(A) Sample clustering results using Kmeans, for Endoflip using a combination of rest features, namely p40, CSA40, p40/CSA40 & p50, CSA50, and p50/CSA50. (B) Sample clustering results using Kmeans, for the textural features described in Figure 5A. Note, for visualization purposes the actual multi-dimension space has been projected to only three-dimensions (x-y and z-axes).