Fig. 4.
From: Doppler ultrasound cardiac gating of intracranial flow at 7T
4D flow visualizations from one subject, gated with (a) DUS and (b) ECG. Panel (c) shows the Bland–Altman plots of the net volumes for left and right M1 MCA branches when comparing DUS and ECG gating. The difference in visualization is due to the positioning being slightly different between the two scans