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Iofetamine Hydrochloride I 123: A New Radiopharmaceutical for Cerebral Perfusion Imaging

Iofetamine Hydrochloride I 123: A New Radiopharmaceutical for Cerebral Perfusion Imaging

R W Druckenbrod, C C Williams, M J Gelfand

DICP. 1989 Jan;23(1):19-24.

PMID: 2655294

Abstract:

Iofetamine hydrochloride I 123 permits cerebral blood perfusion imaging with single photon emission computed tomography (SPECT). SPECT is more widely available than positron emission tomography, and complements anatomic visualization with X-ray computed tomography (CT) or magnetic resonance imaging. Iofetamine is an amphetamine analog that is rapidly taken up by the lungs, then redistributed principally to the liver and brain. The precise mechanism of localization has not been determined, but is believed to result from nonspecific receptor binding. Brain uptake peaks at 30 minutes postinjection and remains relatively constant through 60 minutes. The drug is metabolized and excreted in the urine, with negligible activity remaining at 48 hours. When compared with CT in stroke patients, visualization may be performed sooner after symptom onset and a larger zone of involvement may be evident with iofetamine. Localization of seizure foci and diagnosis of Alzheimer's disease may also be possible. As CT has revolutionized noninvasive imaging of brain anatomy, SPECT with iofetamine permits routine cerebral blood flow imaging.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP95896483	Iofetamine hydrochloride		95896-48-3	Price

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