Suppression of MRI Truncation Artifacts Using Total Variation Constrained Data Extrapolation
Figure 3
Spin-echo images ( samples, reconstruction matrix) of (left) a phantom
(TR/TE = 4000/8 ms, BW 243 Hz/pixel, FA ,
3 mm slice) and (right) a human brain in vivo (TR/TE = 4000/25 ms, BW 180 Hz/pixel, FA ,
2 mm slice) using zero-padding (zero), filtered zero-padding (filter), the
proposed extrapolation method with first-order (TV), and additionally
second-order derivatives (TV2). Arrows = truncation artifacts.
