Fig. 2From: Volume of interest delineation techniques for 18F-FDG PET-CT scans during neoadjuvant extremity soft tissue sarcoma treatment in adults: a feasibility studyDifferences in tumor delineation between the four VOI delineation techniques. An example illustrating the differences in tumor delineation between the four VOI delineation techniques, for patient 4 scan 2. a VOIauto. b VOIman. c VOIgrad. d VOIgrad+Back to article page