of the partial optical path length in the scalp for the long spacing probe pair to that for the short spacing probe pair is important for the calculation to eliminate the scalp component in the signal. Light propagation in the subject specific head models of 45 volunteers was calculated to predict the dependence of the partial optical path length in the scalp and the weighting factor for the multi-distance probe configuration. The weighting factor ranges from 1.0 to 2.3 and increases with the scalp thickness when the scalp thickness is less than 15 mm.

Citation Download Citation

Taku Yanagisawa, Hiroshi Kawaguchi, Takayuki Obata, and Eiji Okada "Partial optical path length in the scalp in subject-specific head models for multi-distance probe configuration of near infrared spectroscopy", Proc. SPIE 10711, Biomedical Imaging and Sensing Conference, 107111J (24 April 2018); https://doi.org/10.1117/12.2319286

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available