Cerebral blood flow (CBF) was measured by portable radionuclide cerebral imaging (RCI) and by four-vessel cerebral contrast arteriography in 15 clinically brain-dead patients, including six children. Neither technique showed evidence of CBF, although four RCI scans showed sagittal sinus activity. Portable scanning techniques are therefore considered valid determinants of brain death and may be useful in lieu of contrast cerebral arteriography.
Schwartz JA, Baxter J, Brill D, Burns JR. Radionuclide Cerebral Imaging Confirming Brain Death. JAMA. 1983;249(2):246–247. doi:10.1001/jama.1983.03330260064035
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