Table 4 Response subgroups 1, 2, 3 and 4: criteria for subgrouping of individual lesions based on change in size and change in enhancement

From: Changes in tumour vessel density upon treatment with anti-angiogenic agents: relationship with response and resistance to therapy

 

 Response criteria for individual lesions

Response subgroup 1

30% reduction in size

 

50% reduction in nE

Response subgroup 2

<30% reduction in size, and <20% increase in size

 

50% reduction in nE

Response subgroup 3

<30% reduction in size, and <20% increase in size

 

<50% reduction in nE

Response subgroup 4

20% increase in size

 

<50% reduction in nE

  1. Abbreviation: nE=normalised mean enhancement.