In vivo swine myocardial tissue characterization and monitoring during open chest surgery by time-resolved diffuse near-infrared spectroscopy

2011 ◽  
Author(s):  
Lorenzo Spinelli ◽  
Davide Contini ◽  
Andrea Farina ◽  
Alessandro Torricelli ◽  
Antonio Pifferi ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Tissue Characterization ◽  
Near Infrared ◽  
Myocardial Tissue ◽  
Time Resolved ◽  
Open Chest ◽  
Chest Surgery ◽  
Myocardial Tissue Characterization

scholarly journals A Versatile Setup for Time-Resolved Functional Near Infrared Spectroscopy Based on Fast-Gated Single-Photon Avalanche Diode and on Four-Wave Mixing Laser

2019 ◽  
Vol 9 (11) ◽  
pp. 2366 ◽  
Author(s):  
Laura Di Sieno ◽  
Alberto Dalla Mora ◽  
Alessandro Torricelli ◽  
Lorenzo Spinelli ◽  
Rebecca Re ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Single Photon ◽  
Wave Mixing ◽  
Functional Near Infrared Spectroscopy ◽  
Time Resolved ◽  
Diffusive Medium ◽  
Spectroscopy System

In this paper, a time-domain fast gated near-infrared spectroscopy system is presented. The system is composed of a fiber-based laser providing two pulsed sources and two fast gated detectors. The system is characterized on phantoms and was tested in vivo, showing how the gating approach can improve the contrast and contrast-to-noise-ratio for detection of absorption perturbation inside a diffusive medium, regardless of source-detector separation.

ERRATA

PEDIATRICS ◽  
1993 ◽  
Vol 92 (1) ◽  
pp. 190-190
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Neurological Disorders ◽  
Near Infrared ◽  
Time Resolved

In the article, "A Report of the National Institute of Neurological Disorders and Stroke Workshop on Near Infrared Spectroscopy" by Hirtz (Pediatrics. 1993;91:414-417), on page 416, middle of the second paragraph, "The accuracy of time-resolved methods is 30% of saturation..." should read "The accuracy of time resolved methods is 3% of saturation ..."

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