Edge Packing Artifact Mimicking Lytic–Sclerotic Lesion in Bone Scan Due to Spontaneous Malfunction of Photomultiplier Tubes in the Gamma Camera

Edge packing is a kind of nonuniformity artifact, which usually appears as an accumulation of counts at the edge of the field of view compared to the central region. The common causes of edge packing artifact in the image are defective collimator, noncalibrated photomultiplier tube (PMT), and improp...

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Autores principales: Nautiyal, Amit, Mitra, Deepanjan, Mukherjee, Anirban, Chatterjee, Piyali, Roy, Anindya
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Wolters Kluwer - Medknow 2019
Materias:
Case Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6481219/
https://www.ncbi.nlm.nih.gov/pubmed/31040526
http://dx.doi.org/10.4103/ijnm.IJNM_168_18
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author Nautiyal, Amit
Mitra, Deepanjan
Mukherjee, Anirban
Chatterjee, Piyali
Roy, Anindya
author_facet Nautiyal, Amit
Mitra, Deepanjan
Mukherjee, Anirban
Chatterjee, Piyali
Roy, Anindya
author_sort Nautiyal, Amit
collection PubMed
description Edge packing is a kind of nonuniformity artifact, which usually appears as an accumulation of counts at the edge of the field of view compared to the central region. The common causes of edge packing artifact in the image are defective collimator, noncalibrated photomultiplier tube (PMT), and improper adjustment of deflector plates of CRT. We hereby discuss the occurrence of edge packing artifact due to a problem with the PMTs in the anterior head of gamma camera system during acquisition of bone scintigraphy which mimics as pathological lytic–sclerotic lesion during whole-body image at anterior acquisition. The artifact was successfully removed after the replacement of malfunctioning PMTs.
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spelling pubmed-64812192019-04-30 Edge Packing Artifact Mimicking Lytic–Sclerotic Lesion in Bone Scan Due to Spontaneous Malfunction of Photomultiplier Tubes in the Gamma Camera Nautiyal, Amit Mitra, Deepanjan Mukherjee, Anirban Chatterjee, Piyali Roy, Anindya Indian J Nucl Med Case Report Edge packing is a kind of nonuniformity artifact, which usually appears as an accumulation of counts at the edge of the field of view compared to the central region. The common causes of edge packing artifact in the image are defective collimator, noncalibrated photomultiplier tube (PMT), and improper adjustment of deflector plates of CRT. We hereby discuss the occurrence of edge packing artifact due to a problem with the PMTs in the anterior head of gamma camera system during acquisition of bone scintigraphy which mimics as pathological lytic–sclerotic lesion during whole-body image at anterior acquisition. The artifact was successfully removed after the replacement of malfunctioning PMTs. Wolters Kluwer - Medknow 2019 /pmc/articles/PMC6481219/ /pubmed/31040526 http://dx.doi.org/10.4103/ijnm.IJNM_168_18 Text en Copyright: © 2019 Indian Journal of Nuclear Medicine http://creativecommons.org/licenses/by-nc-sa/4.0 This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms.
spellingShingle Case Report
Nautiyal, Amit
Mitra, Deepanjan
Mukherjee, Anirban
Chatterjee, Piyali
Roy, Anindya
Edge Packing Artifact Mimicking Lytic–Sclerotic Lesion in Bone Scan Due to Spontaneous Malfunction of Photomultiplier Tubes in the Gamma Camera
title Edge Packing Artifact Mimicking Lytic–Sclerotic Lesion in Bone Scan Due to Spontaneous Malfunction of Photomultiplier Tubes in the Gamma Camera
title_full Edge Packing Artifact Mimicking Lytic–Sclerotic Lesion in Bone Scan Due to Spontaneous Malfunction of Photomultiplier Tubes in the Gamma Camera
title_fullStr Edge Packing Artifact Mimicking Lytic–Sclerotic Lesion in Bone Scan Due to Spontaneous Malfunction of Photomultiplier Tubes in the Gamma Camera
title_full_unstemmed Edge Packing Artifact Mimicking Lytic–Sclerotic Lesion in Bone Scan Due to Spontaneous Malfunction of Photomultiplier Tubes in the Gamma Camera
title_short Edge Packing Artifact Mimicking Lytic–Sclerotic Lesion in Bone Scan Due to Spontaneous Malfunction of Photomultiplier Tubes in the Gamma Camera
title_sort edge packing artifact mimicking lytic–sclerotic lesion in bone scan due to spontaneous malfunction of photomultiplier tubes in the gamma camera
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6481219/
https://www.ncbi.nlm.nih.gov/pubmed/31040526
http://dx.doi.org/10.4103/ijnm.IJNM_168_18
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