R D Hoge
Affiliation: Harvard University
- Simultaneous recording of task-induced changes in blood oxygenation, volume, and flow using diffuse optical imaging and arterial spin-labeling MRIR D Hoge
Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Building 149 13th Street, Charlestown, MA 02129, USA
Neuroimage 25:701-7. 2005..The ratio of fractional changes in oxidative metabolism to fractional change in blood flow was found to be 0.56 +/- 0.08, in general agreement with previous studies of flow-metabolism coupling...
- A temporal comparison of BOLD, ASL, and NIRS hemodynamic responses to motor stimuli in adult humansT J Huppert
Harvard Medical School Graduate Program in Biophysics, Massachusetts General Hospital, Charlestown, MA 02129, USA
Neuroimage 29:368-82. 2006..The observed co-variance in these parameters between subjects is in agreement with hemodynamic models and provides further support that fMRI and NIRS have similar vascular sensitivity...
- BOLD signal responses to controlled hypercapnia in human spinal cordJ Cohen-Adad
Unité de Neuroimagerie Fonctionnelle, Centre de Recherche, Institut Universitaire de Geriatrie de Montreal, Department of Physiology, Universite de Montreal, Montreal, Canada
Neuroimage 50:1074-84. 2010..Finely, we believe that the use of controlled global stimuli, such as hypercapnia, will help assess the effectiveness of new acquisition techniques...
- Can the cerebral metabolic rate of oxygen be estimated with near-infrared spectroscopy?D A Boas
Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
Phys Med Biol 48:2405-18. 2003..A more precise estimate of the flow-consumption ratio will require better estimates of the model parameters or flow information, as can be provided by combining NIRS with fMRI...
- Oxidative metabolism and the detection of neuronal activation via imagingR D Hoge
Nuclear Magnetic Resonance Center, Massachusetts General Hospital, Charlestown, MA, USA
J Chem Neuroanat 22:43-52. 2001....
- Comparison of physiological noise at 1.5 T, 3 T and 7 T and optimization of fMRI acquisition parametersC Triantafyllou
MGH MIT HMS A A Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Department of Radiology, Charlestown, 02129, USA
Neuroimage 26:243-50. 2005....
- In vivo DTI of the healthy and injured cat spinal cord at high spatial and angular resolutionJ Cohen-Adad
Groupe de Recherche sur le Système Nerveux Central, Department of Physiology, Faculty of Medicine, Universite de Montreal, Montreal, QC, Canada
Neuroimage 40:685-97. 2008..Important outcomes of this work are (i) tractography-based localisation of anatomical tracts in the thoraco-lumbar spinal cord and (ii) in vivo assessment of axonal integrity following experimental spinal cord injury...