Abstract #4216
Averaged-BOSS: feasibility study and preliminary results
Zahra Shams 1 and Abbas N Moghaddam 1,2
1
BME, Tehran Polytechnic, Tehran, Tehran,
Iran,
2
School
of Cognitive Sciences, Institute for Studies in
Theoretical Physics and Mathematics, Tehran, Iran
In this work, we presented a new method for fMRI, termed
Averaged BOSS (A-BOSS), in which the idea of phase
transition is employed without the undesirable limited
spatial coverage. The implementation of the proposed
method involved compacting SSFP profile with a profile
period at the order of pixel size, resulted in averaging
the effect of frequency shift on the magnetization
everywhere with no need for careful shimming. The
analysis of experimental results highlighted the area of
activity that was in accordance with BOLD activation
map. In conclusion, A-BOSS overcomes BOSS limitations,
creating considerably high signal level in comparison
with BOLD.
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