Shielded-coaxial-cable (SCC) coils - the array configuration for maximized central SNR at 7T MRI
Sadri Guler1,2, Giovanni Costa3, Vincent Boer2, Maarten Paulides3, Peter Baltus3, Esben Petersen1,2, and Irena Zivkovic3
1Section for Magnetic Resonance, DTU Health Tech, Technical University of Denmark, Copenhagen, Denmark, 2Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Amager and Hvidovre, Copenhagen, Denmark, 3Electrical Engineering Department, Technical University of Eindhoven, Eindhoven, Netherlands
The shielded-coaxial-cable (SCC) coils have been proposed recently as highly decoupled elements per se. The SCC coils are not very sensitive to bending, elongation and various degrees of overlapping. We experimentally investigated the central SNR when the SCC coils are placed in three different arrangements on a cylindrical object. The highest central SNR (more than 30% higher than in the other two arrangements) was obtained when the coils were elongated and adjacent to each other. This arrangement is important when the ROI is located deep inside the field of view, such in c-spine spinal cord or deep brain imaging.
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