Table 3. The location of meningeal enhancement on contrast-enhanced fluid-attenuated inversion recovery (FLAIR) image and the number of patients with traumatic brain lesions.
| Factor | Positive meningeal enhancement | Negative*(n = 22/54) | |||
| Diffuse (n = 12/54) | Localized (n = 8/54) | Falx cerebri (n = 12/54) | Total (n = 32/54) | ||
| TBI (n/28) † | 12 | 8 | 3 | 23 | 5 |
| SAH/IVH | 7 | 5 | 0 | 12 | 2 |
| SDH | 10 | 7 | 2 | 19 | 5 |
| Brain contusion/intraparenchymal hemorrhage | 6 | 1 | 0 | 7 | 2 |
| DAI | 0 | 1 | 1 | 2 | 1 |
| TI (days) ‡ | 4.3±4.3 | 0.9±1.4 | 2.9±5.3 | 2.9±4.4 | 3.5±3.9 |
*Number of patients who showed no meningeal enhancement on contrast-enhanced FLAIR images among a total of 54 patients.
†
Number of patients out of 28 patients who were identified as having a TBI using the combination of routine images and contrast-enhanced FLAIR image.
‡
The data are the means ± standard deviations.
Note − TBI indicates traumatic brain injury; SAH, subarachnoid hemorrhage; IVH, intraventricular hemorrhage; SDH, subdural hemorrhage; DAI, diffuse axonal injury; TI, time interval.