Table 2.
FMD and NMD parameters according to the aneurysm diameter and the Fontaine stage.
| All patients (N = 150) | 30–39 mm (N＝12) | 40–55 mm (N＝104) | >55 mm (N＝34) | P Value | |
|---|---|---|---|---|---|
| FMD | |||||
| ΔFMD (%) | 4.6 ± 2.7 | 4.1 ± 2.7 | 4.5 ± 2.7 | 5.0 ± 2.5 | 0.36 |
| Expansion start time (s) | 30.0 ± 13.6 | 32.2 ± 12.0 | 30.2 ± 14.2 | 28.4 ± 12.0 | 0.38 |
| Expansion time (s) | 21.9 ± 11.2 | 19.8 ± 8.1 | 21.0 ± 11.0 | 25.3 ± 12.0 | 0.08 |
| Blood flow decay time constant (s) | 18.8 ± 11.2 | 21.4 ± 12.3 | 18.5 ± 11.4 | 18.6 ± 10.0 | 0.72 |
| FMD-AUC | 1.8 ± 1.3 | 1.7 ± 1.2 | 1.6 ± 1.36 | 2.2 ± 1.3 | 0.01a |
| Maximal dilation rate (mm/s) | 0.02 ± 0.01 | 0.02 ± 0.01 | 0.02 ± 0.01 | 0.02 ± 0.01 | 0.32 |
| Extended time constant (s) | 52.2 ± 69.7 | 51.3 ± 61.4 | 49.7 ± 59.3 | 60.5 ± 96.2 | 0.35 |
| NMD | |||||
| ΔNMD (%) | 18.8 ± 6.5 | 16.1 ± 6.7 | 19.0 ± 6.4 | 19.2 ± 6.4 | 0.21 |
| Expansion start time (s) | 123.4 ± 60.5 | 137.3 ± 58.8 | 121.9 ± 61.4 | 123.3 ± 57.7 | 0.84 |
| Expansion time (s) | 514.0 ± 177.5 | 487.9 ± 164.2 | 521.8 ± 183.6 | 498.4 ± 160.0 | 0.20 |
| NMD-AUC | 270.3 ± 151.4 | 258.3 ± 227.3 | 273.6 ± 145.4 | 264.0 ± 138.0 | 0.16 |
| Maximal dilation rate (mm/s) | 0.02 ± 0.02 | 0.02 ± 0.01 | 0.03 ± 0.02 | 0.03 ± 0.02 | 0.15 |
| Extended time constant (s) | 231.8 ± 109.0 | 253.5 ± 144.1 | 233.1 ± 106.6 | 220.5 ± 101.4 | 0.28 |
| All patients (N = 50) | II (N＝28) | III (N＝15) | IV (N = 7) | P Value |
|
| FMD | |||||
| ΔFMD (%) | 3.4 ± 2.0 | 3.5 ± 1.9 | 3.5 ± 2.5 | 2.7 ± 0.9 | 0.71 |
| Expansion start time (s) | 28.0 ± 17.1 | 24.7 ± 17.0 | 29.9 ± 16.7 | 33.9 ± 15.9 | 0.19 |
| Expansion time (s) | 22.8 ± 11.9 | 24.4 ± 13.6 | 21.6 ± 9.5 | 18.5 ± 7.1 | 0.52 |
| Blood flow decay time constant (s) | 15.0 ± 6.8 | 15.5 ± 7.7 | 14.5 ± 5.9 | 14.2 ± 4.2 | 0.94 |
| FMD-AUC | 1.5 ± 1.6 | 1.8 ± 1.7 | 1.2 ± 1.5 | 0.4 ± 0.3 | 0.01a |
| Maximal dilation rate (mm/s) | 0.01 ± 0.00 | 0.01 ± 0.00 | 0.01 ± 0.00 | 0.01 ± 0.00 | 0.10 |
| Extended time constant (s) | 35.7 ± 24.3 | 33.4 ± 23.7 | 34.9 ± 21.8 | 46.7 ± 28.5 | 0.40 |
| NMD | |||||
| ΔNMD (%) | 13.3 ± 7.2 | 14.3 ± 7.6 | 13.8 ± 6.0 | 11.1 ± 6.4 | 0.11 |
| Expansion start time (s) | 138.3 ± 92.3 | 147.5 ± 106.9 | 143.3 ± 75.0 | 106.0 ± 33.5 | 0.20 |
| Expansion time (s) | 437.1 ± 202.9 | 458.3 ± 207.9 | 421.1 ± 223.1 | 379.0 ± 112.6 | 0.71 |
| NMD-AUC | 170.1 ± 147.7 | 195.9 ± 154.0 | 172.3 ± 144.6 | 110.0 ± 61.9 | 0.03a |
| Maximal dilation rate (mm/s) | 0.02 ± 0.01 | 0.02 ± 0.01 | 0.02 ± 0.01 | 0.01 ± 0.01 | 0.42 |
| Extended time constant (s) | 400.3 ± 439.3 | 396.2 ± 410.8 | 274.7 ± 286.3 | 471.6 ± 533.7 | 0.34 |
Data are expressed as mean ± SD.
a
P value < 0.05.