Table 7 Choi Criteria
From: Imaging biomarkers for evaluating tumor response: RECIST and beyond
Response | Criteria |
|---|---|
CR | • Disappearance of all lesions • No new lesions |
PR | • A decrease in tumor size ≥ 10 % or a decreased in tumor attenuation (Hounsfield unit) ≥ 15 % on CT • No new lesions • No obvious progression of non-measurable disease |
PD | • An increase in tumor size ≥ 10 % and does not meet criteria of PR by tumor attenuation on CT • New lesions • New intratumoral nodules or increase in size of the existing intratumoral nodules |
SD | • Does not meet criteria of CR, PR, or PD • No symptomatic deterioration resulted from tumor progression |