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Atelectasis
Significant potential benefit by FDG-PET in RT planning (NTCP!)
CT: problem in differentiation tumor vs. atelectasis (similar density)
PET: depicts atelectasis with slightly higher uptake than normal lung
but much lower than tumor
(Gerbaudo EJR 2007 64; 401-405)
cave: false positive uptake in post-obstructive inflammation
Histologic correlation of PET-findings with pathology are lacking
(atelectasis no problem concerning thoracic surgeons)
Pathophysiologic considerations support use of PET for RT-planning
(why should FDG fail to accumulate in tumour infiltrating atelectatic lung?)