Figure 3From: Inter-study reproducibility of interleaved spiral phase velocity mapping of renal artery haemodynamics Velocity-time curves in the initial (blue) and repeat (red) scanning sessions in all 10 subjects, as determined by observer 1. In the repeat left acquisition in subject 4, a much reduced RR interval (895Â ms vs 1095Â ms) and ECG mis-triggering (open arrow) resulted in velocity-time curve errors and this acquisition was omitted from all further analyses. (For all graphs, x-axis: time after R-wave (ms), y-axis: mean velocity (mm/s)).Back to article page