Figure 2From: CMR validation of fractional changes in annulo-apical angles and TAPSE for rapid assessment of right ventricular systolic functionScatter graph -fractional θ angle change vs. RVEF, with line of best fit. Patient subgroups are colour coded. The dotted vertical line represents the ROC cut-off of RVEF<50%, and the dashed horizontal line represents the corresponding cut-off value for fractional θ angle change of ≥ -25.5%.Back to article page