TABLE 1

PET Agents for Risk Stratification in Sarcoma

Imaging agentBiologic assessment
11C-thymidineTumor proliferation
18F-fluoromisonidazoleTissue hypoxia
11C-verapamilTissue P-gp (multidrug resistance)
15O-waterRegional blood flow
11C-CO2Tissue pH, thymidine metabolite correction