Accuracy of RIGS (11 patients)
The operative field was explored with a hand-held gamma probe. A positive radioimmunoguided test was defined as greater than normal vicinal tissue counts plus twice the SD of normal tissue counts(i.e., the square root of the counts). The hand-held gamma probe counts were recorded and compared with the results of anatomopathological examination.
| Location . | Sizea (cm) . | True-positive . | True-negative . | False-positive . | False-negative . | True/False . |
|---|---|---|---|---|---|---|
| Lymph node | ≥1 | 22 | 3 | 0 | 0 | 25 /0 |
| >0.5 | 5 | 14 | 1 | 0 | 19 /1 | |
| ≤0.5 | 16 | 85 | 8 | 13 | 101 /21 | |
| Othersb | 3 | 32 | 4 | 2 | 35 /6 | |
| Total (n = 208) | 46 | 134 | 13 | 15 |
| Location . | Sizea (cm) . | True-positive . | True-negative . | False-positive . | False-negative . | True/False . |
|---|---|---|---|---|---|---|
| Lymph node | ≥1 | 22 | 3 | 0 | 0 | 25 /0 |
| >0.5 | 5 | 14 | 1 | 0 | 19 /1 | |
| ≤0.5 | 16 | 85 | 8 | 13 | 101 /21 | |
| Othersb | 3 | 32 | 4 | 2 | 35 /6 | |
| Total (n = 208) | 46 | 134 | 13 | 15 |