"Clearly, it's much better if the patient is alert and awake, " says Dr. KeithBlack, chief of neurosurgery at Cedars-Sinai Medical Center in Los Angeles.
The skull of a child is thinner, allowing radiation to penetrate deeper compared with that of an adult, according to Dr. KeithBlack, chairman of Cedars-Sinai Hospital's Department of Neurosurgery in Los Angeles.