Table 3 Prediction of locations of tumors in different colon segments by index tests with errors
Prediction of locations of tumors | Index tests | |||||
|---|---|---|---|---|---|---|
Colon segments | Colonoscopy | The computed tomography colonography | ||||
Values | Correct | Error, 1 segment | Error, > 1 segment | Correct | Error, 1 segment | Error, > 1 segment |
Tumors evaluated | 280 | 280 | 280 | 280 | 280 | 280 |
Sigmoid colon | 105 (38) | 8 (3) | 0 (0) | 116 (41) | 0 (0) | 0 (0) |
Caecum | 36 (13) | 0 (0) | 0 (0) | 36 (13) | 0 (0) | 0 (0) |
Ascending colon | 26 (9) | 12 (4) | 3 (1) | 41 (15) | 4 (1) | 0 (0) |
Descending colon | 12 (4) | 8 (3) | 3 (1) | 20 (7) | 2 (1) | 0 (0) |
Hepatic flexure | 10 (4) | 8 (3) | 3 (1) | 14 (5) | 8 (3) | 0 (0) |
Transverse colon | 5 (2) | 6 (2) | 6 (2) | 14 (5) | 3 (1) | 0 (0) |
Splenic flexure | 7 (2) | 13 (5) | 2 (1) | 20 (7) | 2 (1) | 0 (0) |
Prediction of locations of tumors in all colon segments | 201 (72) | 55 (20) | 17 (6) | 261 (93) | 19 ( (7) | 0 (0) |