Volume of the particulate material recovered in the distal filter and pathologic composition (117 positive cases)
| ≤1 λ (n = 83) | >1 λ (n = 27) | P | |
|---|---|---|---|
| No. (%) | No. (%) | ||
| Fibrin/platelet complex | 56 (33.5) | 22 (64) | .001 |
| Cell debris | 35 (21) | 24 (70.6) | <.001 |
| Cholesterol clefts | 29 (17.4) | 21 (61.8) | >.001 |
| Foam cells | 15 (9) | 9 (26.5) | .004 |
| Amorphous material | 5 (3) | 5 (14.7) | .004 |
| Collagen | 8 (4.8) | 1 (2.9) | .6 |
| Calcium | 4 (2.4) | 2 (5.9) | .2 |
| Smooth muscle | 4 (2.4) | 1 (2.9) | .8 |
| Capillary | 3 (1.8) | 0 (0) | .4 |