Table 3:
Clinical and imaging characteristics among MVi, MVc, and Norm groups
| Variable | MVi (n = 14) | MVc (n = 10) | Norm (n = 19) | P Value |
|---|---|---|---|---|
| Age (mean) (yr) | 57.4 ± 12.2 | 53.5 ± 11.2 | 63.2 ± 12.4 | .113 |
| Men (No.) (%) | 10 (71.4) | 5 (50.0) | 10 (52.6) | .528 |
| Time to MRI examination (mean) (day) | 4.6 ± 1.6 | 5.5 ± 1.4 | 4.9 ± 1.2 | .312 |
| Admission NIHSS score (mean) | 11.5 ± 3.5 | 9.9 ± 4.3 | 8.5 ± 2.4 | .042a |
| Vascular risk factors | ||||
| Diabetes mellitus (No.) (%) | 7 (50.0) | 3 (30.0) | 10 (52.6) | .501 |
| Hypertension (No.) (%) | 6 (42.9) | 5 (50.0) | 7 (36.8) | .858 |
| Hyperlipidemia (No.) (%) | 9 (64.3) | 3 (30.0) | 10 (52.6) | .287 |
| Smoking (No.) (%) | 6 (42.9) | 4 (40.0) | 5 (26.3) | .651 |
| Drinking (No.) (%) | 5 (35.7) | 2 (20.0) | 4 (21.1) | .662 |
| Lesion left location (No.) (%) | 6 (42.9) | 8 (80.0) | 9 (47.4) | .117 |
| Vascular status (TIMI) | .001b | |||
| Occlusion (TIMI 0) | 12 (85.7) | 2 (20.0) | 6 (31.6) | |
| Stenosis (TIMI 1–2) | 2 (14.3) | 1 (10.0) | 3 (15.8) | |
| Normal (TIMI 3) | 0 (0.0) | 7 (70.0) | 10 (52.6) | |
| Site of arterial steno-occlusion | <.001b | |||
| Intracranial distal ICA | 4 (28.6) | 1 (10.0) | 1 (5.3) | |
| MCA M1 segment | 9 (64.3) | 1 (10.0) | 6 (26.3) | |
| MCA M2 segment | 1 (7.1) | 1 (10.0) | 3 (15.8) | |
| None | 0 (0.0) | 7 (70.0) | 10 (52.6) | |
| DWI lesion volume (median) (IQR) (cm3) | 30.2 (16.4–46.4) | 9.5 (7.5–20.8) | 3.3 (2.2–8.5) | <.001b |
| ΔCBF (mean) (%) | −64.5 ± 18.0 | 52.4 ± 22.2 | 4.8 ± 9.9 | <.001b |
Note:— IQR indicates interquartile range.
a
P < .05.
b
P < .01.