Table 1 Characteristics of gold standard manually abstracted radiology reportsα
Characteristics of radiology reports | Annotated reports (N (%)) |
|---|---|
Image types | n = 3011 |
Bone scan | 23 (0.8) |
Chest X-ray | 1320 (43.8) |
CT abdomen/pelvis | 127 (4.2) |
CT chest | 902 (30.0) |
CT chest/abdomen/pelvis | 123 (4.1) |
CT head | 149 (4.9) |
MRI body | 58 (1.9) |
MRI brain | 42 (1.4) |
PET scan | 267 (8.9) |
Image indication | n = 3009 |
Surveillance | 954 (31.7) |
Symptomatic | 649 (21.6) |
Follow up from prior abnormal chest imaging | 244 (8.1) |
Follow up from prior abnormal other imaging | 30 (1.0) |
Other | 480 (16.0) |
Unknown | 652 (21.7) |
Image findings | n = 3008 |
Suspicious | 331 (11.0) |
Recurrence | 110 (3.7) |
Benign | 959 (31.9) |
Nonspecific | 1019 (33.9) |
Second primary lung cancer | 14 (0.5) |
Second primary cancer, other | 11 (0.4) |
Other (unrelated to cancer) | 564 (18.8) |