Figure 9
From: Advances in single-scan time-encoding magnetic resonance imaging
Modified time-encoding pulse sequence that leads to a uniform T2*-weighting across the entire object. The rectangular “hard” π pulse ensures that the effects of field inhomogeneities are the same for all spin packets. Since this π pulse is not applied immediately before the slice-selection pulse πss, T2inh effects will be partially refocused. The shift gradient pulse reverses the order in which the echoes appear, so that TE is identical for all echoes. Spin-packet re-phasing unwinds the phases accumulated during the excitation of the spin packets. Gss, Gro, and Gte stand for slice-selection, readout, and time-encoding gradients. The crusher gradients remove artefacts from the image.
