scholarly journals Non-invasive investigation of adipose tissue by time domain diffuse optical spectroscopy

2020 ◽  
Vol 11 (5) ◽  
pp. 2779
Author(s):  
Pranav Lanka ◽  
Agnese Segala ◽  
Andrea Farina ◽  
Sanathana Konugolu Venkata Sekar ◽  
Enzo Nisoli ◽  
...  
Keyword(s):  
Adipose Tissue ◽  
Optical Spectroscopy ◽  
Time Domain ◽  
Diffuse Optical Spectroscopy ◽  
Non Invasive

scholarly journals Non-invasive Dual-Channel Broadband Diffuse Optical Spectroscopy of Massive Hemorrhage and Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) in Swine

2018 ◽  
Vol 183 (suppl_1) ◽  
pp. 150-156
Author(s):  
Jesse H Lam ◽  
Thomas D O’Sullivan ◽  
Tim S Park ◽  
Jae H Choi ◽  
Robert V Warren ◽  
...  
Keyword(s):  
Optical Spectroscopy ◽  
Massive Hemorrhage ◽  
Balloon Occlusion ◽  
Total Blood ◽  
Diffuse Optical Spectroscopy ◽  
Hemoglobin Oxygen Saturation ◽  
Non Invasive ◽  
Dual Channel ◽  
Tissue Compartments ◽  
Endovascular Balloon Occlusion

Abstract Objective To quantitatively measure tissue composition and hemodynamics during resuscitative endovascular balloon occlusion of the aorta (REBOA) in two tissue compartments using non-invasive two-channel broadband diffuse optical spectroscopy (DOS). Methods Tissue concentrations of oxy- and deoxyhemoglobin (HbO2 and HbR), water, and lipid were measured in a porcine model (n = 10) of massive hemorrhage (65% total blood volume over 1 h) and 30-min REBOA superior and inferior to the aortic balloon. Results After hemorrhage, hemoglobin oxygen saturation (StO2 = HbO2/[HbO2 + HbR]) at both sites decreased significantly (−29.9% and −42.3%, respectively). The DOS measurements correlated with mean arterial pressure (MAP) (R2 = 0.79, R2 = 0.88), stroke volume (SV) (R2 = 0.68, R2 = 0.88), and heart rate (HR) (R2 = 0.72, R2 = 0.88). During REBOA, inferior StO2 continued to decline while superior StO2 peaked 12 min after REBOA before decreasing again. Inferior DOS parameters did not associate with MAP, SV, or HR during REBOA. Conclusions Dual-channel regional tissue DOS measurements can be used to non-invasively track the formation of hemodynamically distinct tissue compartments during hemorrhage and REBOA. Conventional systemic measures MAP, HR, and SV are uncorrelated with tissue status in inferior (downstream) sites. Multi-compartment DOS may provide a more complete picture of the efficacy of REBOA and similar resuscitation procedures.

Non-Invasive Monitoring of Cyanide Toxicity Using Diffuse Optical Spectroscopy in a Rabbit Model

CHEST Journal ◽  
2004 ◽  
Vol 126 (4) ◽  
pp. 874S
Author(s):  
Jennifer Armstrong ◽  
Jangwoen Lee ◽  
Andrew Duke ◽  
Hamza Beydoun ◽  
Kelly Kreuter ◽  
...  
Keyword(s):  
Optical Spectroscopy ◽  
Rabbit Model ◽  
Invasive Monitoring ◽  
Diffuse Optical Spectroscopy ◽  
Cyanide Toxicity ◽  
Non Invasive

200 NON-INVASIVE DETECTION OF CYANIDE TOXICITY AND TREATMENT USING DIFFUSE OPTICAL SPECTROSCOPY

2005 ◽  
Vol 53 (1) ◽  
pp. S113.2-S113
Author(s):  
K. Kreuter ◽  
J. Lee ◽  
J. Armstrong ◽  
B. Tromberg ◽  
S. Mahon ◽  
...  
Keyword(s):  
Optical Spectroscopy ◽  
Diffuse Optical Spectroscopy ◽  
Cyanide Toxicity ◽  
Non Invasive

scholarly journals Special Issue on New Horizons in Time Domain Diffuse Optical Spectroscopy and Imaging

2020 ◽  
Vol 10 (8) ◽  
pp. 2752
Author(s):  
Yoko Hoshi
Keyword(s):  
Infrared Spectroscopy ◽  
Optical Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Time Domain ◽  
Near Infrared ◽  
Special Issue ◽  
Diffuse Optical Spectroscopy ◽  
New Horizons

In 1977, Jöbsis first described the in vivo application of near-infrared spectroscopy (NIRS) [...]

scholarly journals Diffuse Optical Spectroscopy and Imaging to Detect and Quantify Adipose Tissue Browning

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
U. S Dinish ◽  
Chi Lok Wong ◽  
Sandhya Sriram ◽  
Wee Kiat Ong ◽  
Ghayathri Balasundaram ◽  
...  
Keyword(s):  
Adipose Tissue ◽  
Optical Spectroscopy ◽  
Diffuse Optical Spectroscopy ◽  
Tissue Browning
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