Indian Journal of Nuclear Medicine
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Year : 2020  |  Volume : 35  |  Issue : 2  |  Page : 154-159

Technical aspects and errors of triggering and synchronization in gated single photon emission computed tomography myocardial perfusion imaging

Department of Nuclear Medicine, Taleghani Educational Hospital, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran

Correspondence Address:
Dr. Mohsen Qutbi
Department of Nuclear Medicine, Taleghani Hospital, Yaman Street, Velenjak, 1985711151 Tehran
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijnm.IJNM_201_19

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Gated imaging, as a technically demanding procedure, requires special attention and effort to fulfill the technical adequacy and accuracy of the study, based on the available standard guidelines. One of the essential requirements to be met by both technologists and physicians, in nuclear cardiology, is triggering and synchronization as a fundamental subject of gating. There are many sources of gating errors that produce imaging artifacts and, in some occasions, render the images uninterpretable or the quantitative analyses less accurate. Sufficient knowledge of recognition of these artifacts and understanding of their related mechanisms (from physical and technical perspectives) enable the technologists and physicians to promote their performance in daily practice. In this article, intended as a readily practical technical review for nuclear medicine practitioners, it is aimed to present the technical and computer aspects of triggering and synchronization as well as the related errors during imaging.

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