Surgery and subsequent eventsa
| Total | T1-FLAIR Mismatch | P Value | ||
|---|---|---|---|---|
| Positive | Negative | |||
| No. of patients | 127 | 43 (33.9) | 84 (66.1) | |
| Aneurysm operation | ||||
| Craniotomy | 105 | 36 (83.7) | 69 (82.1) | 1.000 |
| Coiling | 22 | 7 (16.3) | 15 (17.9) | |
| Delayed angiographic vasospasm | 35 | 19 (44.2) | 16 (19.0) | .003 |
| DIND | 22 | 16 (37.2) | 6 (7.1) | <.001 |
| Infarction due to delayed vasospasm on DWI | 30 | 17 (39.5) | 13 (15.5) | .003 |
| Chronic hydrocephalusb | 54 | 23 (62.2) | 31 (37.8) | .029 |
| mRS score at 3 months | ||||
| >3–6 | 41 | 28 (65.1) | 13 (15.5) | <.001 |
Note:—DIND indicates delayed ischemic neurologic deficits.
↵a The “No. of patients” row shows the percentage of the total number of patients, whereas all other percentages in the “Positive” and “Negative” columns are the percentages of patients with positive and negative findings, respectively.
↵b The incidence of chronic hydrocephalus was calculated for the surviving patients.