Table 2. CTP parameters of the symptomatic and of the asymptomatic limb.
| CT-perfusion parameters | Symptomatic limb | Asymptomatic limb | p-value | |
|---|---|---|---|---|
| All lesions (n = 35) | Blood flow [ml/100ml*min-1] (mean ± SD) | 7.71 ± 2.96 | 7.75 ± 2.63 | 0.73 |
| Blood volume [ml/100ml] (mean ± SD) |
0.71 ± 0.33 | 0.73 ± 0.28 | 0.77 | |
| Mean transit time [s] (mean ± SD) |
7.22 ± 2.66 | 7.37 ± 2.70 | 0.58 | |
| Short lesions (n = 10) |
Blood flow [ml/100ml*min-1] (mean ± SD) | 5.89 ± 1.35 | 6.48 ± 1.53 | 0.05 |
| Blood volume [ml/100ml] (mean ± SD) |
0.49 ± 0.09 | 0.63 ± 0.18 | 0.01 | |
| Mean transit time [s] (mean ± SD) |
6.19 ± 1.31 | 6.88 ± 1.77 | 0.02 | |
| Medium lesions (n = 13) |
Blood flow [ml/100ml*min-1] (mean ± SD) | 7.11 ± 1.83 | 7.26 ± 2.29 | 0.86 |
| Blood volume [ml/100ml] (mean ± SD) |
0.62 ± 0.13 | 0.64 ± 0.23 | 0.51 | |
| Mean transit time [s] (mean ± SD) |
7.16 ± 2.54 | 7.21 ± 2.62 | 0.35 | |
| Long lesions (n = 12) |
Blood flow [ml/100ml*min-1] (mean ± SD) | 9.88 ± 3.66 | 9.35 ± 3.09 | 0.37 |
| Blood volume [ml/100ml] (mean ± SD) |
1.00 ± 0.40 | 0.89 ± 0.32 | 0.16 | |
| Mean transit time [s] (mean ± SD) |
8.13 ± 3.40 | 7.94 ± 3.46 | 0.43 | |
| ABI ≥0.70 (n = 8) |
Blood flow [ml/100ml*min-1] (mean ± SD) | 7.05 ± 1.44 | 7.06 ± 1.55 | 0.89 |
| Blood volume [ml/100ml] (mean ± SD) |
0.58 ± 0.08 | 0.67 ± 0.26 | 0.48 | |
| Mean transit time [s] (mean ± SD) |
6.71 ± 1.70 | 7.31 ± 2.07 | 0.12 | |
| ABI 0.60–0.69 (n = 9) |
Blood flow [ml/100ml*min-1] (mean ± SD) | 7.16 ± 2.52 | 8.05 ± 2.81 | 0.07 |
| Blood volume [ml/100ml] (mean ± SD) |
0.58 ± 0.13 | 0.68 ± 0.19 | 0.24 | |
| Mean transit time [s] (mean ± SD) |
6.25 ± 2.00 | 6.33 ± 2.21 | 0.77 | |
| ABI ≤0.59 (n = 10) |
Blood flow [ml/100ml*min-1] (mean ± SD) | 9.27 ± 3.52 | 8.01 ± 2.64 | 0.42 |
| Blood volume [ml/100ml] (mean ± SD) |
0.96 ± 0.35 | 0.88 ± 0.35 | 0.19 | |
| Mean transit time [s] (mean ± SD) |
8.46 ± 4.06 | 8.49 ± 4.07 | 0.96 |
SD: standard deviation.