Abstract #0819
Reduced specific absorption rate (SAR) Magnetization Transfer imaging with Low Density MT pulse technique for 7 Tesla
Se-Hong Oh 1 , Wanyong Shin 1 , and Mark J Lowe 1
1
Imaging Institute, Cleveland Clinic
Foundation, Cleveland, OH, United States
Due to the much higher specific absorption rate (SAR) of
tissue at ultra-high field (UHF), the acquisition time
of MT imaging at UHF is much longer than at lower filed
strengths. Thus, MT imaging at UHF MRI has not,
heretofore been suitable for clinical scanning. In this
work, we described a new MT acquisition technique within
a clinically reasonable time (<6 min) which uses a
sparsely applied MT pulse. With new proposed MT
acquisition scheme, the scan time is reduced
considerably while maintaining similar MTR when compared
with the case of conventional MT.
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