Clinical and demographic variables
| Variable | Normal MR Images (n = 7) | Abnormal DWIs and/or PWIs (n = 15) | Mismatch (n = 7) |
|---|---|---|---|
| Mean age ± SD (y) | 66 ± 21 | 62 ± 10 | 61 ± 9 |
| Mean duration ± SD (h) | 0.6 ± 0.5 | 3.3 ± 5 | 2.5 ± 4.4 |
| Average no. of TIAs | 1 ± 1 | 2 ± 1 | 2 ± 1 |
| Time to MR imaging ± SD (min) | 33 ± 19 | 56 ± 58 | 75 ± 79 |
| Sex | |||
| Male | 3 | 8 | 4 |
| Female | 4 | 7 | 3 |
| Prior stroke | 1 | 4 | 2 |
| Prior TIA | 1 | 2 | 2 |
| Hypertension | 5 | 11 | 6 |
| Diabetes mellitus | 1 | 7 | 3 |
| Coronary artery disease | 2 | 4 | 4 |
| Hyperlipidemia | 2 | 10 | 6 |
| Tobacco | 0 | 3 | 2 |
| Aphasia | 2 | 5 | 3 |
| Hemiparesis | 2 | 11 | 6 |
| Paresthesias | 2 | 4 | 3 |
| Cephalalgia | 2 | 2 | 2 |