Early and delayed Tc-99m glucoheptonate brain scintigraphy: are routine early images indicated?

Both early and delayed Tc-99m glucoheptonate brain images were evaluated in 859 patients in order to determine whether the early imaging with this agent is clinically useful. The results suggest that the early brain images are inferior to the delayed ones in detecting CNS lesions. Use of both, however, may help to differentiate skull or scalp abnormalities from true lesions of the brain.