Fig 3.

pO₂ maps of rat tumours obtained using ¹⁹F nuclear magnetic resonance using hexafluorobenzene as the reporter molecule. The H tumour (a well-differentiated and slow-growing tumour) was significantly better oxygenated than the AT1 tumour (an anaplastic and faster-growing subline). In response to oxygen inhalation, pO₂ increased significantly in both the H and the AT1 tumours. Adapted with permission from Neoplasma press, Zhao et al., 2003[14].