Target definition in radiotherapy of prostate cancer using magnetic resonance imaging only workflow

In magnetic resonance (MR) only radiotherapy, the target delineation needs to be performed without computed tomography (CT). We investigated in thirteen patients with prostate cancer, how the clinical target volume (CTV) was affected, when the target delineation procedure was changed from using both...

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Autores principales: Gunnlaugsson, Adalsteinn, Persson, Emilia, Gustafsson, Christian, Kjellén, Elisabeth, Ambolt, Petra, Engelholm, Silke, Nilsson, Per, Olsson, Lars E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2019
Materias:
Short Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7807603/
https://www.ncbi.nlm.nih.gov/pubmed/33458431
http://dx.doi.org/10.1016/j.phro.2019.03.004
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author Gunnlaugsson, Adalsteinn
Persson, Emilia
Gustafsson, Christian
Kjellén, Elisabeth
Ambolt, Petra
Engelholm, Silke
Nilsson, Per
Olsson, Lars E.
author_facet Gunnlaugsson, Adalsteinn
Persson, Emilia
Gustafsson, Christian
Kjellén, Elisabeth
Ambolt, Petra
Engelholm, Silke
Nilsson, Per
Olsson, Lars E.
author_sort Gunnlaugsson, Adalsteinn
collection PubMed
description In magnetic resonance (MR) only radiotherapy, the target delineation needs to be performed without computed tomography (CT). We investigated in thirteen patients with prostate cancer, how the clinical target volume (CTV) was affected, when the target delineation procedure was changed from using both CT and MR images to using MR images only. The mean volume of the CTV(CT/MR) was 61.0 cm(3) as compared to 49.9 cm(3) from MR-only based target delineation, corresponding to an average decrease of 18%. Our results show that CTV(MR-only) was consistently smaller than CTV(CT/MR), which has to be taken into consideration before clinical commissioning of MR-only radiotherapy.
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spelling pubmed-78076032021-01-14 Target definition in radiotherapy of prostate cancer using magnetic resonance imaging only workflow Gunnlaugsson, Adalsteinn Persson, Emilia Gustafsson, Christian Kjellén, Elisabeth Ambolt, Petra Engelholm, Silke Nilsson, Per Olsson, Lars E. Phys Imaging Radiat Oncol Short Communication In magnetic resonance (MR) only radiotherapy, the target delineation needs to be performed without computed tomography (CT). We investigated in thirteen patients with prostate cancer, how the clinical target volume (CTV) was affected, when the target delineation procedure was changed from using both CT and MR images to using MR images only. The mean volume of the CTV(CT/MR) was 61.0 cm(3) as compared to 49.9 cm(3) from MR-only based target delineation, corresponding to an average decrease of 18%. Our results show that CTV(MR-only) was consistently smaller than CTV(CT/MR), which has to be taken into consideration before clinical commissioning of MR-only radiotherapy. Elsevier 2019-03-20 /pmc/articles/PMC7807603/ /pubmed/33458431 http://dx.doi.org/10.1016/j.phro.2019.03.004 Text en © 2019 The Authors http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Short Communication
Gunnlaugsson, Adalsteinn
Persson, Emilia
Gustafsson, Christian
Kjellén, Elisabeth
Ambolt, Petra
Engelholm, Silke
Nilsson, Per
Olsson, Lars E.
Target definition in radiotherapy of prostate cancer using magnetic resonance imaging only workflow
title Target definition in radiotherapy of prostate cancer using magnetic resonance imaging only workflow
title_full Target definition in radiotherapy of prostate cancer using magnetic resonance imaging only workflow
title_fullStr Target definition in radiotherapy of prostate cancer using magnetic resonance imaging only workflow
title_full_unstemmed Target definition in radiotherapy of prostate cancer using magnetic resonance imaging only workflow
title_short Target definition in radiotherapy of prostate cancer using magnetic resonance imaging only workflow
title_sort target definition in radiotherapy of prostate cancer using magnetic resonance imaging only workflow
topic Short Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7807603/
https://www.ncbi.nlm.nih.gov/pubmed/33458431
http://dx.doi.org/10.1016/j.phro.2019.03.004
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