Positron emission tomographic imaging of cardiac sympathetic innervation and function

Journal Article · Tue May 01 00:00:00 EDT 1990 · Circulation; (USA)

DOI:https://doi.org/10.1161/01.CIR.81.5.1606· OSTI ID:6809550

Goldstein, D S; Chang, P C; Eisenhofer, G; Miletich, R; Finn, R; Bacher, J; Kirk, K L; Bacharach, S; Kopin, I J ^[1]

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1. National Institutes of Health, Bethesda, MD (USA)

Sites of uptake, storage, and metabolism of ({sup 18}F)fluorodopamine and excretion of ({sup 18}F)fluorodopamine and its metabolites were visualized using positron emission tomographic (PET) scanning after intravenous injection of the tracer into anesthetized dogs. Radioactivity was concentrated in the renal pelvis, heart, liver, spleen, salivary glands, and gall bladder. Uptake of 18F by the heart resulted in striking delineation of the left ventricular myocardium. Pretreatment with desipramine markedly decreased cardiac positron emission, consistent with dependence of the heart on neuronal uptake (uptake-1) for removal of circulating catecholamines. In reserpinized animals, cardiac positron emission was absent within 30 minutes after injection of ({sup 18}F)-6-fluorodopamine, demonstrating that the emission in untreated animals was from radioactive labeling of the sympathetic storage vesicles. Decreased positron emission from denervated salivary glands confirmed that the tracer was concentrated in sympathetic neurons. Radioactivity in the gall bladder and urinary system depicted the hepatic and renal excretion of the tracer and its metabolites. Administration of tyramine or nitroprusside increased and ganglionic blockade with trimethaphan decreased the rate of loss of myocardial radioactivity. The results show that PET scanning after administration of ({sup 18}F)fluorodopamine can be used to visualize sites of sympathetic innervation, follow the metabolism and renal and hepatic excretion of catecholamines, and examine cardiac sympathetic function.

• OSTI ID: 6809550
• Journal Information: Circulation; (USA), Vol. 81:5; ISSN 0009-7322
• Country of Publication: United States
• Language: English

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62 RADIOLOGY AND NUCLEAR MEDICINE
CARDIOVASCULAR AGENTS
DIAGNOSIS
DOPAMINE
METABOLISM
NERVOUS SYSTEM DISEASES
POSITRON COMPUTED TOMOGRAPHY
EVALUATION
AUTONOMIC NERVOUS SYSTEM
DOGS
FLUORINE 18
HEART
METABOLITES
RESERPINE
TISSUE DISTRIBUTION
TYRAMINE
UPTAKE
ALKALOIDS
AMINES
ANIMALS
ANTIHYPERTENSIVE AGENTS
AROMATICS
AUTONOMIC NERVOUS SYSTEM AGENTS
AZAARENES
AZOLES
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BODY
CARDIOTONICS
CARDIOVASCULAR SYSTEM
COMPUTERIZED TOMOGRAPHY
DIAGNOSTIC TECHNIQUES
DISEASES
DISTRIBUTION
DRUGS
EMISSION COMPUTED TOMOGRAPHY
FLUORINE ISOTOPES
HETEROCYCLIC COMPOUNDS
HOURS LIVING RADIOISOTOPES
HYDROXY COMPOUNDS
INDOLES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIGHT NUCLEI
MAMMALS
NERVOUS SYSTEM
NEUROREGULATORS
NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANS
PHENOLS
POLYPHENOLS
PYRROLES
RADIOISOTOPES
SYMPATHOLYTICS
SYMPATHOMIMETICS
TOMOGRAPHY
VERTEBRATES
550601* - Medicine- Unsealed Radionuclides in Diagnostics