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Abstract #4915

Image Quality Improvements for Balanced TFE at 3.0T Using a Clinical Parallel RF Transmission MR System

Trevor Andrews1,2, Melanie Kotys1, Marc Kouwenhoven3, Jay Gonyea2, Takamaru Ashikaga2, George Gentchos, 2,4

1Philips Healthcare, Cleveland, OH, United States; 2College of Medicine, University of Vermont, Burlington, VT, United States; 3Philips Healthcare, Best, Netherlands; 4Radiology, Fletcher Allen Health Care, Burlington, VT, United States

Cardiac MR imaging with steady state free precession sequences suffer from at least two image quality problems at 3T: excessive banding artifacts and suboptimal contrast due to inadequate flip angle. In this study RF shimming was utilized to address these issues. Results from 8 subjects demonstrated improved blood-to-septum contrast and radiologist-assessed image quality. For one choice of parameters banding artifacts were effectively eliminated in all subjects while maintaining good overall image quality.