Characteristics | DWI-positive (N=11) | DWI-negative (N=35) | OR (95% CI) | p Value |
---|---|---|---|---|
Age (years) | 79.7±4.1 | 72.5±8.6 | 0.0085 | |
Male sex (% of patients) | 11 (100.0) | 31 (88.6) | ∞ (0.20 to ∞) | 0.5588 |
Asymptomatic arteries (% of patients) | 5 (45.5) | 19 (54.3) | 1.41 (0.30 to 7.08) | 0.7343 |
Risk factors (% of patients) | ||||
Hypertension | 10 (90.9) | 28 (80.0) | 2.46 (0.26 to 123.70) | 0.6579 |
Diabetes | 4 (36.4) | 10 (28.6) | 1.42 (0.25 to 7.20) | 0.7130 |
Dyslipidemia | 5 (45.5) | 19 (54.3) | 0.71 (0.14 to 3.38) | 0.7343 |
Previous cardiovascular disease | 4 (36.4) | 11 (31.4) | 1.24 (0.22 to 6.20) | 1.0000 |
Previous percutaneous coronary intervention | 2 (18.2) | 8 (22.9) | 0.75 (0.07 to 4.89) | 1.0000 |
Previous coronary-artery bypass | 0 (0) | 4 (11.4) | 0 (0.00 to 4.93) | 0.5590 |
Stenosis characteristics | ||||
Percentage stenosis at treatment | 76.0±17.9 | 81.1±10.1 | 0.5603 | |
Left carotid artery treated (% of patients) | 3 (27.3) | 18 (51.4) | 0.36 (0.05 to 1.84) | 0.1878 |
roSI | 1.53±0.37 | 1.34±0.26 | 0.1132 | |
Closed cell stent (% of patients) | 6 (54.5) | 15 (42.9) | 1.58 (0.33 to 7.95) | 0.7299 |
Proximal balloon protection (% of patients) | 9 (81.8) | 30 (85.7) | 0.75 (0.10 to 9.21) | 1.0000 |
Distal balloon protection (% of patients) | 5 (45.5) | 9 (25.7) | 2.36 (0.45 to 12.11) | 0.2691 |
CBF characteristics | ||||
CBF of the ipsilateral MCA territory (ml/min/100 g) | 26.7±5.2 | 26.0±5.1 | 0.8368 | |
CVR of the ipsilateral MCA territory (%) | 1.4±18.2 | 22.4±25.8 | 0.0160 |
Characteristics are reported as the mean±SD or the number (%) of patients.
CBF, cerebral blood flow; CVR, cerebrovascular reserve; DWI, diffusion-weighted image; MCA, middle cerebral artery; roSI, relative overall plaque magnetic resonance signal intensity.