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Knee, Other Extremities, or Primate Head High-Field RF Imaging Coils Doty rf Litz and Litzcage Modules
Knee imaging at high fields with conventional coils has often been problematic because of the enormous difference in loading between a small and a large patient. The unique tuning/balancing methods utilized in all Doty coils make tune-up predictable, simple, and quick.
3 T Knee Image - Sagittal 3T Knee Image - Axial Images are from a 3 T Doty linear Litz coil. Images courtesy of Dr. Qing X. Yang, Hershey Medical Center, Penn State University.
Our linear Litz coils are recommended for double-resonance applications, and their exceptional sensitivity and homogeneity are demonstrated in the images shown above. Typical efficiency of a double-resonance Litz coil is illustrated in the table below.
Our passive CP "Litzcages" (no integral preamps or switches) have consistently demonstrated dramatically superior B1 homogeneity and improved S/N in independent comparisons to commercial birdcages and TEM resonators at frequencies from 125 MHz to 750 MHz. Moreover, our knee coils include window slots to facilitate accurate positioning and monitoring. The S/N of these coils is superior to that of other semi-open coils of similar FOV, and the B1 homogeneity can only be described as extraordinary. For additional information about the Doty Litz coil design: F. David Doty, George Entzminger Jr, and Cory D. Hauck,"Error-Tolerant RF Litz Coils for NMR/MRI", J. Magn. Reson.,1999, 140:17-31. Download Knee RF Litz Coil Poster
RF Litz coil module Please contact sales with questions or quote requests. |
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