Meeting Banner
Abstract #4378

Analytical Study on the Effects of High Dielectric Material Surrounding Spherical Sample with Coil Array for Parallel Imaging

Wei Luo1, 2, Giuseppe Carluccio3, Zhipeng Cao4, 5, Yang X. Qing1, Christopher Michael Collins, 13

1Radiology, The Pennsylvania State University, Hershey, PA, United States; 2Engineering Science & Mechanics, The Pennsylvania State University, University Park, PA, United States; 3Radiology, New York University, New York, NY, United States; 4Radiology, Pennsylvania State University, Hershey, PA, United States; 5Bioengineering, The Pennsylvania State University, University Park, PA, United States

Effects of high dielectric material (HDM), that has a size larger than the coil element of a parallel receive array, are theoretically studied at 3T. The results suggest that the gain from receive sensitivity of the array brought by the HDM overcomes the enhanced g-factor, which can promise to improve signal-to-noise ratio even when the HDM has a size which is larger than the coil element of a parallel receive array.

Abstract PDF Presentation Video

Keywords

absorption alias amplitudes analytical applying appropriate arrangement array asterisk better bioengineering bottom boundary bracket brain chosen coil coils column combined complex conditions conductivity configuration conjugate consequently consisting counts defined degraded denotes described designed desired dielectric dimensions displacement dissipated double efficiency eight electric electrical electromagnetic element elements encapsulated engineering enhanced evaluate even expansion expected explore fashion field fields function functions funding gains general generated give greater harmonic human improve improvement improvements indicated indicates individually inside inverse investigated larger local located lossy maps material matrix maximized mechanics model much near noise objects often outside pads parallel park performance pixels power powers previous processing promising properties radiology receive reconstruction reduction reflected reported respect respectively sample sampling science sense sensitivity series shell situation slightly smaller solution solutions solved space sphere spherical sqrt still strength strong studies subject subjects surfaces surrounding tangent theory thick tissue transmit transpose transposed transverse understood unknown vector wave yang