Fig. 1From: The effect of an adenosine A2A agonist on intra-tumoral concentrations of temozolomide in patients with recurrent glioblastomaCatheter placement imaging. Brain CT and MRI superimposed delineating catheter placement and tumor margins. Patient 1 had one catheter tip placed in non-contrast enhancing area and the second in contrast enhancing tissue (a). Patient 2 had one catheter placed in non-contrast enhancing tissue (b). Superimposed images denote contrast enhancement in green. The white triangle indicates placement of catheter tipsBack to article page