Table 1.
MR imaging measurements of vessel wall thickness parameters for different arterial segments of the CoW in n = 10 patients with and without cerebrovascular disease.
| Segment | Lumen area (mm2) | Total vessel area (mm2) | Wall area (mm2) | Vessel wall thickness (mm) |
Normalized wall index | |||
|---|---|---|---|---|---|---|---|---|
| Mean | Minimum | Maximum | ||||||
| Anterior cerebral artery | A1 | 0.84 (0.47) | 2.92 (0.97) | 2.07 (0.56) | 0.45 (0.06) | 0.31 (0.04) | 0.52 (0.09) | 0.73 (0.09) |
| A2 | 0.75 (0.43) | 2.95 (0.88) | 2.20 (0.56) | 0.49 (0.08) | 0.32 (0.05) | 0.54 (0.13) | 0.75 (0.07) | |
| Internal carotid artery | 3.44 (1.86) | 8.90 (2.93) | 5.46 (1.46) | 0.66 (0.12) | 0.42 (0.09) | 0.86 (0.21) | 0.64 (0.12) | |
| Middle cerebral artery | 1.88 (1.01) | 5.62 (1.63) | 3.74 (0.89) | 0.58 (0.11) | 0.35 (0.07) | 0.78 (0.22) | 0.69 (0.12) | |
| Posterior cerebral artery | 1.07 (0.47) | 3.70 (1.05) | 2.63 (0.70) | 0.51 (0.08) | 0.34 (0.06) | 0.61 (0.12) | 0.72 (0.07) | |
| Basilar artery | proximal | 2.41 (1.01) | 6.79 (1.38) | 4.38 (1.12) | 0.61 (0.16) | 0.38 (0.11) | 0.73 (0.26) | 0.65 (0.11) |
| distal | 1.94 (1.00) | 5.37 (1.90) | 3.43 (1.14) | 0.53 (0.12) | 0.35 (0.08) | 0.61 (0.20) | 0.65 (0.10) | |
| Vertebral artery | 1.54 (0.97) | 4.74 (1.93) | 3.20 (1.15) | 0.54 (0.11) | 0.36 (0.07) | 0.59 (0.17) | 0.69 (0.09) | |
Values are given as mean (standard deviation).
For each vessel segment the measurements were averaged over the fixed length, and left and right were taken together (if applicable).