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Abstract #0784

Cardiac MR fingerprinting with a short acquisition window in healthy volunteers and 62 consecutive patients referred for clinical CMR

Simone Rumac1, Anna Giulia Pavon2, Jesse Hamilton3, David Rodrigues1, Nicole Seiberlich3, Juerg Schwitter2, and Ruud B. van Heeswijk1
1Department of Radiology, Lausanne University Hospital (CHUV), Lausanne, Switzerland, 2Cardiology Service, Lausanne University Hospital (CHUV), Lausanne, Switzerland, 3Department of Radiology, University of Michigan, Ann Arbor, MI, United States

Cardiac magnetic resonance fingerprinting (cMRF) can be used to simultaneously acquire myocardial T1 and T2 maps in a single breath-hold. However, the common 250 ms acquisition window of cMRF might leave it vulnerable to motion artefacts. The goal of this study was therefore to compare the performance of cMRF with a short acquisition window (150ms) and low-rank reconstruction to that of routine cardiac parametric mapping techniques. In 7 healthy volunteers, and 62 cardiac patients, cMRF resulted in similar native relaxation times, but slightly different post-contrast T1 and ECV values compared to routine techniques.

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