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New head gradient coil design and construction techniques
Author(s) -
Handler William B.,
Harris Chad T.,
Scholl Timothy J.,
Parker Dennis L.,
Goodrich K. Craig,
Dalrymple Brian,
Sass Frank,
Chronik Blaine A.
Publication year - 2014
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/jmri.24254
Subject(s) - electromagnetic coil , head (geology) , computer science , acoustics , mechanical engineering , materials science , nuclear magnetic resonance , physics , engineering , geology , electrical engineering , geomorphology
Purpose To design and build a head insert gradient coil to use in conjunction with body gradients for superior imaging. Materials and Methods The use of the boundary element method to solve for a gradient coil wire pattern on an arbitrary surface allowed us to incorporate engineering changes into the electromagnetic design of a gradient coil directly. Improved wire pattern design was combined with robust manufacturing techniques and novel cooling methods. Results The finished coil had an efficiency of 0.15 mT/m/A in all three axes and allowed the imaging region to extend across the entire head and upper part of the neck. Conclusion The ability to adapt an electromagnetic design to necessary changes from an engineering perspective leads to superior coil performance. J. Magn. Reson. Imaging 2014;39:1088–1095 . © 2013 Wiley Periodicals, Inc .