3D Spiral LGE for reduced enhancement artifacts in PV imaging of pre- and post-ablation scar
نویسندگان
چکیده
Figure 1. Demonstrations of the edge artifact observed in LGE (yellow arrow). .A-B are Bloch simulations of the Cartesian (A) and spiral LGE sequences for circles with T1 values of 300ms and 200ms (top circle and bottom circle respectively). C-D show phantom images acquired with the Cartesian LGE sequence, where the edge artifact can be observed with greater intensity for increasing acquisition window duration. (25ms and 150ms respectively). E shows the spiral LGE sequence with a 150ms acquisition window. F-G shows the effects of incomplete fat suppression using a SPIR pre-pulse. A phantom surrounded by a thin layer of fat was simulated (F). G shows the simulated artifact. It can be observed that the effect is similar to the edge artifact observed in A. g f a 3D Spiral LGE for reduced enhancement artifacts in PV imaging of preand post-ablation scar.
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