High acceleration with a rotating radiofrequency coil array (RRFCA) in parallel magnetic resonance imaging (MRI)

Li, Mingyan, Jin, Jin, Trakic, Adnan, Liu, Feng, Weber, Ewald, Li, Yu and Crozier, Stuart (2012). High acceleration with a rotating radiofrequency coil array (RRFCA) in parallel magnetic resonance imaging (MRI). In: 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). 34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2012, San Diego, United States, (1098-1101). 28 August - 1 September 2012. doi:10.1109/EMBC.2012.6346126

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Author Li, Mingyan
Jin, Jin
Trakic, Adnan
Liu, Feng
Weber, Ewald
Li, Yu
Crozier, Stuart
Title of paper High acceleration with a rotating radiofrequency coil array (RRFCA) in parallel magnetic resonance imaging (MRI)
Conference name 34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2012
Conference location San Diego, United States
Conference dates 28 August - 1 September 2012
Proceedings title 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)   Check publisher's open access policy
Journal name IEEE Engineering in Medicine and Biology Society. Conference Proceedings   Check publisher's open access policy
Place of Publication Piscataway, NJ, United States
Publisher IEEE
Publication Year 2012
Sub-type Fully published paper
DOI 10.1109/EMBC.2012.6346126
Open Access Status
ISBN 9781424441198
9781424441204
ISSN 1557-170X
Start page 1098
End page 1101
Total pages 4
Collection year 2013
Language eng
Abstract/Summary 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.
Keyword Rf Coil
Reconstructions
Strength
Field
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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