Whole brain CT Perfusion after cerebral air embolism.

摘要

Cerebral air embolism (CAE) occurs as a result of air entering the arterial or venous circulation. Iatrogenic causes of CAE are found across all specialties, and include inadvertent air entry during cardiac catheterization, angiography, lung biopsy or via an intravascular catheter. Ischemic brain injury occurs when air emboli directly obstruct intracranial arteries or cause inflammation, blood brain barrier breakdown and cerebral edema which secondarily interfere with blood supply to the brain.