Results 11 to 20 of about 995,166 (375)
Near-infrared spectroscopy [PDF]
Journal of Neuroanaesthesiology and Critical Care, 2015 Tissue ischaemia can be a significant contributor to increased morbidity and mortality. Conventional oxygenation monitoring modalities measure systemic oxygenation, but regional tissue oxygenation is not monitored.
Virendra Jain, Hari H Dash
doaj +5 more sources
Near-infrared spectroscopy in NGC 7538 [PDF]
Astronomy and Astrophysics, 2010 The characterisation of the stellar population toward young high-mass star-forming regions allows to constrain fundamental cluster properties like distance and age.
A. Bik +52 more
core +4 more sources
Near infrared oximetry and near infrared spectroscopy [PDF]
Anaesthesia, 1994 Huw Owen-Reece +4 more
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Near infrared spectroscopy [PDF]
Anaesthesia, 1996 NIRS is an attractive monitoring technology because it is a noninvasive, real-time, repeatable method that allows for regional assessment of the adequacy of tissue oxygenation. It is able to evaluate the oxygenation state of hemoglobin in tissue and redox state of cyt a1,a3, which reflects the overall activity of oxidative metabolism in the cells.
L. A. Duncan +2 more
openaire +5 more sources
Near infrared spectroscopy [PDF]
Anaesthesia, 1994 The near-infrared portion of the electromagnetic spectrum is located between the visible and mid-range infrared (MIR) sections, roughly 750–2500 nm or 13,333–4000 cm 1 (see Fig. 6.1). It consists (mainly) of overtones and combinations of the bands found in the mid-range infrared region (4000–200 cm ).
I.M. Williams +3 more
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British Journal of Anaesthesia, 1999 Near-infrared spectroscopy (NIRS) is a relatively new technology that offers the enormous advantage of making measurements in vivo of changes in cerebral hemodynamics and oxygenation. Because NIRS is noninvasive and portable, it can provide real-time measurements of these changes at the bedside.
Clare E. Elwell +3 more
openaire +5 more sources
Near-Infrared Spectroscopy in Extremely Preterm Infants
Frontiers in Pediatrics, 2021 With advances in neonatal care, survival of premature infants at the limits of viability has improved significantly. Despite these improvement in mortality, infants born at 22–24 weeks gestation are at a very high risk for short- and long-term ...
Leeann R. Pavlek +4 more
doaj +1 more source
Near-infrared spectroscopy of Miranda [PDF]
Astronomy & Astrophysics, 2014 Aims. We present new near-infrared spectra of the leading and trailing hemispheres of Uranus’s icy satellite Miranda. This body is probably the most remarkable of all the satellites of Uranus, because it displays series of surface features such as faults, craters, and large-scale upwelling, a remnant of a geologically very active past. Methods.
A. Alvarez-Candal +5 more
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Frontiers in Neuroscience, 2020 Similar to functional magnetic resonance imaging (fMRI), functional near-infrared spectroscopy (fNIRS) detects the changes of hemoglobin species inside the brain, but via differences in optical absorption.
Wei-Liang Chen +12 more
semanticscholar +1 more source
Validating a functional near-infrared spectroscopy diagnostic paradigm for Major Depressive Disorder
Scientific Reports, 2020 Reduced haemodynamic response in the frontotemporal cortices of patients with major depressive disorder (MDD) has been demonstrated using functional near-infrared spectroscopy (fNIRS).
S. F. Husain +9 more
semanticscholar +1 more source