Clinical Presentation

A 48-year-old woman with subarachnoid hemorrhage presents with decerebrate posturing to sternal rub, lower extremity withdrawal to pain, and absent brain stem reflexes (corneal, gag, oculocephalic). Her electroencephalogram (EEG) demonstrates no evidence of cerebral cortical activity.

Fig. 137.1

• Use a high-resolution collimator.

• Patient position: anterior with top of skull just below the top of the field of view

• Imaging time: 60-second dynamic at 1 second per frame; for static images, 3 minutes per frame

Image Interpretation