Fig. 9.
Result of the non-rigid registration of the pre-operative image on the intra-operative image. For each patient: (top left) pre-operative image; (top right) intra-operative image; (bottom left) result of the registration: deformation of the pre-operative image on the intra-operative image; (bottom right) gradient of the intra-operative image superimposed on the result image. The enhanced region on patient’s 4 image indicates that the resection is incomplete. The white dotted line shows where the outline of the tumour is predicted to be after deformation (top right). It shows a reasonable matching with the tumor margin in the deformed image (bottom right).