Baseline offset errors on phase-contrast velocity images
can be corrected using stationary tissue, for example sub-
tracting fitted corrections from the image (1). Although
corrections are often curved over the FOV, 1st order
(linear) fitting is typical. This may partly be due to low
SNR of static tissue making hig
her-order fitting unreli-
able (2). Aim: To evaluate a new method acquiring addi-
tional high SNR velocity ima
ges specifically to improve
offset correction.