Table 2.
Image characteristics of the observation group and the control group.
| Image characteristics | Control group (n = 52) | Observation group (n = 47) |
|---|---|---|
| Preliminary evaluation | ||
| Completely normal | 2 (3.85) | 1 (2.13) |
| Not completely normal but there were no ischemic changes | 33 (63.46) | 32 (68.09) |
| Early ischemic changes | 17 (32.69) | 14 (29.79) |
|
| ||
| Early ischemia changes range | ||
| None | 37 (71.15) | 35 (74.47) |
| ≤33% | 12 (23.08) | 9 (19.15) |
| ＞33% | 3 (5.77) | 3 (6.38) |
|
| ||
| ASPECTs scores in the middle cerebral artery region | ||
| 0–7 | 2 (3.85) | 3 (6.38) |
| 8–10 | 50 (96.15) | 44 (93.62) |
|
| ||
| Degree of low density tissue | ||
| None | 44 (84.62) | 37 (78.72) |
| Mild | 7 (13.46) | 8 (17.02) |
| Severe | 1 (1.92) | 2 (4.26) |
|
| ||
| Brain tissue swelling grade | ||
| None | 45 (86.54) | 38 (80.85) |
| Mild | 7 (13.46) | 8 (17.02) |
| Severe | 0 (0.00) | 1 (2.13) |
| Hyperdense middle cerebral artery sign | 3 (5.77) | 5 (10.64) |
|
| ||
| Existing brain tissue changes | ||
| Encephalopathy | ||
| None | 10 (19.23) | 8 (17.02) |
| Mild | 34 (65.38) | 31 (65.96) |
| Severe | 8 (15.38) | 8 (17.02) |
|
| ||
| Leukoaraiosis | ||
| None | 8 (15.38) | 8 (17.02) |
| Mild | 31 (59.62） | 26 (55.32) |
| Severe | 13 (25.00) | 13 (27.66) |