Table 1: Methods of tumor measurement and cut-off for the assessment of tumor response.

Criteria

Partial Response (PR)

Progressive Disease (PD)

Stable Disease (SD)

RECIST (2D)

Decrease by 30%

Increase by 20%

Neither PR nor PD criteria met

Volumetric spherical (3D)

Decrease by 65%

Increase by 73%

Neither PR nor PD criteria met

Volumetric ellipsoid (3D)

Decrease by 30%

Increase by 20%

Neither PR nor PD criteria met