» Articles » PMID: 2574671

Myocardial Uptake of Meta-[123I]-iodobenzylguanidine [( 123I]-MIBG) in Patients with Myocardial Infarct

Overview
Journal Eur J Nucl Med
Specialty Nuclear Medicine
Date 1989 Jan 1
PMID 2574671
Citations 10
Authors
Affiliations
Soon will be listed here.
Abstract

Meta-123I-iodobenzylguanidine (123I-MIBG), which is an analog of norepinephrine, can be used to evaluate the integrity and function of sympathetic nerve endings in the heart. Myocardial uptake of 123I-MIBG was studied in 30 myocardial infarction patients and compared with the distribution of blood flow assessed with 201Tl. It was found that when a cold defect appeared on the 201Tl scintigram, its localization was identical to the cold defect on the 123I-MIBG scintigram. On the other hand, in three cases, a defect was found on the 123I-MIBG scintigram, corresponding to the electrocardiographic localization of the infarct, whereas the 201Tl scintigram was normal. Most strikingly, the present study shows that drugs (antagonists of the adrenergic receptors, calcium antagonists, amiodarone) decrease or even abolish (as in the case of labetalol) myocardial uptake of 123I-MIBG. Consequently, any interpretation of the 123I-MIBG scintigram must take into account the treatment administered.

Citing Articles

Impact of medications on mIBG uptake, with specific attention to the heart: Comprehensive review of the literature.

Jacobson A, Travin M J Nucl Cardiol. 2015; 22(5):980-93.

PMID: 25975946 DOI: 10.1007/s12350-015-0170-z.


Role of cardiac nuclear imaging in the management of critically ill patients.

Fattah A Eur J Nucl Med Mol Imaging. 2008; 35(9):1589-92.

PMID: 18425515 DOI: 10.1007/s00259-008-0786-1.


Cardiac neurotransmission SPECT imaging.

Flotats A, Carrio I J Nucl Cardiol. 2004; 11(5):587-602.

PMID: 15472644 DOI: 10.1016/j.nuclcard.2004.07.007.


Effects of therapy with amiodarone on clinical, functional, and cardiac sympathetic innervation in patients with idiopathic dilated cardiomyopathy.

Flotats A, Carrio I J Nucl Cardiol. 2004; 11(2):110-3.

PMID: 15052240 DOI: 10.1016/j.nuclcard.2003.12.009.


MIBG imaging.

Patel A, Iskandrian A J Nucl Cardiol. 2002; 9(1):75-94.

PMID: 11845133 DOI: 10.1067/mnc.2002.121471.


References
1.
Jaques Jr S, Tobes M, Sisson J, Baker J, Wieland D . Comparison of the sodium dependency of uptake of meta-lodobenzylguanidine and norepinephrine into cultured bovine adrenomedullary cells. Mol Pharmacol. 1984; 26(3):539-46. View

2.
Wieland D, Brown L, Rogers W, Worthington K, Wu J, Clinthorne N . Myocardial imaging with a radioiodinated norepinephrine storage analog. J Nucl Med. 1981; 22(1):22-31. View

3.
Iversen L, Salt P, Wilson H . Inhibition of catecholamine uptake in the isolated rat heart by haloalkylamines related to phenoxybenzamine. Br J Pharmacol. 1972; 46(4):647-57. PMC: 1666366. DOI: 10.1111/j.1476-5381.1972.tb06890.x. View

4.
Nakajo M, Shimabukuro K, Miyaji N, Shimada J, Shirono K, Sakata H . Rapid clearance of iodine-131 MIBG from the heart and liver of patients with adrenergic dysfunction and pheochromocytoma. J Nucl Med. 1985; 26(4):357-65. View

5.
Bralet J, DIDIER J, Moreau D, Opie L, Rochette L . Effect of alpha-adrenoceptor antagonists (phentolamine, nicergoline and prazosin) on reperfusion arrhythmias and noradrenaline release in perfused rat heart. Br J Pharmacol. 1985; 84(1):9-18. PMC: 1987215. View