Visual demonstration of aliasing in planar nuclear medicine imaging: The importance of correct collimator selection by nuclear medicine practitioners. Issue 4 (November 2019)

• Record Type: Journal Article
• Authors: Elliott, J.; O'Sullivan, P.; Crooker, T.; Barnden, T.
• Is Part Of: Radiography. Volume 25:Issue 4(2019)
• Page Start: e119
• Page End: e122
• Publication Date: 2019-11
• Subjects: Aliasing artefact -- Nuclear medicine -- Planar imaging -- Gamma camera -- Bar phantom -- Collimator; Diagnostic imaging -- Periodicals; Radiotherapy -- Periodicals; Cancer -- Radiotherapy -- Periodicals; Diagnostic Imaging -- Periodicals; Neoplasms -- Periodicals; Radiotherapy -- Periodicals; Imagerie pour le diagnostic -- Périodiques; Radiothérapie -- Périodiques; Cancer -- Radiothérapie -- Périodiques; Electronic journals; 616.0757
• DOI: 10.1016/j.radi.2019.07.004
• Languages: English
• ISSNs: 1078-8174

Abstract

Abstract: Aliasing artefact is an imaging distortion phenomenon experienced in a wide variety of medical imaging modalities. This case report illustrates its occurrence during planar gamma camera nuclear medicine imaging under non-clinical conditions using experimental incorrect selection of collimators. In accordance with provision of an optimal service, nuclear medicine practitioners are recommended to have sufficient technical expertise along with knowledge of gamma camera operation. The purpose, construction and interaction of collimators used during planar imaging are presented herein with specific regards to the aliasing phenomenon. Furthermore, this case report recommends the careful planning of worklists to avoid frequent collimator changes to reduce the risk of human error.