Using FMRI and FNIRS for localization and monitoring of visual cortex activities

NH Kashou, R Xu, CJ Roberts… - 2007 29th Annual …, 2007 - ieeexplore.ieee.org
The purpose of this study was to design a near infrared spectroscopy (NIRS) sensor head to
continuously monitor visual cortex activation. Visual cortex activation regions as a result of …

Development of high-sensitivity near-infrared fluorescence imaging device for early cancer detection

Y Chen, X Intes, B Chance - Biomedical Instrumentation & …, 2005 - meridian.allenpress.com
We have developed a high-sensitivity near-infrared (NIR) optical imaging system for
noninvasive cancer detection based on the molecular-labeled fluorescent contrast agents …

Broadband diffuse optical spectroscopy measurement of hemoglobin concentration during hypovolemia in rabbits

J Lee, DJ Saltzman, AE Cerussi… - Physiological …, 2006 - iopscience.iop.org
Serial blood draws for the assessment of trauma patients' hemoglobin (sHgb) and
hematocrit (sHct) is standard practice. A device that would allow for continuous real-time …

Feasibility of near-infrared diffuse optical spectroscopy on patients undergoing image-guided core-needle biopsy

B Yu, ES Burnside, GA Sisney, JM Harter, C Zhu… - Optics express, 2007 - opg.optica.org
We describe a side-firing fiber optic sensor based on near-infrared spectroscopy for guiding
core needle biopsy diagnosis of breast cancer. The sensor is composed of three side firing …

BOLD MRI vs. NIR spectrophotometry: will the best technique come forward?

JF Dunn, Y Zaim-Wadghiri, BW Pogue… - Oxygen Transport to Tissue …, 1998 - Springer
This paper will discuss the assumptions, strengths and weaknesses of both BOLD imaging
and NIR spectrophotometry with respect to monitoring tissue oxygenation. BOLD, or blood …

Instrument for measurement of optical parameters of turbid media by using diffuse reflectance of laser with oblique incidence angle

HJ Juttula, TP Kananen… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
An instrument for simultaneous measurement of absorption and reduced scattering
coefficients of optically turbid materials is presented. Determination of the coefficient is …

[HTML][HTML] The optical effective attenuation coefficient as an informative measure of brain health in aging

AM Chiarelli, KA Low, EL Maclin, MA Fletcher, TS Kong… - Photonics, 2019 - mdpi.com
Aging is accompanied by widespread changes in brain tissue. Here, we hypothesized that
head tissue opacity to near-infrared light provides information about the health status of the …

Optimum filtering for EROS measurements

EL Maclin, G Gratton, M Fabiani - Psychophysiology, 2003 - Wiley Online Library
The event‐related optical signal (EROS) is a relatively new technology that provides
noninvasive data about the time course of neural activity in circumscribed cortical areas …

Practical improvements on photon diffusion theory: application to isotropic scattering

R Graaff, K Rinzema - Physics in Medicine & Biology, 2001 - iopscience.iop.org
Based on the analysis of an isotropic point source in an infinite, isotropically scattering turbid
medium, we suggest several modifications to the well-known diffusion theory. Compared …

Self calibration iso-pathlength point in cylindrical tissue geometry: solution of steady-state photon diffusion based on the extrapolated zero-boundary

H Duadi, D Piao, D Fixler - OSA Continuum, 2018 - opg.optica.org
Near-infrared optical techniques permit tissue diagnosis by surface measurement. However,
the geometrical shape of this interface profiles the intensity of the surface measurement …