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Torque free asymmetric gradient coils for echo planar imaging
Author(s) -
Abduljalil A. M.,
Aletras A. H.,
Robitaille PierreMarie
Publication year - 1994
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.1910310415
Subject(s) - electromagnetic coil , coronal plane , torque , planar , nuclear magnetic resonance , sagittal plane , acoustics , materials science , physics , computer science , medicine , anatomy , computer graphics (images) , quantum mechanics , thermodynamics
In this work, we present a new torque‐free asymmetric gradient coil that is capable of generating high quality axial, sagittal, and coronal echo planar images of the human head. This gradient set was calculated using the Biot‐Savart law and least square approaches to optimize the field in the region of interest and to minimize net torques. The resulting structure has excellent shoulder‐to‐coil clearance and, as such, has the advantage of providing good patient access to the linear portion of the gradient while minimizing patient discomfort from claustrophobia.