Giulio
Giovannetti1, Francesca Frijia2, Luca Menichetti1,
Maria Filomena Santarelli1, Valentina Hartwig1, Luigi
Landini3, Massimo Lombardi2
1Institute of Clinical Physiology,
National Research Council, Pisa, Italy, Italy; 2"G.
Monasterio" Foundation, Pisa, Italy; 3Department of
Information Engineering, University of Pisa
Hyperpolarization
methods have been proposed to enhance the polarization of nuclear spins such
as 13C. Efficient imaging of such molecules requires new multifrequency
coils. However, when the coil are tuned at lower frequency with respect to 1H
frequency, such as for 13C experiments, the SNR decreases. Since the SNR
performance increases as the sensitivity of the coils it is important to
estimate this parameter for an optimized coil design. The purpose of this
work is to verify the accuracy of perturbing spheres method for coil
sensitivity estimation, by testing two 13C birdcages and demonstrating its
efficacy for coil sensitivity estimation.