Efficacy of Administering Simultaneous Oral Perchlorate and Intravenous ^99m TcO₄ ^– for Brain Scanning

Abstract

Brain scans were performed using the following methods: (A) oral administration of perchlorate at least 30 min before i.v. injection of ^99mTc-pertechnetate (^99mTcO₄ ^–) and (B) simultaneous administration of oral perchlorate and i.v. ^99mTcO₄ ^–. The scans were retrospectively reviewed for choroid plexus uptake of technetium and scan quality. The simultaneous administration of oral perchlorate and i.v. ^99mTcO₄ ^– is an effective method of performing brain scans and should replace outdated protocols requiring treatment with perchlorate before i.v. administration of pertechnetate.