Meeting Banner
Abstract #0325

Evidence Across CMR Sites and Systems of Phase-Contrast Background Velocity Offsets Requiring Correction for Accurate Regurgitant or Shunt Flow

Peter D. Gatehouse1, Marijn P. Rolf2, Martin J. Graves3, Mark B. Hofman2, John Totman4, Beat Werner5, Rebecca Quest6, Yingmin Liu7, Jochen von Spiczak8, Matthias Dieringer9, Juerg Schwitter10, Jeanette Schulz-Menger9, David N. Firmin1, Philip J. Kilner1

1Royal Brompton Hospital, London, UK; 2VU Medical Center, Amsterdam, Netherlands; 3Addenbrooke's Hospital, Cambridge, UK; 4King's College, London, UK; 5Kinderspital, Zurich, Switzerland; 6Imperial College, London, UK; 7University of Auckland, New Zealand; 8University and ETH, Zurich, Switzerland; 9Charit Universittsmedizin, Berlin, Germany; 10University Hospital, Zurich, Switzerland

Velocity offset errors are often reported to damage reliability of cardiac shunt and regurgitation by phase-contrast, hence this inter-site inter-scanner measurement of velocity errors to find out how widespread the problem might be.