Figure 1
From: Through-slice dephasing for eddy current artifact reduction in bSSFP
(Left panel, Top) Different phase encode strategies are displayed. (Left panel, Middle) a,b,c and d) Coronal scans with corresponding PE schemes. (Left Panel, Bottom) e,f,g and h) Same as a,b,c and d respectively, but with a through-slice dephasing of 60°. Blue arrow indicates PE direction. (Right Panel) bSSFP has fully balanced (zero net area) gradients (blue) Through-slice dephasing decreases the area of the slice selection rephasing gradient (red oval), leading to a small amount of intravoxel dephasing that eliminates the effects of rapidly fluctuating gradient fields.