国際ジャーナル掲載情報

|

Authors: Yamakoshi, Y., Matsumura, K., Yamakoshi, T., Lee, J., Rolfe, P., Kato, Y., Shimizu, K., & Yamakoshi, K.
Title: Side-scattered finger-photoplethysmography: experimental investigations toward practical noninvasive measurement of blood glucose
Journal(書誌情報): Journal of Biomedical Optics, 22(6), 067001
doi: 10.1117/1.JBO.22.6.067001
論文URL: https://doi.org/10.1117/1.JBO.22.6.067001

Abstract: The aim of this study was to discover a simple/convenient geometrical arrangement of radiation sources and detector to acquire finger-photoplethysmograms (PPGs) with wavelength regions of blood glucose (BGL) absorption, toward practical noninvasive BGL measurement. First, we compared PPGs with three wavelengths: 808 nm (without water absorption), 1160 nm (with weak water absorption), and 1600 nm (with nearly peak BGL absorption and strong water absorption), while the source-detector spacing was successively increased circumferentially around a fingertip. In 10 healthy subjects, we observed clear cardiac-related pulsatile components of PPG signals at 808 and 1160 nm in any incident positions with more than 15 dB of signal-to-noise ratio (S/N), but reliable PPG detections at 1600 nm with more than 10 dB of S/N was only possible when the source-detector distance was less than 3 mm around the fingertip circumference. Second, with this arrangement, an experiment was performed using six wavelengths to cover glucose absorption bands (from 1550 to 1749 nm), obtaining pulsatile PPG signals with more or less 15 dB of S/N. Through the present experiments, this orthogonal arrangement of the source and detector to detect forward- and side-scattered radiation through the tissue is appropriate for PPG measurements with wavelength regions where there is potential for BGL measurement.

著者Contact先の email: matsumura[at]ist.hokudai.ac.jp([at]を@に変更してください。)

カテゴリ

このブログ記事について

このページは、officeが2017年6月28日 11:24に書いたブログ記事です。

ひとつ前のブログ記事は「日本認知心理学会高齢者心理学部会 第15回研究会のご案内」です。

次のブログ記事は「HCGシンポジウム2017」です。

最近のコンテンツはインデックスページで見られます。過去に書かれたものはアーカイブのページで見られます。

Powered by Movable Type 4.0