Localized eddy current compensation using quantitative field mapping

Journal of Magnetic Resonance
M TerpstraR Gruetter

Abstract

Eddy current effects induced by switched gradients in proximal conducting structures are traditionally reduced by applying preemphasis currents whose amplitudes and decay characteristics must be set to offset the eddy current fields. We present an expeditious, localized, and quantitative method for mapping and adjusting the parameters for eddy current compensation. Mapping is based on analysis of projections as used in the fast automatic shimming technique by mapping along projections (FASTMAP). Adjustment methods are demonstrated in high-field horizontal bore systems. The proposed localized eddy current mapping technique may also be used for localized measurements in situations where asymmetric conducting structures may cause nonlinear eddy current fields, such as in interventional MRI and open magnet designs.

References

Nov 4, 1998·Journal of Magnetic Resonance·R GruetterK Uğurbil

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Citations

Dec 17, 2009·Magma·Nils KicklerRolf Gruetter
Mar 1, 2005·Applied Magnetic Resonance·I Tkáč, R Gruetter
May 8, 2015·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Ariane FillmerAnke Henning
Feb 12, 2014·Magnetic Resonance Imaging·Narae ChoiDong-Hyun Kim
Sep 11, 2001·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·I TkácR Gruetter
Jul 19, 2011·Journal of Magnetic Resonance·William M SpeesJoel R Garbow
Aug 16, 2008·Journal of Magnetic Resonance·Vladimír MlynárikRolf Gruetter
May 20, 2008·Magnetic Resonance Imaging·Hongxia LeiRolf Gruetter
Aug 1, 2009·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Cristina CudalbuRolf Gruetter
Apr 14, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Signe J VannesjoKlaas P Pruessmann
Jul 27, 2010·Concepts in Magnetic Resonance. Part B, Magnetic Resonance Engineering·Christoph JuchemRobin A de Graaf
May 16, 2013·IEEE Transactions on Medical Imaging·Kieran O'BrienGunnar Krueger
Mar 15, 2011·Magnetic Resonance Imaging·Saikat SenguptaMalcolm J Avison
Jan 10, 2012·NeuroImage·João M N DuarteRolf Gruetter
Sep 28, 2002·Medical Physics·Dick J DrostUNKNOWN AAPM MR Task Group #9
Apr 25, 2000·Journal of Cerebral Blood Flow and Metabolism : Official Journal of the International Society of Cerebral Blood Flow and Metabolism·J PfeufferR Gruetter
Jan 5, 2002·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Vincent J Schmithorst, Bernard J Dardzinski
May 20, 1999·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·I TkácR Gruetter
Aug 10, 2006·Journal of Magnetic Resonance Imaging : JMRI·Denis Le BihanFranck Lethimonnier
Sep 23, 2006·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Vladimír MlynárikRolf Gruetter
May 13, 2010·Physical Chemistry Chemical Physics : PCCP·Cristina CudalbuRolf Gruetter
Mar 19, 2019·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Michael SchwerterN Jon Shah
Feb 6, 2018·Journal of Cerebral Blood Flow and Metabolism : Official Journal of the International Society of Cerebral Blood Flow and Metabolism·Hongxia LeiPatrick Aebischer
Apr 28, 2020·NMR in Biomedicine·Yasmin Geiger, Assaf Tal
Oct 12, 2000·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·N G PapadakisC L Huang
Feb 19, 2000·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·R Gruetter, I Tkác
Jul 25, 2017·Journal of Magnetic Resonance Imaging : JMRI·Georg OeltzschnerRichard A E Edden
Nov 18, 2020·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Michael SchwerterN Jon Shah
Jan 10, 2021·Journal of Neurochemistry·Veronika RačkayováCristina Cudalbu

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