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Table 2 Comparison of PET and CT response by dose cohort.

From: The utility of FDG-PET for assessing outcomes in oligometastatic cancer patients treated with stereotactic body radiotherapy: a cohort study

Dose Initial Response
CR PR SD PD Non-measurable
CT PET CT PET CT PET CT PET CT
n (%) n (%) n (%) n (%) n (%) n (%) n (%) n (%) n (%)
24 Gy (n=19) 4 (24%) 14 (74%) 8 (47%) 4 (21%) 4 (24%) 0 1 (6%) 1 (5%) 2 (11%)
30 Gy (n=20) 3 (21%) 12 (60%) 3 (21%) 7 (35%) 8 (57%) 1 (5%) 0 0 6 (30%)
36 Gy (n=8) 1 (14%) 4 (50%) 1 (14%) 4 (50%) 5 (71%) 0 0 0 1 (13%)
42 Gy (n=9) 1 (14%) 5 (55%) 2 (29%) 4 (44%) 5 (71%) 0 0 0 1 (13%)
50 Gy (n=2) 0 0 2 (100%) 2 (100%) 0 0 0 0 0
Total 9 (19%) 35 (60%) 16 (33%) 21 (36%) 22 (46%) 1 (2%) 1 (2%) 1 (2%) 10 (17%)
  1. CR complete response.
  2. Gy gray.
  3. PR partial response.
  4. PD progressive disease.
  5. SD stable disease.