Lag correction model and ghosting analysis for an indirect‐conversion flat‐panel imager

Cone‐beam digital tomosynthesis (CBDT) is a new approach that was recently proposed for rapid tomographic imaging of soft‐tissue targets in the radiotherapy treatment room. One of the potential problems in implementing CBDT using, for example, megavoltage (MV) X rays is the possibility of artifacts...

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Detalles Bibliográficos
Autores principales: Mail, Noor, O'Brien, Peter, Pang, Geordi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2007
Materias:
Medical Imaging
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5722609/
https://www.ncbi.nlm.nih.gov/pubmed/17712306
http://dx.doi.org/10.1120/jacmp.v8i3.2483
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author Mail, Noor
O'Brien, Peter
Pang, Geordi
author_facet Mail, Noor
O'Brien, Peter
Pang, Geordi
author_sort Mail, Noor
collection PubMed
description Cone‐beam digital tomosynthesis (CBDT) is a new approach that was recently proposed for rapid tomographic imaging of soft‐tissue targets in the radiotherapy treatment room. One of the potential problems in implementing CBDT using, for example, megavoltage (MV) X rays is the possibility of artifacts caused by image lag and ghosting of the X‐ray detector used. In the present work, we developed a model to correct for image lag with indirect‐conversion flat‐panel imagers (FPIs) used for MV‐CBDT. This model is based on measurement and analysis of image lag in an indirect‐conversion FPI irradiated with a 6‐MV X‐ray beam. Our results demonstrated that image lag is amenable to correction. In addition, we measured the ghosting effect for an indirect‐conversion FPI and found it to be insignificant. PACS numbers: 87.53.Oq, 87.57.Ce
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spelling pubmed-57226092018-04-02 Lag correction model and ghosting analysis for an indirect‐conversion flat‐panel imager Mail, Noor O'Brien, Peter Pang, Geordi J Appl Clin Med Phys Medical Imaging Cone‐beam digital tomosynthesis (CBDT) is a new approach that was recently proposed for rapid tomographic imaging of soft‐tissue targets in the radiotherapy treatment room. One of the potential problems in implementing CBDT using, for example, megavoltage (MV) X rays is the possibility of artifacts caused by image lag and ghosting of the X‐ray detector used. In the present work, we developed a model to correct for image lag with indirect‐conversion flat‐panel imagers (FPIs) used for MV‐CBDT. This model is based on measurement and analysis of image lag in an indirect‐conversion FPI irradiated with a 6‐MV X‐ray beam. Our results demonstrated that image lag is amenable to correction. In addition, we measured the ghosting effect for an indirect‐conversion FPI and found it to be insignificant. PACS numbers: 87.53.Oq, 87.57.Ce John Wiley and Sons Inc. 2007-07-23 /pmc/articles/PMC5722609/ /pubmed/17712306 http://dx.doi.org/10.1120/jacmp.v8i3.2483 Text en © 2007 The Authors. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/3.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Medical Imaging
Mail, Noor
O'Brien, Peter
Pang, Geordi
Lag correction model and ghosting analysis for an indirect‐conversion flat‐panel imager
title Lag correction model and ghosting analysis for an indirect‐conversion flat‐panel imager
title_full Lag correction model and ghosting analysis for an indirect‐conversion flat‐panel imager
title_fullStr Lag correction model and ghosting analysis for an indirect‐conversion flat‐panel imager
title_full_unstemmed Lag correction model and ghosting analysis for an indirect‐conversion flat‐panel imager
title_short Lag correction model and ghosting analysis for an indirect‐conversion flat‐panel imager
title_sort lag correction model and ghosting analysis for an indirect‐conversion flat‐panel imager
topic Medical Imaging
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5722609/
https://www.ncbi.nlm.nih.gov/pubmed/17712306
http://dx.doi.org/10.1120/jacmp.v8i3.2483
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