Perfusion computed tomography in renal cell carcinoma

Figure 6 Perfusion parameters showing progressive disease with anti-angiogenic therapy. Comparison of perfusion parameters in left metastatic renal cell carcinoma (A) after start of anti-angiogenic therapy at 6 mo interval shows progressive disease as permeability (PMB) at baseline scan (B) was 4.00 mL/10 mL per minute which increased to 26.67 mL/100 mL per minute in follow-up scan (C). There was also increase in size and extent of lesions during this interval (not shown). MIP: Maximum peak intensity; TTP: Time to peak; BF: Blood flow; BV: Blood volume; MTT: Mean transit time; CT: Computed tomography.