Innovative Methodology Human respiratory muscle blood flow measured by near-infrared spectroscopy and indocyanine green
نویسندگان
چکیده
Jordan A. Guenette, Ioannis Vogiatzis, Spyros Zakynthinos, Dimitrios Athanasopoulos, Maria Koskolou, Spyretta Golemati, Maroula Vasilopoulou, Harrieth E. Wagner, Charis Roussos, Peter D. Wagner, and Robert Boushel School of Human Kinetics, The University of British Columbia, Vancouver, British Columbia, Canada; Department of Critical Care Medicine and Pulmonary Services, Evangelismos Hospital, “M. Simou and G. P. Livanos Laboratories,” National and Kapodistrian University of Athens, Athens, Greece; Department of Physical Education and Sport Sciences, National and Kapodistrian University of Athens, Athens, Greece; Department of Medicine, University of California-San Diego, La Jolla, California; Department of Exercise Science, Concordia University, Montreal, Quebec, Canada; and Department of Biomedical Sciences, Panum Institute, University of Copenhagen, Copenhagen, Denmark
منابع مشابه
Human respiratory muscle blood flow measured by near-infrared spectroscopy and indocyanine green.
Measurement of respiratory muscle blood flow (RMBF) in humans has important implications for understanding patterns of blood flow distribution during exercise in healthy individuals and those with chronic disease. Previous studies examining RMBF in humans have required invasive methods on anesthetized subjects. To assess RMBF in awake subjects, we applied an indicator-dilution method using near...
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Using near-infrared spectroscopy (NIRS) and the tracer indocyanine green (ICG), we quantified blood flow in calf muscle and around the Achilles tendon during plantar flexion (1-9 W). For comparison, blood flow in calf muscle was determined by dye dilution in combination with magnetic resonance imaging measures of muscle volume, and, for the peritendon region, blood flow was measured by (133)Xe ...
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Near-infrared spectroscopy (NIRS) in combination with indocyanine green (ICG) dye has recently been used to measure respiratory muscle blood flow (RMBF) in humans. This method is based on the Fick principle and is determined by measuring ICG in the respiratory muscles using transcutaneous NIRS in relation to the [ICG] in arterial blood as measured using photodensitometry. This method is invasiv...
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This pilot study was designed to determine the feasibility of measuring cerebral blood flow noninvasively after an intravenous bolus of indocyanine green using near-infrared spectroscopy and pulse dye-densitometry. Feasibility aside, this study did not attempt to validate the measured values of cerebral blood flow against an established method of measurement. Twelve healthy volunteers were inve...
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