Paper Info
Title
High Acceleration With A Rotating Radiofrequency Coil Array (Rrfca) In Parallel Magnetic Resonance Imaging (Mri)
Abstract
This study explores the performance of a novel hybrid technology, in which the recently introduced rotating RF coil (RRFC) was combined with the principles of Parallel Imaging (PI) to improve the quality and speed of magnetic resonance (MR) images. To evaluate the system, a low-density naturally-decoupled 4-channel rotating radiofrequency coil array (RRFCA) was modelled and investigated. The traditional SENSitivity Encoding (SENSE) reconstruction method and the means of calculating the geometry factor distribution (g map) were adapted to take into account the transient sensitivity encoding. It was found from simulations at 3T that, continuous rotating motion considerably enhanced the coil sensitivity encoding capability, making higher reduction factors in scan time possible. The sensitivity encoding capability can be further improved by choosing an optimal speed of array rotation. Compared to traditional phased-array coils (PACs) with twice as many coil elements, the RRFCA demonstrated clear advantages in terms of quality of reconstruction and superior noise behaviour in all the cases investigated in this initial study.
Year
DOI
Venue
2012
10.1109/EMBC.2012.6346126
2012 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC)
Keywords
Field
DocType
rf coil,image reconstruction,field
Iterative reconstruction,Parallel magnetic resonance imaging,Computer science,Parallel imaging,Electronic engineering,Electromagnetic coil,Acceleration,Radiofrequency coil,Encoding (memory),Magnetic resonance imaging
Conference
Volume
ISSN
Citations 
2012
1557-170X
0
PageRank 
References 
Authors
0.34
0
7
Name
Order
Citations
PageRank
Mingyan Li100.34
Jin Jin200.34
Adnan Trakic300.34
Feng Liu400.34
Ewald Weber500.34
Yu Li600.34
Stuart Crozier713014.02