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. 2013 Dec;23(4):279–290. doi: 10.1016/j.zemedi.2013.07.006

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© 2013 Elsevier GmbH.

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(a) DSC values for the phantom CT-CT deformable registration; here, two deformations are included. It can be seen that on average the featurelet_NC method and the iPlan method had a similar performance. The featurelet_MI method is not improving the DSC substantially. (b) DSC values for the phantom CT-CBCT deformable registration. Here, three deformations are included. For both bladder and rectum, the featurelet_NC and iPlan methods are reducing the DSC value, and almost not changing it for the prostate. On the other hand, for the three structures the featurelet_MI method is improving the DSC. RR corresponds to the rigid registration starting point, featurelet_NC to the featurelet deformable registration method using normalized correlation metric, featurelet_MI to the featurelet deformable registration method using mutual information metric and iPlan corresponds to the deformable registration performed using the iPlan -adaptive application.