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Abstract #3799

A Novel Radiative Surface Antenna for High Field Mri

zlem Ipek1, Alexander J.R. Raaijmakers1, Dennis W.J. Klomp1, Jan J. Lagendijk1, Cornelis A.T van den Berg1

1Radiotherapy and Radiology, UMC Utrecht, Utrecht, Netherlands

A radiative surface antenna is compared to a stripline element in terms of measured and simulated B1+ field and simulated SAR. The radiative antenna is suitable for high field imaging of deeply situated organs and designed to effectively couple an electromagnetic wave into the body. It consists of a dielectric substrate with two copper strips fed by a coaxial cable. Due to the radiative principle, the radiative antenna shows two times higher B1+ field at depth of the phantom as well as six times lower maximum SAR at the surface of the phantom in comparison to a conventional stripline element.