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Intra-arterial radionuclide cerebral angiography.

Abstract Eighty patients with a variety of intracranial afflictions were studied with the combined procedure of radiocontrast and radionuclide angiography. The radionuclide angiogram was obtained following an intracarotid or intravertebral artery injection of 10 millicuries radiopertechnetate in a 10-ml volume for each of the lateral and frontal or occipital projections. Serial 0.5-to 1.0-second exposure scans were obtained. The radionuclide method is more sensitive to abnormal vasculature and perfusion than radiography but lacks the resolution of the latter. Evidence supports the continued use of the radionuclide method as a supplement to cerebral radiography.