Abstract
Background The dark-rim artefact (DRA) is well known in 2D firstpass perfusion (FPP). The in-plane features of DRA are understood, but DRA has not been examined along the second phase-encoding (partition) direction for 3D FPP. The Gibbs contribution to DRAs in 2D FPP is minimised by finer resolution, but low through-plane resolutions of 3D FPP imply risk of partition axis DRAs. We investigated these new partition DRAs (PDRAs”) and partial volume effects due to coarse resolution of this direction.
Highlights
The dark-rim artefact (DRA) is well known in 2D firstpass perfusion (FPP)
The Gibbs contribution to DRAs in 2D FPP is minimised by finer resolution, but low through-plane resolutions of 3D FPP imply risk of partition axis DRAs
We investigated these new partition DRAs ("PDRAs”) and partial volume effects due to coarse resolution of this direction
Summary
The dark-rim artefact (DRA) is well known in 2D firstpass perfusion (FPP). The in-plane features of DRA are understood, but DRA has not been examined along the second phase-encoding (partition) direction for 3D FPP. The Gibbs contribution to DRAs in 2D FPP is minimised by finer resolution, but low through-plane resolutions of 3D FPP imply risk of partition axis DRAs. The Gibbs contribution to DRAs in 2D FPP is minimised by finer resolution, but low through-plane resolutions of 3D FPP imply risk of partition axis DRAs We investigated these new partition DRAs ("PDRAs”) and partial volume effects due to coarse resolution of this direction
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