Positron emission tomography to assess hypoxia and perfusion in lung cancer

Figure 3 Timeline for development and evaluation of hypoxia specific tracers that have been evaluated by preclinical or clinical positron emission tomography. Development and in-vitro analysis (blank), preclinical positron emission tomography (PET) evaluation (grey), and clinical PET evaluation (black). The number of published clinical studies in oncology is indicated (excluding brain studies). See Table 2 for full names.