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Comparison of measured urinary stone diameter (r) on true non-contrast (TNC), virtual non-contrast (VNC) and post-contrast (CE) images
| Reader 1 | r/mm | SD | p | |
|---|---|---|---|---|
| TNC vs | VNC | 6.90 | 6,586 | .763 |
| CE | 7.05 | 6,500 | .327 | |
| VNC vs | CE | 7.19 | 6,546 | .175 |
| Reader 2 | ||||
| TNC vs | VNC | 7.45 | 6,501 | .556 |
| CE | 7.33 | 6,366 | .097 | |
| VNC vs | CE | 7.67 | 6,496 | .105 |
