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. 2022 May 17;13:851609. doi: 10.3389/fneur.2022.851609

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Copyright © 2022 Pavel, Henderson, DeBruin and Cohen.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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(A) Standard dual-head gamma cameras are too large to get close to the patient's head without hitting the shoulders during rotation. As a result, the field of view of the detector is often poorly utilized with a significant portion of the detector collecting no signal from the brain. (B) CZT detectors are quite small and can be mounted such that the detectors can get very close to the patient's head, maximizing the portion of the field of view occupied by the patient's head. (C) Modern CZT gamma cameras can be configured to withdraw the detectors heads during rotation and then (D) extend the detectors to close proximity of the patient's head during the scanning portion of a step-and-shoot protocol.