Fig. 3

Clustering of the vascular involvement in the 65 patients with Takayasu arteritis pulmonary artery involvement (TAK-PAI). A The dendrogram on the bottom shows the clustering of the 26 vascular territories assessed in the cohort of 65 patients with TAK-PAI. The color map at the center indicates involvement (red) or noninvolvement (yellow) of the 26 vascular territories in each of the 65 patients. X-axis denotes different vessels and Y-axis denotes different patients. In the heatmap, negative four to four is the degree of vascular involvement and is normalized. B Prevalence of pulmonary artery involvement by cluster analysis. Heatmaps of the arteries indicated the percent of patients in each cluster with pulmonary artery involvement. A darker red indicates that a higher percentage of patients in the cluster have involvement of the pulmonary artery