| Literature DB >> 2598955 |
A Savi1, P Gerundini, P Zoli, L Maffioli, A Compierchio, F Colombo, M Matarrese, E Deutsch.
Abstract
Hexakis (methoxyisobutilisonitrile) technetium(I), 99mTc-MIBI, has been proposed for myocardial perfusion studies. We have evaluated the biodistribution of this new agent in normal volunteers at rest and after stress. The biodistribution of 99mTc-MIBI is characterized by rapid blood clearance and a consequently early myocardial uptake. The initial intense hepatic activity is cleared into the gallbladder at 1 h after injection, and the best target to non target ratio is observed at 60-90 min after injection. Absorbed radiation dose calculations show that the thyroid is the critical target organ (230 mRad/mCi at rest), presumably because of 99mTc-pertechnetate generated in vivo. Our results indicate that 99mTc-MIBI is a promising tracer for myocardial perfusion imaging.Entities:
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Year: 1989 PMID: 2598955 DOI: 10.1007/bf00256936
Source DB: PubMed Journal: Eur J Nucl Med ISSN: 0340-6997