Abstract #3660
Spectrally-Presaturated Modulation (SPM): an Efficient Fat Suppression Technique for STEAM-based Cardiac Imaging Sequences
Ahmed Fahmy 1 , El-Sayed H. Ibrahim 2 , and Nael Osman 3
1
Cairo University, Cairo, Egypt,
2
University
of Michigan, Ann Arbor, MI, United States,
3
Johns
Hopkins University, Baltimore, MD, United States
Stimulated-echo acquisition mode (STEAM) is a key pulse
sequence in MRI in general, and in cardiac imaging in
particular, as it allows for marking the modulated
magnetization and saving it from rapid T2 relaxation.
Speeding up the temporal-resolution of STEAM-based
sequences is desirable, although it is compromised in
cases when fat-suppression is applied. In this work, we
present an efficient fat-suppression technique
(Spectrally-Presaturated Modulation (SPM)) for
STEAM-based sequences without affecting the
temporal-resolution, scan-time, or SAR-level compared to
other fat suppression techniques (e.g. spectral-spatial
selective-pulses (SSSP) and chemical-shift selective
(CHESS)), which could result in accurate parameter
measurement and improved image analysis.
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