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High permittivity dielectric materials in magnetic resonance imaging

DIETI Contact person / Partner: Giuseppe Ruello


The investigation on the use of High Permittivity Materials (HPM) is a hot topic in ultra high field Magnetic Resonance Imaging (MRI) because it allows improving the signal to noise ratio in many scenarios. A physical based explanation of this phenomenon is still an open problem. The PhD Students are expected to contribute to the advancement of knowledge on this field. They will be called to develop electromagnetic models and to implement numerical tools to find, at least in simple geometries, the optimum configuration for the HPMs.


The objectives are:

  • Comprehension of the physical mechanisms that govern the RF field distribution in MRI scanner;
  • Comprehension of the effects of a HPM layer on the SNR;
  • Identification of optimal configurations for a HPM-array of antennas case.



Can be assigned to one doctoral student of cycle XXXVI