targeted traveling wave MRI
نویسندگان
چکیده
Introduction At high magnetic field strengths, travelling wave MRI can be used to solve the standing wave problem of volume resonators [1]. However, travelling wave MRI suffers from electromagnetic field-attenuation and high whole body energy deposition (SAR), so that only the distal parts of the body can be imaged. In this work we introduce a new travelling wave RF coil. The coil guides the travelling wave to any desired region in the body and thus limits the whole-body SAR. For wave guidance, a coaxial RF structure is designed, which utilizes a central gap to illuminate the target region.
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