A multidistance probe arrangement NIRS for detecting absorption changes in cerebral gray matter layer

Toru Yamada; Shinji Umeyama; Keiji Matsuda

doi:10.1117/12.841559

23 February 2010 A multidistance probe arrangement NIRS for detecting absorption changes in cerebral gray matter layer

Toru Yamada, Shinji Umeyama, Keiji Matsuda

Proceedings Volume 7557, Multimodal Biomedical Imaging V; 75570X (2010) https://doi.org/10.1117/12.841559
Event: SPIE BiOS, 2010, San Francisco, California, United States

Abstract

We provide theoretical validation of the brain-functional detection using multidistance probe arrangement based on Monte Carlo simulations of five-layered model in which both scattering and absorption changes occur. It shows that optimized multidistance probe arrangement can be effective in removing interferences by scattering and absorption changes in upper layers and extracting absorption change in the gray matter layer. Using newly designed probes and their holder system, both conventional and proposed fNIRS measurements were implemented with non-functional (body and head movements and respiratory change) and functional (finger opposition) tasks. Artifacts, even if it correlate with task sequence, were well reduced. Functional signals were well localized at lateralized cerebral functional area.

Citation Download Citation

Toru Yamada, Shinji Umeyama, and Keiji Matsuda "A multidistance probe arrangement NIRS for detecting absorption changes in cerebral gray matter layer", Proc. SPIE 7557, Multimodal Biomedical Imaging V, 75570X (23 February 2010); https://doi.org/10.1117/12.841559

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