A comprehensive and efficient quality assurance program for an image-guided small animal irradiation system

In the field of preclinical radiotherapy, many new developments were driven by technical innovations. To make research of different groups comparable in that context and reliable, high quality has to be maintained. Therefore, standardized protocols and programs should be used. Here we present a guid...

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Main Authors: Severin Kampfer, Manuela A. Duda, Sophie Dobiasch, Stephanie E. Combs, Jan J. Wilkens
Format: Article
Language:English
Published: Elsevier 2022-08-01
Series:Zeitschrift für Medizinische Physik
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0939388922000320
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author Severin Kampfer
Manuela A. Duda
Sophie Dobiasch
Stephanie E. Combs
Jan J. Wilkens
author_facet Severin Kampfer
Manuela A. Duda
Sophie Dobiasch
Stephanie E. Combs
Jan J. Wilkens
author_sort Severin Kampfer
collection DOAJ
description In the field of preclinical radiotherapy, many new developments were driven by technical innovations. To make research of different groups comparable in that context and reliable, high quality has to be maintained. Therefore, standardized protocols and programs should be used. Here we present a guideline for a comprehensive and efficient quality assurance program for an image-guided small animal irradiation system, which is meant to test all the involved subsystems (imaging, treatment planning, and the irradiation system in terms of geometric accuracy and dosimetric aspects) as well as the complete procedure (end-to-end test) in a time efficient way. The suggestions are developed on a Small Animal Radiation Research Platform (SARRP) from Xstrahl (Xstrahl Ltd., Camberley, UK) and are presented together with proposed frequencies (from monthly to yearly) and experiences on the duration of each test. All output and energy related measurements showed stable results within small variation. Also, the motorized parts (couch, gantry) and other geometrical alignments were very stable. For the checks of the imaging system, the results are highly dependent on the chosen protocol and differ according to the settings. We received nevertheless stable and comparably good results for our mainly used protocol. All investigated aspects of treatment planning were exactly fulfilled and also the end-to-end test showed satisfying values. The mean overall time we needed for our checks to have a well monitored machine is less than two hours per month.
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spelling doaj.art-8ca4beca8a8f478c859aaaace0cb2afc2023-12-20T07:33:16ZengElsevierZeitschrift für Medizinische Physik0939-38892022-08-01323261272A comprehensive and efficient quality assurance program for an image-guided small animal irradiation systemSeverin Kampfer0Manuela A. Duda1Sophie Dobiasch2Stephanie E. Combs3Jan J. Wilkens4Department of Radiation Oncology, School of Medicine and Klinikum rechts der Isar, Technical University of Munich (TUM), Ismaninger Str. 22, Munich, Germany; Physics Department, Technical University of Munich (TUM), James-Franck-Str. 1, 85748, Garching, Germany; Corresponding author: Severin Kampfer, Klinikum rechts der Isar, Klinik und Poliklinik für RadioOnkologie und Strahlentherapie, Ismaninger Straße 22, 81675 München, Germany.Department of Radiation Oncology, School of Medicine and Klinikum rechts der Isar, Technical University of Munich (TUM), Ismaninger Str. 22, Munich, Germany; Physics Department, Technical University of Munich (TUM), James-Franck-Str. 1, 85748, Garching, GermanyDepartment of Radiation Oncology, School of Medicine and Klinikum rechts der Isar, Technical University of Munich (TUM), Ismaninger Str. 22, Munich, Germany; Institute of Radiation Medicine (IRM), Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764, Neuherberg, GermanyDepartment of Radiation Oncology, School of Medicine and Klinikum rechts der Isar, Technical University of Munich (TUM), Ismaninger Str. 22, Munich, Germany; Institute of Radiation Medicine (IRM), Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764, Neuherberg, Germany; German Cancer Consortium (DKTK), Munich, GermanyDepartment of Radiation Oncology, School of Medicine and Klinikum rechts der Isar, Technical University of Munich (TUM), Ismaninger Str. 22, Munich, Germany; Physics Department, Technical University of Munich (TUM), James-Franck-Str. 1, 85748, Garching, GermanyIn the field of preclinical radiotherapy, many new developments were driven by technical innovations. To make research of different groups comparable in that context and reliable, high quality has to be maintained. Therefore, standardized protocols and programs should be used. Here we present a guideline for a comprehensive and efficient quality assurance program for an image-guided small animal irradiation system, which is meant to test all the involved subsystems (imaging, treatment planning, and the irradiation system in terms of geometric accuracy and dosimetric aspects) as well as the complete procedure (end-to-end test) in a time efficient way. The suggestions are developed on a Small Animal Radiation Research Platform (SARRP) from Xstrahl (Xstrahl Ltd., Camberley, UK) and are presented together with proposed frequencies (from monthly to yearly) and experiences on the duration of each test. All output and energy related measurements showed stable results within small variation. Also, the motorized parts (couch, gantry) and other geometrical alignments were very stable. For the checks of the imaging system, the results are highly dependent on the chosen protocol and differ according to the settings. We received nevertheless stable and comparably good results for our mainly used protocol. All investigated aspects of treatment planning were exactly fulfilled and also the end-to-end test showed satisfying values. The mean overall time we needed for our checks to have a well monitored machine is less than two hours per month.http://www.sciencedirect.com/science/article/pii/S0939388922000320Small animal irradiatorQuality assuranceSARRPImage-guided radiotherapyPreclinical radiotherapy
spellingShingle Severin Kampfer
Manuela A. Duda
Sophie Dobiasch
Stephanie E. Combs
Jan J. Wilkens
A comprehensive and efficient quality assurance program for an image-guided small animal irradiation system
Zeitschrift für Medizinische Physik
Small animal irradiator
Quality assurance
SARRP
Image-guided radiotherapy
Preclinical radiotherapy
title A comprehensive and efficient quality assurance program for an image-guided small animal irradiation system
title_full A comprehensive and efficient quality assurance program for an image-guided small animal irradiation system
title_fullStr A comprehensive and efficient quality assurance program for an image-guided small animal irradiation system
title_full_unstemmed A comprehensive and efficient quality assurance program for an image-guided small animal irradiation system
title_short A comprehensive and efficient quality assurance program for an image-guided small animal irradiation system
title_sort comprehensive and efficient quality assurance program for an image guided small animal irradiation system
topic Small animal irradiator
Quality assurance
SARRP
Image-guided radiotherapy
Preclinical radiotherapy
url http://www.sciencedirect.com/science/article/pii/S0939388922000320
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