Abstract #1300
MR-compatible normobaric gas mixer for hypercapnic vasoreactivity studies on humans
L. Lamalle 1,2 , J.-B. Menut 3 , S. Vergs 4 , J. M. Warnking 5,6 , and A. Krainik 7,8
1
Inserm US 17, Grenoble, France,
2
Universit
Grenoble Alpes UMS IRMaGe, Grenoble, France,
3
SMTEC,
Sport & Medical Technologies S.A., Nyon, Switzerland,
4
Universit
Grenoble Alpes Laboratoire HP2, Grenoble, France,
5
Inserm
U836 (quipe 5), Grenoble, France,
6
Universit
Grenoble Alpes Grenoble Institut des Neurosciences,
Grenoble, France,
7
Universit
Grenoble Alpes Facult de Mdecine, Grenoble, France,
8
CHU
de Grenoble Unit IRM, Grenoble, France
A normobaric gas mixer was developed to allow MR-based
hypercapnic vasoreactivity studies on humans. It
operates safely close to the magnet and can be remotely
computer controlled. Hypercapnic episodes with FiCO
2
less
than 10 % can be programmed to chain in succession for
prescribed numbers of MR scanner trigger events. Device
performance is demonstrated in a cerebral BOLD
block-designed fMRI experiment.
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