R D Hoge
Overview
Explore the profile of R D Hoge including associated specialties, affiliations and a list of published articles.
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Articles
29
Citations
1566
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Recent Articles
1.
Tancredi F, Girouard H, Hoge R
Med Hypotheses
. 2015 Apr;
85(1):25-36.
PMID: 25858437
Increases in blood osmolarity have been shown to exert a vasodilatory effect on cerebral and other vasculature, with accompanying increases in blood flow. It has also been shown that, through...
2.
Gauthier C, Desjardins-Crepeau L, Madjar C, Bherer L, Hoge R
Neuroimage
. 2012 Sep;
63(3):1353-63.
PMID: 22986357
We have recently described an extension of calibrated MRI, which we term QUO2 (for QUantitative O(2) imaging), providing absolute quantification of resting oxidative metabolism (CMRO(2)) and oxygen extraction fraction (OEF(0))....
3.
Xie G, Piche M, Khoshnejad M, Perlbarg V, Chen J, Hoge R, et al.
Neuroimage
. 2012 Jul;
63(1):245-52.
PMID: 22776463
The evaluation of spinal cord neuronal activity in humans with functional magnetic resonance imaging (fMRI) is technically challenging. Major difficulties arise from cardiac and respiratory movement artifacts that constitute significant...
4.
Madjar C, Gauthier C, Bellec P, Birn R, Brooks J, Hoge R
Neuroimage
. 2012 Mar;
61(1):41-9.
PMID: 22418394
Carbon dioxide (CO(2)), a potent vasodilator, is known to have a significant impact on the blood-oxygen level dependent (BOLD) signal. With the growing interest in studying synchronized BOLD fluctuations during...
5.
Gauthier C, Hoge R
Neuroimage
. 2012 Jan;
60(2):1212-25.
PMID: 22227047
We present a method allowing determination of resting cerebral oxygen metabolism (CMRO₂) from MRI and end-tidal O₂ measurements acquired during a pair of respiratory manipulations producing different combinations of hypercapnia...
6.
Gauthier C, Madjar C, Tancredi F, Stefanovic B, Hoge R
Neuroimage
. 2010 Oct;
54(2):1001-11.
PMID: 20887792
Breathing a mixture of 10% CO(2) with 90% O(2) (referred to here as carbogen-10) increases blood flow due to the vasodilatory effect of CO(2), and raises blood O(2) saturation due...
7.
Cohen-Adad J, Gauthier C, Brooks J, Slessarev M, Han J, Fisher J, et al.
Neuroimage
. 2010 Jan;
50(3):1074-84.
PMID: 20060914
Functional MRI of the spinal cord is challenging due to the small cross section of the cord and high level of physiological noise. Though blood oxygenation level-dependent (BOLD) contrast has...
8.
Gasic G, Smoller J, Perlis R, Sun M, Lee S, Kim B, et al.
Am J Med Genet B Neuropsychiatr Genet
. 2009 Apr;
150B(6):762-81.
PMID: 19388013
Brain derived neurotrophic factor (BDNF) regulates neural development and synaptic transmission. We have tested the hypothesis that functional variation in the BDNF gene (Val66Met polymorphism, rs6265) affects brain reward circuitry...
9.
Cohen-Adad J, Hoge R, Leblond H, Xie G, Beaudoin G, Song A, et al.
Neuroimage
. 2008 Oct;
44(2):328-39.
PMID: 18938251
Functional magnetic resonance imaging (fMRI) of the spinal cord has been the subject of intense research for the last ten years. An important motivation for this technique is its ability...
10.
Cohen-Adad J, Descoteaux M, Rossignol S, Hoge R, Deriche R, Benali H
Neuroimage
. 2008 Jun;
42(2):739-49.
PMID: 18562214
Magnetic resonance diffusion tensor imaging (DTI) has been extensively applied to the spinal cord for depicting its architecture and for assessing its integrity following spinal lesions. However, DTI is limited...