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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