Fig. 5
From: Multidimensional fetal flow imaging with cardiovascular magnetic resonance: a feasibility study
Motion curves derived using template matching translational registration for pregnant participants P1 and P2 respectively. Column a: time average of the real-time series, showing the ROI used for motion tracking (white dashed rectangles). Column b: tracked motion of the ROI (blue: horizontal, red: vertical), with the green bar identifying periods of quiescence and the red bar periods of gross-fetal motion (identified based on mutual information – see Theory)