Rajkumar E.R

Safaie J

Gupta R

Pattnaik D

Abrishamimoghaddam H

Grebe R

Wallois F.

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Development of an autonomic portable single-board computer based high resolution NIRS device for microcirculation analysis

2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society

Journal of Near Infrared Spectroscopy

PDF of Journal of Near Infrared Spectroscopy Vol. 24 Issue 1 (2016)

Near infrared spectroscopy (NIRS) is regarded as a potential medical diagnostic technique for investigation of hemodynamic changes. However, uncertainties pertaining to the origin of NIRS signals have hampered its clinical interpretation. The uncertainities in NIRS measurements especially in case of living tissues are due to lack of rigorous combined theoretical-experimental studies resulting in clear understanding of the origin of NIRS signals. For their reliable interpretation it is important to understand the relationship between spatial changes in optical properties and corresponding changes in the NIRS signal. We investigated spatial sensitivity of near infrared optical measurements using an experimental approach. It uses a liquid optical phantom as tissue equivalent, which is explored under robot-control by a small, approximately point like perturbation of desired optical properties, and a NIRS instrument for trans-illumination/reflection measurements. The experimentally obtained sensitivity has been analyzed and compared with numerical simulations. In preliminary experiments we investigated the influence of various optical properties of the medium and of source/detector distances on the spatial sensitivity distribution. The acquired sensitivity maps can be used to define characteristic parameters. As an example, we used a 25% threshold to define a penetration depth measure which provides values in good accordance with published ones. To the best of our knowledge this is the first experimental study of NIRS spatial sensitivity. The presented method will allow in depth experimental investigation of the influence of various conditions pertaining to medium such as optical properties of tissue (scattering and absorption) and of the source/detector configuration. © 2011 Optical Society of America.

Biomedical Optics Express

Experimental investigation of NIRS spatial sensitivity

Neurophysiologie Clinique/Clinical Neurophysiology

EEG-NIRS in epilepsy in children and neonates

2009 3rd International Conference on Bioinformatics and Biomedical Engineering

Design of a Portable Near Infra-Red Spectroscopy System for Tissue Oxygenation Measurement

Seizure

Non-invasive pre-surgical investigation of a 10 year-old epileptic boy using simultaneous EEG–NIRS

Journal	Data powered by Typeset2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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Open Access	0