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This table shows usable vein segments determined by each measurement method.
| TUS usable vein lengths | Intra-operative usable vein lengths | Mean of both measures | Difference of both measures |
|---|---|---|---|
| 2 | 2 | 2 | 0 |
| 3 | 3 | 3 | 0 |
| 2 | 2 | 2 | 0 |
| 2 | 1 | 1.5 | 1 |
| 3 | 2.5 | 2.75 | 0.5 |
| 3 | 3 | 3 | 0 |
| 2 | 2 | 2 | 0 |
| 3 | 1.5 | 2.25 | 1.5 |
| 2 | 2 | 2 | 0 |
| 2 | 2 | 2 | 0 |
| 1 | 0 | 0.5 | 1 |
| 3 | 3 | 3 | 0 |
| 1 | 1 | 1 | 0 |
| 3 | 3 | 3 | 0 |
| Total=33 | Total=28 | Mean difference=0.286 |
