Affiliation: University of Illinois
- Near-infrared study of fluctuations in cerebral hemodynamics during rest and motor stimulation: temporal analysis and spatial mappingV Toronov
Department of Physics, University of Illinois at Urbana Champaign, Urbana 61801 3080, USA
Med Phys 27:801-15. 2000..3) The hemodynamic response to stimulation shows a spatial localization and a level of phase synchronization with the motor stimulation that depends on the stimulation period...
- Investigation of human brain hemodynamics by simultaneous near-infrared spectroscopy and functional magnetic resonance imagingV Toronov
Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana Champaign 61801, USA
Med Phys 28:521-7. 2001..We also found a high temporal correlation between the BOLD signal (fMRI) and the deoxy-hemoglobin concentration (NIRS) in the subjects who exhibited low fluctuations in superficial head tissues...
- The roles of changes in deoxyhemoglobin concentration and regional cerebral blood volume in the fMRI BOLD signalVlad Toronov
Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana Champaign, 405 N Mathews Avenue, Urbana, IL 61801, USA
Neuroimage 19:1521-31. 2003..The increase in cerebral blood oxygenation during functional activation is due to an increase in the velocity of blood flow, and occurs without significant swelling of the blood vessels...
- Different time evolution of oxyhemoglobin and deoxyhemoglobin concentration changes in the visual and motor cortices during functional stimulation: a near-infrared spectroscopy studyMartin Wolf
Department of Physics, University of Illinois at Urbana-Champaign, 61801-3080, USA
Neuroimage 16:704-12. 2002..There is evidence that the CMRO(2) increases substantially in the visual cortex, while this is not the case for the motor cortex...
- Level-set algorithm for the reconstruction of functional activation in near-infrared spectroscopic imagingMathews Jacob
University of Illinois at Urbana Champaign, Urbana, Illinois 61820, USA
J Biomed Opt 11:064029. 2006....
- Absolute frequency-domain pulse oximetry of the brain: methodology and measurementsMartin Wolf
Clinic for Neonatology, University Hospital, Frauenklinikstr 10, 8091 Zurich, Switzerland
Adv Exp Med Biol 530:61-73. 2003..fdSaO2 and poSaO2 agree very well (mean difference: -1.2 +/- 2.6%). Changes in SO2 were systematically smaller than in fdSaO2 or poSaO2 probably due to autoregulation. The measurements with 4 and 8 wavelengths had comparable quality...