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Journal of Sensors and Sensor Systems An open-access peer-reviewed journal
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Volume 5, issue 1
J. Sens. Sens. Syst., 5, 137-145, 2016
https://doi.org/10.5194/jsss-5-137-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
J. Sens. Sens. Syst., 5, 137-145, 2016
https://doi.org/10.5194/jsss-5-137-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Regular research article 06 Apr 2016

Regular research article | 06 Apr 2016

Signal modeling of an MRI ribbon solenoid coil dedicated to spinal cord injury investigations

Christophe Coillot1, Rahima Sidiboulenouar1, Eric Nativel2, Michel Zanca1,4, Eric Alibert1, Maida Cardoso1, Guillaume Saintmartin1,3, Harun Noristani3, Nicolas Lonjon3,4, Marine Lecorre3,4, Florence Perrin3, and Christophe Goze-Bac1 Christophe Coillot et al.
  • 1Laboratoire Charles Coulomb (L2C-UMR5221), BioNanoNMRI group, University of Montpellier, Place Eugene Bataillon, 34095 Montpellier, France
  • 2Institut d'Electronique et des Systèmes (IES-UMR5214), University of Montpellier, Campus Saint-Priest, 34095 Montpellier, France
  • 3Institut des Neurosciences de Montpellier (INSERM U1051), University of Montpellier, 34095 Montpellier, France
  • 4Nuclear medicine, CMC Gui de Chauliac, University Hospital Montpellier, 34095 Montpellier, France

Abstract. Nuclear magnetic resonance imaging (NMRI) is a powerful tool for biological investigations. Nevertheless, the imaging resolution performance results in the combination of the magnetic field (B0) and the antenna efficiency. This latter one results in a compromise between the size of the sample, the location of the region of interest and the homogeneity requirement. In the context of spinal cord imaging on mice, a ribbon solenoid coil is used to enhance the efficiency of the MRI experiment. This paper details the calculation of the local magnetization contribution to the induced voltage of MRI coils. The modeling is illustrated on ribbon solenoid antennas used in emitter–receiver mode for the study. The analytical model, which takes into account the emitting mode, the receiving step and the imaging sequence, is compared to the measurement performed on a 9.4T VARIAN MRI apparatus. The efficiency of the antenna, in terms of signal to noise ratio, is significantly enhanced with respect to a commercial quadrature volumic antenna, given a significant advantage for the study of spinal cord injuries.

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Magnetic resonance imaging (MRI) is a powerful tool for biological investigations. Nevertheless, the imaging resolution performance results in the combination of the static magnetic field strength and the radio-frequency coil efficiency. In the context of spinal cord lesion studies, a ribbon solenoid coil is used to enhance the imaging quality of the MRI experiment on a tissue allowing one to perform high-resolution imaging with potential benefits for biological studies.
Magnetic resonance imaging (MRI) is a powerful tool for biological investigations. Nevertheless,...
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