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Abstract #3938

Respiratory Triggered Retrospectively Cardiac Gated Cine Steady-State Free Precession (SSFP) Imaging

Amol Pednekar1, Ramkumar Krishnamurthy2, Claudio Arena3, Raja Muthupillai3, Benjamin Cheong3, Debra Dees3

1MR Clinical Science, Philips HealthCare, Houston, TX, United States; 2BioEngineering, Rice University, Houston, TX, United States; 3Radiology, St. Luke's Episcopal Hospital, Houston, TX, United States

We propose a free breathing respiratory triggered multi-shot cardiac cine SSFP technique with a drive to steady state at each expiration phase and retrospective cardiac gating. Our initial evaluation in normal subjects shows that slice-by-slice LV volumes estimated using this free breathing technique are comparable to the LV volumes obtained using conventional, breath-hold cardiac cine SSFP techniques. The combination of respiratory triggering, multi-shot acquisition, and retrospective cardiac gating may make this approach particularly useful in patients with severely compromised breath holding capability and moderate arrhythmia. Further allowing high spatial and/or temporal resolution cardiac cine imaging.