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Practical design of a high‐strength breast gradient coil
Author(s) -
Maier Cynthia F.,
Nikolov Hristo N.,
Chu Kenneth C.,
Chronik Elaine A.,
Rutt Brian K.
Publication year - 1998
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.1910390309
Subject(s) - imaging phantom , electromagnetic coil , materials science , nuclear magnetic resonance , biomedical engineering , fabrication , optics , physics , medicine , quantum mechanics , alternative medicine , pathology
A high‐strength three‐axis local gradient coil set was constructed for MRI of the breast. Gradient fields with good uniformity (<10% deviation from the desired gradient) over most of the volume required for breast imaging were generated with efficiencies of up to 3.3 mT/m/A. The coils will allow diffusion breast imaging in clinically acceptable examination times. The electrical design, water cooling system, and fabrication techniques are described. Preliminary tests of the coil included images of a grid phantom and diffusion measurements in a short‐T 2 agarose gel phantom.