Also found in: Acronyms.
the graphic record obtained by radioencephalography.
radioencephalogram(rā″dē-ō-ĕn-sĕf′ă-lō-grăm″) [″ + Gr. enkephalos, brain, + gramma, something written]
The record obtained when a radioactive tracer passes through the blood vessels of the brain.
a curve showing the passage of an injected tracer through the cerebral blood vessels as revealed by an external scintillation counter.