Brain SPECT with dipyridamole stress to evaluate cerebral blood flow reserve in carotid artery disease.

Abstract

This study suggests that dipyridamole stress SPECT is useful in assessing cerebral blood flow reserve. It demonstrates the region of poor vascular reserve in patients with severe carotid artery disease. Dipyridamole SPECT scans show more extensive hypoperfusion than acetazolamide in the two cases.