EFFECT OF SMALL AMOUNTS OF I-131 ON TC-99M DETECTION BY SCINTILLATION CAMERA

1 January 1976

journal article
research article

Vol. 17 (12) , 1100-1101

Abstract

A patient who recently received a therapeutic dose of Na131I showed no 99mTc activity on the scintillation camera when a pertechnetate brain scan was attempted. Subsequent experiments showed that, when even small amounts of 131I were present in the field of view of a scintillation camera equipped with a collimator designed for low-energy photons, counting rates from 99mTc were markedly affected.

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