Segmentation of Dynamic Total-Body [¹⁸F]-FDG PET Images Using Unsupervised Clustering

Figure 6

(a) Front and (b) side view of the clusters from the middle of a dynamic 3D human total-body PET image. The visualised slice in both subfigures is the slice number 200 out of 400. Notably, in the original PET image (first panel), the voxel activities are sums over time and brighter colour indicate higher activity, whereas in the cluster images (the remaining three right-most panels) different colours indicate different clusters in no particular order.

(a)

(b)