Myocardial iodine-123-metaiodobenzylguanidine images and autonomic nerve activity in normal subjects.

Abstract

These results indicate that myocardial MIBG uptake correlates with sympathetic nerve activity in normal subjects. Our data indicate that heterogeneous MIBG distribution in the left ventricle is a physiologic rather than artifactual phenomenon and may be related to vagal tone rather than sympathetic nerve activity.