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The presence of fat signals around the heart can affect the diagnostic quality of cardiovascular MR images. There are multiple fat-suppression pulses, such as FISS, and off-resonance water-excitation (WE) pulses, such as BORR, LIBRE, and LIBOR, that have been developed for the free-running balanced Steady-State Free-Precession (bSSFP) sequences at low-field MRI (1.5T). These fat-suppression pulses have never been thoroughly compared to each other, therefore, in this work, we implemented four different fat-suppression pulses and validated their performance on phantoms and healthy volunteers. Our results indicated LIBOR provided better fat suppression compared to BORR and LIBRE, while having fast acquisition time.
Safarkhanlo et al. (Wed,) studied this question.
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