Is %ΔSUVmax a Useful Indicator of Survival in Patients with Advanced Nonsmall-Cell Lung Cancer?

Figure 1

Pre- and posttreatment ¹⁸F-FDG PET/CT scan. Top: pretreatment ¹⁸F-FDG PET/CT axial image: staging on a patient with a left hilar adenocarcinoma (yellow arrow) with a SUVmax = 11 (red arrow) and diameter of 40 mm. Abnormal uptake present also in a subcarinal lymph node. Bottom: posttreatment ¹⁸F-FDG PET/CT axial image: the study was performed one month later, at the end of the first-line chemotherapy. Note the decrease of the ¹⁸F-FDG uptake (red arrow) in the primary lung lesion (SUVmax = 8) and also an important reduction of the lesion size (yellow arrow).