Comparative study of symmetric and asymmetric cylindrical MRI gradient Y-coils in terms of induced eddy currents

Trakic, A., Liu, F. and Crozier, S. (2005). Comparative study of symmetric and asymmetric cylindrical MRI gradient Y-coils in terms of induced eddy currents. In: Y.T. Zhang, 27th Annual IEEE Engineering in Medicine and Biology Society. 27th Annual IEEE Engineering in Medicine and Biology Society, ShangHai, China, (445-448). 1-4 September 2005.

Author Trakic, A.
Liu, F.
Crozier, S.
Title of paper Comparative study of symmetric and asymmetric cylindrical MRI gradient Y-coils in terms of induced eddy currents
Conference name 27th Annual IEEE Engineering in Medicine and Biology Society
Conference location ShangHai, China
Conference dates 1-4 September 2005
Proceedings title 27th Annual IEEE Engineering in Medicine and Biology Society
Place of Publication USA
Publisher IEEE
Publication Year 2005
Sub-type Fully published paper
ISBN 0780387406
9780780387409
ISSN 1094-687X
Editor Y.T. Zhang
Start page 445
End page 448
Total pages 4
Collection year 2005
Abstract/Summary We have recently introduced the concept of whole-body asymmetric MRI systems [1]. In this theoretical study, we investigate the PNS characteristics of whole-body asymmetric gradient systems as compared to conventional symmetric systems. Recent experimental evidence [2] supports the hypothesis of transverse gradients being the largest contributor of PNS due to induced electric currents. Asymmetric head gradient coils have demonstrated benefits in the past [3]. The numerical results are based on an anatomically-accurate 2mm-human voxel-phantom NORMAN [4]. The results of this study can facilitate the optimization of whole-body asymmetric gradients in terms of patient comfort/safety (less PNS), while prospering the use of asymmetric MRI systems for in-vivo medical interventions.
Subjects E1
291500 Biomedical Engineering
729901 Technological and organisational innovation
Q-Index Code E1
Institutional Status UQ
Additional Notes Article number 1616121

 
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Created: Thu, 23 Aug 2007, 21:11:17 EST