Abstract
Light reflectance and transmission from soft tissue has been utilized in noninvasive clinical measurement devices such as the photoplethysmograph (PPG) and reflectance pulse oximeter. Most methods of near infrared (NIR) spectroscopy focus on the volume reflectance from a semi-infinite sample, while very few measure transmission. We have previously shown that examining the full scattering profile (FSP), which is the angular distribution of exiting photons, provides more comprehensive information when measuring from a cylindrical tissue, such as earlobe, fingertip and pinched tissue. Our hypothesis is that the change in blood vessel diameter is more significant than the change in optical properties. The findings of this work demonstrate a realistic model for optical tissue measurements such as NIR spectroscopy, PPG and pulse oximetery.
| Original language | English |
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| Title of host publication | Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIV |
| Editors | Dan V. Nicolau, Dror Fixler, Alexander N. Cartwright |
| Publisher | SPIE |
| ISBN (Electronic) | 9781510605954 |
| DOIs | |
| State | Published - 2017 |
| Event | Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIV 2017 - San Francisco, United States Duration: 30 Jan 2017 → 1 Feb 2017 |
Publication series
| Name | Progress in Biomedical Optics and Imaging - Proceedings of SPIE |
|---|---|
| Volume | 10077 |
| ISSN (Print) | 1605-7422 |
Conference
| Conference | Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIV 2017 |
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| Country/Territory | United States |
| City | San Francisco |
| Period | 30/01/17 → 1/02/17 |
Bibliographical note
Publisher Copyright:© 2017 SPIE.
Keywords
- Light tissue interactions
- Monte Carlo simulation
- Multiple scattering
- Photon migration