Table 3.
Radiologic findings.
| Group A | Group B | P value | |
|---|---|---|---|
| n = 9 | n = 37 | ||
| US | |||
| Normal | 3 | 7 | 0.083 |
| Dilatation | 4 | 12 | |
| Tumor | 0 | 15 | |
| CT | |||
| Normal | 6 | 6 | 0.003 |
| Dilatation | 3 | 9 | |
| Tumor | 0 | 20 | |
| ERCP | |||
| Normality | 2 | 4 | 0.597 |
| Abnormality | 7 | 28 | |
| IDUS | |||
| Normality | 0 | 1 | 1.000 |
| Tumor | 8 | 29 |
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