Fig. 2.
(A) The first 20 mother/main clusters formed at hierarchical level 0 after gradual increase of intra-cluster homogeneity. Among these clusters, there were 4 mother clusters (>50 cm3), which are marked with arrows, and further subdivided as depicted in Fig. 3, Fig. 4, Fig. 5, Fig. 6. In addition to 20 mother/main clusters, (B) a total of 123 tiny clusters (<1 cm3) were formed at this hierarchical level. (C) Red-colored mask depicts the 166.6 cm3 (9.2%) of MNI-152 brain mask which was not covered by infarct lesions in our cohort (793 infarct lesions in 458 patients). (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)