Molecular Imaging 2017

Response Categorisation

Response criteria for evaluation of target lesions Complete Response (CR): Disappearance of all target lesions (TL) All nodes <10 mm i.e. non-pathological Partial Response (PR): >30% decrease in the sum of TL diameters Stable Disease (SD): Neither PR nor PD Progressive Disease (PD): > 20% increase in the sum of TL diameters Absolute increase of at least 5 mm New lesions

Eisenhauer et al. Eur J Cancer 2009;45:228–47