Morphologic properties of individual VWF molecules (mean ± SD) after 15 minutes of perfusion with 1 μg/mL VWF and 68 × 109/L fixed washed platelets
| Shear stress . | > 0.07 N/m2 . | > 4.55 N/m2 . |
|---|---|---|
| Number of measured molecules | 795 | 534 |
| Surface coverage, % | 7.8 | 4.5 |
| Mean area, square pixels | 180 ± 143 | 177 ± 130 |
| Mean perimeter, pixels | 67 ± 42 | 63 ± 32 |
| Mean major axis length, pixels | 20 ± 9 | 19 ± 8 |
| Mean major axis angle, degrees | − 10 ± 40 | − 1 ± 39 |
| Mean minor axis length, pixels | 12 ± 5 | 12 ± 5 |
| Mean minor axis angle, degrees | 5 ± 62 | 3 ± 64 |
| Mean eccentricity | 1.72 ± 0.48 | 1.72 ± 0.50 |
| Mean roundness | 0.56 ± 0.18 | 0.60 ± 0.17 |
| Mean feret diameter, pixels | 14 ± 5 | 14 ± 4 |
| Shear stress . | > 0.07 N/m2 . | > 4.55 N/m2 . |
|---|---|---|
| Number of measured molecules | 795 | 534 |
| Surface coverage, % | 7.8 | 4.5 |
| Mean area, square pixels | 180 ± 143 | 177 ± 130 |
| Mean perimeter, pixels | 67 ± 42 | 63 ± 32 |
| Mean major axis length, pixels | 20 ± 9 | 19 ± 8 |
| Mean major axis angle, degrees | − 10 ± 40 | − 1 ± 39 |
| Mean minor axis length, pixels | 12 ± 5 | 12 ± 5 |
| Mean minor axis angle, degrees | 5 ± 62 | 3 ± 64 |
| Mean eccentricity | 1.72 ± 0.48 | 1.72 ± 0.50 |
| Mean roundness | 0.56 ± 0.18 | 0.60 ± 0.17 |
| Mean feret diameter, pixels | 14 ± 5 | 14 ± 4 |