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Karthik Vishwanath
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Advances in quantitative UV–visible spectroscopy for clinical and pre-clinical application in cancer
JQ Brown, K Vishwanath, GM Palmer, N Ramanujam
Current opinion in biotechnology 20 (1), 119-131, 2009
1492009
Quantitative fluorescence lifetime spectroscopy in turbid media: comparison of theoretical, experimental and computational methods
K Vishwanath, B Pogue, MA Mycek
Physics in Medicine & Biology 47 (18), 3387, 2002
1492002
The effects of internal refractive index variation in near-infrared optical tomography: a finite element modelling approach
H Dehghani, B Brooksby, K Vishwanath, BW Pogue, KD Paulsen
Physics in Medicine & Biology 48 (16), 2713, 2003
1142003
Light transport in biological tissue using three-dimensional frequency-domain simplified spherical harmonics equations
M Chu, K Vishwanath, AD Klose, H Dehghani
Physics in Medicine & Biology 54 (8), 2493, 2009
832009
A Robust Monte Carlo Model for the Extraction of Biological Absorption and Scattering In Vivo
JE Bender, K Vishwanath, LK Moore, JQ Brown, V Chang, GM Palmer, ...
IEEE transactions on biomedical engineering 56 (4), 960-968, 2008
822008
Using optical spectroscopy to longitudinally monitor physiological changes within solid tumors
K Vishwanath, H Yuan, WT Barry, MW Dewhirst, N Ramanujam
Neoplasia 11 (9), 889-900, 2009
742009
Portable, fiber-based, diffuse reflection spectroscopy (DRS) systems for estimating tissue optical properties
K Vishwanath, K Chang, D Klein, YF Deng, V Chang, JE Phelps, ...
Applied spectroscopy 65 (2), 206-215, 2011
672011
Quantitative molecular sensing in biological tissues: an approach to non-invasive optical characterization
M Chandra, K Vishwanath, GD Fichter, E Liao, SJ Hollister, MA Mycek
Optics Express 14 (13), 6157-6171, 2006
642006
Time-resolved photon migration in bi-layered tissue models
K Vishwanath, MA Mycek
Optics Express 13 (19), 7466-7482, 2005
642005
Quantitative optical spectroscopy can identify long-term local tumor control in irradiated murine head and neck xenografts
K Vishwanath, DH Klein, K Chang, T Schroeder, MW Dewhirst, ...
Journal of biomedical optics 14 (5), 054051, 2009
622009
Do fluorescence decays remitted from tissues accurately reflect intrinsic fluorophore lifetimes?
K Vishwanath, MA Mycek
Optics letters 29 (13), 1512-1514, 2004
522004
A three-dimensional finite element model and image reconstruction algorithm for time-domain fluorescence imaging in highly scattering media
Q Zhu, H Dehghani, KM Tichauer, RW Holt, K Vishwanath, F Leblond, ...
Physics in Medicine & Biology 56 (23), 7419, 2011
362011
Oxygen and perfusion kinetics in response to fractionated radiation therapy in FaDu head and neck cancer xenografts are related to treatment outcome
F Hu, K Vishwanath, JK Salama, A Erkanli, B Peterson, JR Oleson, ...
International Journal of Radiation Oncology* Biology* Physics 96 (2), 462-469, 2016
312016
Experimental validation of an inverse fluorescence Monte Carlo model to extract concentrations of metabolically relevant fluorophores from turbid phantoms and a murine tumor model
C Liu, N Rajaram, K Vishwanath, T Jiang, N Ramanujam, GM Palmer
Journal of biomedical optics 17 (7), 077012, 2012
282012
Optical methods for quantitative and label-free sensing in living human tissues: principles, techniques, and applications
RH Wilson, K Vishwanath, MA Mycek
Advances in Physics: X 1 (4), 523-543, 2016
272016
Acute stress attenuates cognitive flexibility in males only: an fNIRS examination
V Kalia, K Vishwanath, K Knauft, BVD Vellen, A Luebbe, A Williams
Frontiers in psychology, 2084, 2018
252018
Rapid ratiometric determination of hemoglobin concentration using UV-VIS diffuse reflectance at isosbestic wavelengths
JE Phelps, K Vishwanath, VTC Chang, N Ramanujam
Optics express 18 (18), 18779-18792, 2010
252010
Fluorescence quenching by polystyrene microspheres in UV-visible and NIR tissue-simulating phantoms
K Vishwanath, W Zhong, M Close, MA Mycek
Optics express 14 (17), 7776-7788, 2006
192006
High frequency sampling of TTL pulses on a Raspberry Pi for diffuse correlation spectroscopy applications
M Tivnan, R Gurjar, DE Wolf, K Vishwanath
Sensors 15 (8), 19709-19722, 2015
172015
Fluorescence spectroscopy in vivo
K Vishwanath, N Ramanujam
Encyclopedia of Analytical Chemistry: Applications, Theory and Instrumentation, 2006
172006
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Articles 1–20