Sympathetic neuroimaging provides an important supplement to physiological,
neurochemical, and neuropharmacological approaches in the evaluation of patients with
clinical autonomic disorders. Almost all sympathetic neuroimaging to date has involved
visualization of noradrenergic innervation in the left ventricular myocardium. Single-photon
emission computed tomography (SPECT) scanning after injection of the sympathomimetic
amine 123 I-metaiodobenzylguanidine (123 I-MIBG) constitutes by far the most commonly …