Key result
RT-TRASSI reduced the occurrence of image artifacts in in vivo myocardial T1 mapping to 6%, compared to >40% with prevailing sequences (MOLLI, ShMOLLI, and SASHA).
Why the study?
Does the RT-TRASSI sequence improve T1 mapping accuracy and reduce artifacts compared to standard sequences in the presence of arrhythmias?
Population
Programmable motion phantom with simulated arrhythmias and in vivo subjects
Comparison
RT-TRASSI T1 mapping sequence vs MOLLI, ShMOLLI, and SASHA T1 mapping sequences
Design
Preclinical
Authors
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May improve T1 mapping in arrhythmias; leaves open human validation before clinical use.
Does the RT-TRASSI sequence improve T1 mapping accuracy and reduce artifacts compared to standard sequences in the presence of arrhythmias?
Absolute Event Rate: 6% vs 40%
The RT-TRASSI sequence significantly reduces motion artifacts in myocardial T1 mapping compared to standard techniques, particularly in the setting of arrhythmias.
Gensler et al. (2018) studied Cardiac arrhythmia. RT-TRASSI (real-time Triggered RAdial Single-Shot Inversion recovery) vs. MOLLI, ShMOLLI, and SASHA was evaluated on Occurrence of image artifacts in T1 maps. RT-TRASSI reduced the occurrence of image artifacts in in vivo myocardial T1 mapping to 6%, compared to >40% with prevailing sequences (MOLLI, ShMOLLI, and SASHA).
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