Paper Info
Title
Evaluation of common RF coil setups for MR imaging at ultrahigh magnetic field: a numerical study
Abstract
This study is an evaluation of the ratio of electric field to magnetic field (E/B1), specific absorption rate (SAR) and signal-to-noise ratio (SNR) generated by three different RF transceiver coil setups: surface coil, surface coil with shielding, and microstrip using a finite discrete time domain (FDTD) simulation in the presence of a head phantom. One of our main focuses in this study is to better understand coil designs that would improve patient safety at high fields by studying a coil type that may potentially minimize SAR while examining potential changes in SNR. In the presence of a human head load, the microstrip's E/B1 ratio was on average smallest while its SAR was also on average smallest of the three setups, suggesting the microstrip may be a better RF coil choice for MRI concerning patient safety and parallel excitation applications than the other two coils. In addition, the study suggests that the microstrip also has a higher SNR compared with the other two coils demonstrating the possibility that the microstrip could lead to higher quality MRI images.
Year
DOI
Venue
2011
10.1145/2093698.2093768
ISABEL
Keywords
Field
DocType
High field,RF coil,electromagnetic calculation,microstrip,numerical modeling,signal-to-noise ratio (SNR),specific absorption rate (SAR)
Computer science,Imaging phantom,Excitation,Artificial intelligence,Human head,Computer vision,Specific absorption rate,Electromagnetic shielding,Electromagnetic coil,Radiofrequency coil,Acoustics,Electrical engineering,Microstrip
Conference
Volume
Citations 
PageRank 
2011
1
0.42
References 
Authors
1
6
Name
Order
Citations
PageRank
Jonathan Lu110.76
Yong Pang272.41
Chunsheng Wang383.23
Bing Wu461.91
Daniel B Vigneron5418.17
Xiaoliang Zhang6157.89