Fig. 4From: Validating the accuracy of real-time phase-contrast MRI and quantifying the effects of free breathing on cerebrospinal fluid dynamicsCSF average cardiac cycle flow curves (averaged Qt) of CINE-PC (in blue) and reconstructed Qt of RT-PC (in red) at the aqueduct for 36 participants. Each plot is labeled with the participant’s serial number and age. Red-labeled plots indicate a cardiac period difference of more than 10% between the two sequences. For comparison, all plots have consistent axis ranges: y from − 30 to 33 ml/min and x from 0 to 1.4 sBack to article page