Concerns have, however, been raised about the safety of low-frequency transcranial ultrasound; insonation at 300 kHz was associated with increased rates of cerebral hemorrhage in a recent trial.

traumatic cerebral edema may closely simulate the general pressure phenomena which accompany actual extravasations of blood." 4 Current authorities on head injuries recognize the existence of ...

A subarachnoid hemorrhage was demonstrated on a head ... brain MRI scan, brain magnetic resonance angiogram, brain magnetic resonance venogram, cerebral angiography, transcranial Doppler ...