Fig. 4From: Correlation and agreement between superb micro-vascular imaging and contrast-enhanced ultrasound for assessing radiofrequency ablation treatment of thyroid nodules: a preliminary studyIntra-observer reliability for SMI mode. a Boxplot of repeated measurement values by reader A for the first examination and the second examination. b Scatter plot of repeated measurement values. c Bland–Altmann plot with the mean of repeated measurement values on the x-axes, and the difference of the measurements and their mean on the y-axisBack to article page