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Abstract #0134

Metasurface for B1+ homogenization in abdominal MRI at 3T

Vsevolod Vorobyev1, Alena Shchelokova1, Aleksander Efimtcev1,2, Juan Domingo Baena3, Pavel Belov1, and Stanislav Glybovski1
1ITMO University, Saint-Petersburg, Russian Federation, 2Federal Almazov North-West Medical Research Center, Saint-Petersburg, Russian Federation, 3Universidad Nacional de Colombia, Bogota, Colombia

A novel approach for improving B1+ homogeneity in the abdominal area at 3T MRI is proposed and demonstrated numerically and experimentally. The approach is implemented via the ultralight and thin metasurface. The metasurface consists of metal wires loaded with capacitors printed on a flexible dielectric substrate of polyimide. Numerical studies and imaging of a volunteer covered with the proposed metasurface showed the same homogeneity of the transmit radiofrequency field distribution at the region-of-interest as the conventional dielectric pads.

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