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Fig. 1 | EJNMMI Research

Fig. 1

From: Voxel-based identification of local recurrence sub-regions from pre-treatment PET/CT for locally advanced head and neck cancers

Fig. 1

Workflow of the study. (i) Intra-individual registration of post-treatment data to the pre-treatment space allows the definition of both the region of recurrence volume (GTVfailure) and the responder volume (GTVresponder). This step is followed by (ii) a regional analysis allowing to characterize the recurrence and (iii) a voxel-wise analysis (feature extraction and classification) which yields a probability map of recurrence

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