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Concordance and discordance between overlay guidance system and venography for identifying PV apposition and leaks
| Venogram |
||||
|---|---|---|---|---|
| Leak | No leak | Total | ||
| Overlay guidance system | Leak | 14 (20.6%) | 9 (13.2%) | 23 (33.8%) |
| No leak | 2 (2.9%) | 43 (63.2%) | 45 (66.2%) | |
| Total | 16 (23.5%) | 52 (76.5%) | 68 (100%) | |
