ASL findings in 5 patients in whom brain death was diagnosed
| Case | Age (yr) | Sex | Causes | ASL Findings | CBF (Mean ± SD, mL × 100 g−1 × min−1) | MRA | |||
|---|---|---|---|---|---|---|---|---|---|
| Extremely Decreased Perfusion in the Whole Brain | Bright Vessel Signal Intensity around the Entry of Carotid Artery to the Skull (± Level) | External Carotid Circulation | Hollow Skull Sign | ||||||
| 1 | 71 | M | Cardiac arrest | + | +, Rt petrous ICA | + | + | 10.0 ± 2.3 | NV |
| 2 | 60 | M | Cardiac arrest | + | +, Bilateral cavernous ICAs | + | + | 8.5 ± 3.2 | NA |
| 3 | 75 | F | Cerebral infarction | + | +, Lt petrous ICA | + | + | 7.0 ± 4.5 | NV |
| 4 | 50 | M | Encephalitis | + | +, Rt cavernous ICA and Lt petrous ICA | + | + | 7.5 ± 6.4 | NV |
| 5 | 48 | F | SLE encephalopathy | + | +, Rt petrous ICA and Lt cavernous ICA | + | + | 6.9 ± 2.8 | NA |
Note:—Lt indicates left; NA, not available; NV, no visualization of intracranial arterial flow; Rt, right; SLE, systemic lupus erythematous; +, present.