Fig. 2

Heatmap and hierarchical clustering of video review assessment ratings. A cell shows an average rating of the video review assessment among the five reviewers with the colors, where satisfactory ratings are shown in blue and unsatisfactory ones in red. The relation of the rating and color is shown in the color bar panel. The serial numbers of the lesions are shown on the left-hand vertical axis, and the lesions that suffered hernia recurrence are marked with asterisks. The clustering tree is shown on the right-hand vertical axis