Time-Resolved multi-wavelength, dual-channel system for diffuse optical spectroscopy: performance assessment

2019 ◽  
Author(s):  
Marta Zanoletti ◽  
Marco Renna ◽  
Mauro Buttafava ◽  
Anurag Behera ◽  
Pranav Lanka ◽  
...  
Keyword(s):  
Performance Assessment ◽  
Optical Spectroscopy ◽  
Channel System ◽  
Time Resolved ◽  
Diffuse Optical Spectroscopy ◽  
Dual Channel ◽  
Multi Wavelength

scholarly journals Monitoring radiofrequency ablation of biological tissue using broadband time-resolved diffuse optical spectroscopy

2019 ◽  
Author(s):  
Pranav Lanka ◽  
Francis Kalloor Joseph ◽  
Hindrik Kruit ◽  
Sanathana Konugolu Venkata Sekar ◽  
Andrea Farina ◽  
...  
Keyword(s):  
Radiofrequency Ablation ◽  
Optical Spectroscopy ◽  
Biological Tissue ◽  
Time Resolved ◽  
Diffuse Optical Spectroscopy

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.

scholarly journals Eight-Wavelength, Dual Detection Channel Instrument for Near-Infrared Time-Resolved Diffuse Optical Spectroscopy

2019 ◽  
Vol 25 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Marco Renna ◽  
Mauro Buttafava ◽  
Anurag Behera ◽  
Marta Zanoletti ◽  
Laura Di Sieno ◽  
...  
Keyword(s):  
Optical Spectroscopy ◽  
Near Infrared ◽  
Time Resolved ◽  
Diffuse Optical Spectroscopy ◽  
Dual Detection

Time-resolved diffuse optical spectroscopy of small tissue samples

2007 ◽  
Author(s):  
Paola Taroni ◽  
Daniela Comelli ◽  
Andrea Farina ◽  
Antonio Pifferi ◽  
Alwin Kienle
Keyword(s):  
Optical Spectroscopy ◽  
Tissue Samples ◽  
Time Resolved ◽  
Diffuse Optical Spectroscopy ◽  
Small Tissue

Time-resolved diffuse optical spectroscopy of wood

2007 ◽  
Author(s):  
Cosimo D'Andrea ◽  
Andrea Farina ◽  
Daniela Comelli ◽  
Antonio Pifferi ◽  
Paola Taroni ◽  
...  
Keyword(s):  
Optical Spectroscopy ◽  
Time Resolved ◽  
Diffuse Optical Spectroscopy

scholarly journals Time-Resolved Diffuse Optical Spectroscopy up to 1700 nm by Means of a Time-Gated InGaAs/InP Single-Photon Avalanche Diode

2012 ◽  
Vol 66 (8) ◽  
pp. 944-950 ◽  
Author(s):  
Ilaria Bargigia ◽  
Alberto Tosi ◽  
Andrea Bahgat Shehata ◽  
Adriano Della Frera ◽  
Andrea Farina ◽  
...  
Keyword(s):  
Optical Spectroscopy ◽  
Single Photon ◽  
Time Resolved ◽  
Diffuse Optical Spectroscopy ◽  
Avalanche Diode

Time-resolved diffuse optical spectroscopy of small tissue samples

2007 ◽  
Author(s):  
Paola Taroni ◽  
Daniela Comelli ◽  
Andrea Farina ◽  
Antonio Pifferi ◽  
Alwin Kienle
Keyword(s):  
Optical Spectroscopy ◽  
Tissue Samples ◽  
Time Resolved ◽  
Diffuse Optical Spectroscopy ◽  
Small Tissue

scholarly journals Time resolved diffuse optical spectroscopy with geometrically accurate models for bulk parameter recovery

2016 ◽  
Vol 7 (9) ◽  
pp. 3784 ◽  
Author(s):  
James A. Guggenheim ◽  
Ilaria Bargigia ◽  
Andrea Farina ◽  
Antonio Pifferi ◽  
Hamid Dehghani
Keyword(s):  
Optical Spectroscopy ◽  
Time Resolved ◽  
Diffuse Optical Spectroscopy ◽  
Parameter Recovery ◽  
Bulk Parameter

scholarly journals Time-Resolved Diffuse Optical Spectroscopy: A Differential Absorption Approach

2010 ◽  
Vol 64 (11) ◽  
pp. 1220-1226 ◽  
Author(s):  
Paola Taroni ◽  
Andrea Bassi ◽  
Lorenzo Spinelli ◽  
Rinaldo Cubeddu ◽  
Antonio Pifferi
Keyword(s):  
Optical Spectroscopy ◽  
Differential Absorption ◽  
Time Resolved ◽  
Diffuse Optical Spectroscopy
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