Meeting Banner
Abstract #2807

20-Ch Tx Modular Array for 7T PTX Applications

Tamer S. Ibrahim1, Daniel Stough1, Tiejun Zhao2

1University of Pittsburgh, Pittsburgh, PA, United States; 2Siemens Medical Solutions

In this work, we present the design of a modular transmit head array from sets of coils with highly-coupled elements for 7T head applications. The 20-ch Tx modular array has no distinctive rotation, thus resulting in comparable field coverage in the axial plane and in the z direction. The array has been tested on 15 subjects.

Keywords

addition address adjacent affect affected aforementioned another antennas approximate array arrays attempt attempts axial built capable changing channel channels coil coils collected common comparable composed configuration configurations consideration consistent constituents constructed control conveniently coupled coupling create defined degree degrees design designed designing directly distinctive distribution distributions dominated dominates element elements enable entirely excitation field fits five geometries geometry hardware head highly human identify in vivo independently individual interactions interchanged isolated isolation issues kind lack limit load loaded made maps matrix measured measuring medical minimal modes modular needed network numerically observable open operating optimal optimizations optimized panel panels parallel pattern patterns phantom ports positioning practical practice presence proposes pushed quantitative rather receive replaced risk rotation sample selection sense sensitivity sets several shimming side sides specifically spherical square strengths structures studies subject subjects substituted subtitled successfully superimpose switching system tailor taken theory transmission transmit tuning unchanged underlying user utilized variations variety virtually water whole wide