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CBCT Verification of SRT for Patients With Brain Metastases

BACKGROUND: The aim of our work is to demonstrate the role of image guidance and volumetric imaging in stereotactic radiotherapy (SRT) of brain metastases. METHODS: Between 2018 and 2020, 106 patients underwent intracranial stereotactic radiotherapy. 10 patients with metastatic brain tumors treated...

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Autores principales: Papp, Judit, Simon, Mihály, Csiki, Emese, Kovács, Árpád
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8807635/
https://www.ncbi.nlm.nih.gov/pubmed/35127470
http://dx.doi.org/10.3389/fonc.2021.745140
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author Papp, Judit
Simon, Mihály
Csiki, Emese
Kovács, Árpád
author_facet Papp, Judit
Simon, Mihály
Csiki, Emese
Kovács, Árpád
author_sort Papp, Judit
collection PubMed
description BACKGROUND: The aim of our work is to demonstrate the role of image guidance and volumetric imaging in stereotactic radiotherapy (SRT) of brain metastases. METHODS: Between 2018 and 2020, 106 patients underwent intracranial stereotactic radiotherapy. 10 patients with metastatic brain tumors treated with SRT were randomly selected and included in our study model. Patients were scanned pre- and post-treatment with cone beam CT. Total of 100 verifications of 50 stereotaxic treatments were performed and analyzed. RESULTS: Population mean X, Y, Z values were -0.13 cm, -0.04 cm, -0.03 cm, respectively, rotation values 0.81°, 0.51°, 0.46°, respectively. Systematic error components for translational displacements pre corrections were as follows: 0.14 cm for X, 0.13 cm for Y and 0.1 cm for Z. Systematic error components of the post-treatment HR 3D CBCTs were as follows: 0.01 cm for X, 0.06 cm for Y and 0.04 cm for Z. CONCLUSIONS: Population mean values close to 0 confirmed that there is no systematic variation in our system and the accuracy of our equipment and tools is reliable. HR 3D CBCT scans performed pre SRTs further refine patient and target volume setting, support medical decision making and eliminate the possibility of gross error.
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spelling pubmed-88076352022-02-03 CBCT Verification of SRT for Patients With Brain Metastases Papp, Judit Simon, Mihály Csiki, Emese Kovács, Árpád Front Oncol Oncology BACKGROUND: The aim of our work is to demonstrate the role of image guidance and volumetric imaging in stereotactic radiotherapy (SRT) of brain metastases. METHODS: Between 2018 and 2020, 106 patients underwent intracranial stereotactic radiotherapy. 10 patients with metastatic brain tumors treated with SRT were randomly selected and included in our study model. Patients were scanned pre- and post-treatment with cone beam CT. Total of 100 verifications of 50 stereotaxic treatments were performed and analyzed. RESULTS: Population mean X, Y, Z values were -0.13 cm, -0.04 cm, -0.03 cm, respectively, rotation values 0.81°, 0.51°, 0.46°, respectively. Systematic error components for translational displacements pre corrections were as follows: 0.14 cm for X, 0.13 cm for Y and 0.1 cm for Z. Systematic error components of the post-treatment HR 3D CBCTs were as follows: 0.01 cm for X, 0.06 cm for Y and 0.04 cm for Z. CONCLUSIONS: Population mean values close to 0 confirmed that there is no systematic variation in our system and the accuracy of our equipment and tools is reliable. HR 3D CBCT scans performed pre SRTs further refine patient and target volume setting, support medical decision making and eliminate the possibility of gross error. Frontiers Media S.A. 2022-01-19 /pmc/articles/PMC8807635/ /pubmed/35127470 http://dx.doi.org/10.3389/fonc.2021.745140 Text en Copyright © 2022 Papp, Simon, Csiki and Kovács https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Oncology
Papp, Judit
Simon, Mihály
Csiki, Emese
Kovács, Árpád
CBCT Verification of SRT for Patients With Brain Metastases
title CBCT Verification of SRT for Patients With Brain Metastases
title_full CBCT Verification of SRT for Patients With Brain Metastases
title_fullStr CBCT Verification of SRT for Patients With Brain Metastases
title_full_unstemmed CBCT Verification of SRT for Patients With Brain Metastases
title_short CBCT Verification of SRT for Patients With Brain Metastases
title_sort cbct verification of srt for patients with brain metastases
topic Oncology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8807635/
https://www.ncbi.nlm.nih.gov/pubmed/35127470
http://dx.doi.org/10.3389/fonc.2021.745140
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