Clinical Study
Relationship of Common Vascular Anatomy to Cannulated Catheters
Table 3
Comparison of valve patterns across studied populations.
| Valve pattern | Adult ultrasound (blended all veins) | Pediatric ultrasound (blended all veins) |
| Type 1 (valve next to valve) | 6.7% | 0% | Type 2 (valve central to branch) | 19.2% | 20% | Type 3 (valve peripheral to branch) | 54.2% | 40% | Type 4 (valve alone) | 20.0% | 40% |
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