Meeting Banner
Abstract #0151

Bloch Simulation of Human MR Imaging at 14T

MAGNA25Zhipeng Cao1, Giuseppe Carluccio2, Joshua Park3, Sukhoon Oh4, Zhang-Hee Cho3, Christopher M. Collins4

1Bioengineering, Penn State University, Hershey, PA, United States; 2Electrical Engineering, The University of Illinois at Chicago, Chicago, IL, United States; 3Neuroscience Research Institute, Gachon University of Medicine and Science, Incheon, Korea, Republic of; 4Radiology, Penn State University, Hershey, PA, United States

The feasibility of human head imaging at 14T is explored using a Bloch-based MRI simulator that considers realistic B0, B1, and E1 distributions, including multiple transmit and receive channels. Field inhomogeneity, image SNR and SAR in the human head with and without RF shimming are examined at 3T, 7T, and 14T. The results showed a dramatic increase of image SNR from 3T to 14T, with a more subtle SAR increase, especially from 7T to 14T

Abstract PDF Presentation Video

Keywords

able achievable achieved acquiring adaptive addition adjustment advanced although amount appropriate array artifacts assuming available become benefit bioengineering brain bright calculating calculator challenges channel channels circularly coil coils college combination combinations combined commercially components definition density dependent derived described designed details determined deviation digital distribution distributions early eight electrical engineering especially establish even examinations except expected fair field fields funding future generated give good gradient great greater head homogeneity homogeneous house human identical important importantly improves inclusion increasing inhomogeneity input installation institute intensity inversely investigation known magnitude maps maximize mitigation model noise nonetheless numerical optimal overall overcome particularly peak phantom phenomena pixel planned polarized potential preparation previously processed promise properties proportional protocol proton published quadrature radiology rapidly realistic receive recorded relatively represent resolution respectively scenarios science section shimmed shimming shorter significantly simulate simulated simulation simulations simulator slice software south strength strengths studies system table transmission transmit upper utilized voltage volume whole