Figure 1.

Illustration of T1 maps with good quality (top row) and with motion artefact (bottom row). (A,D) Two examples out of seven of inversion-recovery weighted (IRW) images required for T1 map reconstruction are shown, time-stamped with their corresponding inversion times (TI) and overlaid by identical manual myocardial contours for identifying motion. (B,E) ShMOLLI T1 maps. (C,F) R² quality control maps. A good quality T1 map is indicated by (A) myocardium in same position and (C) “all white” in the left ventricular myocardium indicating high T1 fitting confidence. A T1 map with motion artefact is evident by misalignment in IRW images (yellow arrow), suspicious features in T1 map (white arrow) and dark bands in R² map in the left ventricular myocardium as evidence of poor T1 fitting (red arrow).