Abstract #2756

SMART1Map: Accuracy and Influencing Imaging Parameters For Cardiac T1 Mapping.

Malek I MAKKI^1,2, Barbara EU Burkhardt³, and Emanuela Valsangiacomo³

¹MRI Research, University Children Hospital, Zurich, Switzerland, ²BioFlow, University Picardie Jules Verne, Amiens, France, ³Cardiology, University Children Hospital, Zurich, Switzerland

SMART1Map sequence was performed on 6 phantoms with different T₁ values. Sixteen schemes were prescribed: 4 heart rates (60, 80, 100, 120 bpm), 2 spatial resolutions (FOV = 30 cm and FOV = 48 cm) and 2 cardiac phases (systole and diastole). The results show that SMART1Map underestimates long T₁ (native T₁ myocardium) at any scheme. We also found an increase in error with reduced FOV (all other parameters being identical), and an influence of the cardiac phases on T₁ at the levels of native and post-contrast blood and myocardium

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