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Abstract #3620

Imaging of cardiac skeleton without contrast agents

Yi Li1, Jiri Mares1, and Timo Liimatainen1
1Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland

We applied Relaxation along Fictitious Field with rank n (RAFFn) to clinical 3T scanner to study RAFFn contrast between cardiac skeleton and myocardium with multiple RAFFn refocusing times i.e. pulse durations in ex vivo porcine hearts. We found the relationship between relaxation times and RAFFn pulse duration in both cardiac skeleton and myocardium. Furthermore, the optimal pulse duration to gain maximum contrast was close to 2.5 ms. RAFF2 and T2 maps demonstrated higher contrast between cardiac skeleton and myocardium tissues when compared to T1 and T.

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