Abstract #2643
Comparison of MOLLI and AIR cardiac T1 mapping pulse sequences in a clinical population of cardiomyopathies
Sean Robison 1 , Daniel Kim 2 , Kyungpyo Hong 2 , Emma Hornsey 1 , Piyush Srivastava 3,4 , Gerard Smith 1 , Leighton Kearney 3 , and Ruth P Lim 1,4
1
Department of Radiology, Austin Health,
Melbourne, Victoria, Australia,
2
UCAIR,
Department of Radiology, University of Utah, Salt Lake
City, Utah, United States,
3
Department of
Cardiology, Austin Health, Melbourne, Victoria,
Australia,
4
The
University of Melbourne, Melbourne, Victoria, Australia
We compare the performance of two cardiac T1 mapping
pulse sequences, Modified Look-Locker inversion recovery
(MOLLI) and arrhythmia insensitive rapid (AIR), in
patients with cardiomyopathies. In ten patients referred
for varying indications, we found significantly
different cardiac T1 and partition coefficient values
between MOLLI and AIR. These findings are consistent
with previous studies which reported that different
cardiac T1 mapping pulse sequences yield significantly
different T1 and extracellular volume fraction
measurements in normal hearts. Awareness of these
differences is important for clinical application and
interpretation.
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