Abstract #2620

Comparison Among Radial, Spiral-Out & Spiral-In/Out Bssfp in Real Time Cardiac Imaging

Xue Feng¹, Michael Salerno², Christopher M. Kramer^2,3, Craig H. Meyer^3,4

¹University of Virginia, Charlottesville, VA, United States; ²Medicine, University of Virginia, Charlottesville, VA, United States; ³Radiology, University of Virginia, Charlottesville, VA, United States; ⁴Biomedical Engineering, University of Virginia, Charlottesville, VA, United States

Cartesian and radial balanced SSFP (bSSFP) sequences are widely used clinically for real time cardiac imaging. Spiral bSSFP sequences have been used in several research studies, but clinical adoption has been slow. The goal of this study is to compare the performance of radial and spiral bSSFP in real time cardiac imaging. In addition, a new spiral-in/out bSSFP is developed by putting a symmetrical spiral-in gradient in front of traditional spiral-out gradient to explore the TE = TR/2 mechanism and realize 0th and 1st gradient moment ing via symmetry to save time. This sequence is also compared.