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Abstract #1690

Comparison of Multi Nuclear Coil Designs for 1H and 23Na in the Human Knee

Michael Muelly1, Ronald D. Watkins1, Caroline Jordan1, 2, Neal K. Bangerter3, Garry E. Gold1

1Radiology, Stanford University, Stanford, CA, United States; 2Bioengineering, Stanford University, Stanford, CA, United States; 3Electrical and Computer Engineering, Brigham Young University, Provo, UT, United States

Sodium MRI is useful in knee imaging to identify articular cartilage pathology. Current coil design use four ring birdcages which limit the field-of-view and signal-to-noise ratio. We report significant improvement in the signal-to-noise ratio of sodium imaging with unchanged signal-to-noise of proton imaging using an optimized two birdcage coil design.

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Keywords

ability adequate arrangement arthritis articular bioengineering bird birdcage cage cages cartilage characterize clearly coil coils computer concentric cones coverage degree depict depletion derby design designs differ differing discovery double electrical employing engineering fast field fields foundation frequency gold gradient gurney healthy human identify improve improved improvement knee knees measured minimize noise nuclear optimized overlaid paired particularly pathology previous proposed proton quality quantitative radiology reeder ring room sample scanner significantly sodium space spoiled statistically steady subject subtraction synergistic tailed terms topologies trajectory uniformity useful view volunteers young