Cargando…
Brain Linac-Based Radiation Therapy: “Test Drive” of New Immobilization Solution and Surface Guided Radiation Therapy
Aim: To test inter-fraction reproducibility, intrafraction stability, technician aspects, and patient/physician’s comfort of a dedicated immobilization solution for Brain Linac-based radiation therapy (RT). Methods: A pitch-enabled head positioner with an open-face mask were used and, to evaluate in...
Autores principales: | , , , , , , , , , , , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8709255/ https://www.ncbi.nlm.nih.gov/pubmed/34945823 http://dx.doi.org/10.3390/jpm11121351 |
_version_ | 1784622890358931456 |
---|---|
author | Gregucci, Fabiana Bonaparte, Ilaria Surgo, Alessia Caliandro, Morena Carbonara, Roberta Ciliberti, Maria Paola Aga, Alberto Berloco, Francesco De Masi, Marina De Pascali, Christian Fragnoli, Federica Indellicati, Chiara Parabita, Rosalinda Sanfrancesco, Giuseppe Branà, Luciana Ciocia, Annarita Curci, Domenico Guida, Pietro Fiorentino, Alba |
author_facet | Gregucci, Fabiana Bonaparte, Ilaria Surgo, Alessia Caliandro, Morena Carbonara, Roberta Ciliberti, Maria Paola Aga, Alberto Berloco, Francesco De Masi, Marina De Pascali, Christian Fragnoli, Federica Indellicati, Chiara Parabita, Rosalinda Sanfrancesco, Giuseppe Branà, Luciana Ciocia, Annarita Curci, Domenico Guida, Pietro Fiorentino, Alba |
author_sort | Gregucci, Fabiana |
collection | PubMed |
description | Aim: To test inter-fraction reproducibility, intrafraction stability, technician aspects, and patient/physician’s comfort of a dedicated immobilization solution for Brain Linac-based radiation therapy (RT). Methods: A pitch-enabled head positioner with an open-face mask were used and, to evaluate inter- and intrafraction variations, 1–3 Cone-Beam Computed Tomography (CBCT) were performed. Surface Guided Radiation Therapy (SGRT) was used to evaluate intrafraction variations at 3 time points: initial (i), final (f), and monitoring (m) (before, end, and during RT). Data regarding technician mask aspect were collected. Results: Between October 2019 and April 2020, 69 patients with brain disease were treated: 45 received stereotactic RT and 24 conventional RT; 556 treatment sessions and 863 CBCT’s were performed. Inter-fraction CBCT mean values were longitudinally 0.9 mm, laterally 0.8 mm, vertically 1.1 mm, roll 0.58°, pitch 0.59°, yaw 0.67°. Intrafraction CBCT mean values were longitudinally 0.3 mm, laterally 0.3 mm, vertically 0.4 mm, roll 0.22°, pitch 0.33°, yaw 0.24°. SGRT intrafraction mean values were: i_, m_, f_ longitudinally 0.09 mm, 0.45 mm, 0.31 mm; i_, m_, f_ laterally 0.07 mm, 0.36 mm, 0.20 mm; i_, m_, f_ vertically 0.06 mm, 0.31 mm, 0.22 mm; i_, m_, f_ roll 0.025°, 0.208°, 0.118°; i_, m_, f_ pitch 0.036°, 0.307°, 0.194°; i_, m_, f_ yaw 0.039°, 0.274°, 0.189°. Conclusions: This immobilization solution is reproducible and stable. Combining CBCT and SGRT data confirm that 1 mm CTV-PTV margin for Linac-based SRT was adequate. Using open-face mask and SGRT, for conventional RT, radiological imaging could be omitted. |
format | Online Article Text |
id | pubmed-8709255 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-87092552021-12-25 Brain Linac-Based Radiation Therapy: “Test Drive” of New Immobilization Solution and Surface Guided Radiation Therapy Gregucci, Fabiana Bonaparte, Ilaria Surgo, Alessia Caliandro, Morena Carbonara, Roberta Ciliberti, Maria Paola Aga, Alberto Berloco, Francesco De Masi, Marina De Pascali, Christian Fragnoli, Federica Indellicati, Chiara Parabita, Rosalinda Sanfrancesco, Giuseppe Branà, Luciana Ciocia, Annarita Curci, Domenico Guida, Pietro Fiorentino, Alba J Pers Med Article Aim: To test inter-fraction reproducibility, intrafraction stability, technician aspects, and patient/physician’s comfort of a dedicated immobilization solution for Brain Linac-based radiation therapy (RT). Methods: A pitch-enabled head positioner with an open-face mask were used and, to evaluate inter- and intrafraction variations, 1–3 Cone-Beam Computed Tomography (CBCT) were performed. Surface Guided Radiation Therapy (SGRT) was used to evaluate intrafraction variations at 3 time points: initial (i), final (f), and monitoring (m) (before, end, and during RT). Data regarding technician mask aspect were collected. Results: Between October 2019 and April 2020, 69 patients with brain disease were treated: 45 received stereotactic RT and 24 conventional RT; 556 treatment sessions and 863 CBCT’s were performed. Inter-fraction CBCT mean values were longitudinally 0.9 mm, laterally 0.8 mm, vertically 1.1 mm, roll 0.58°, pitch 0.59°, yaw 0.67°. Intrafraction CBCT mean values were longitudinally 0.3 mm, laterally 0.3 mm, vertically 0.4 mm, roll 0.22°, pitch 0.33°, yaw 0.24°. SGRT intrafraction mean values were: i_, m_, f_ longitudinally 0.09 mm, 0.45 mm, 0.31 mm; i_, m_, f_ laterally 0.07 mm, 0.36 mm, 0.20 mm; i_, m_, f_ vertically 0.06 mm, 0.31 mm, 0.22 mm; i_, m_, f_ roll 0.025°, 0.208°, 0.118°; i_, m_, f_ pitch 0.036°, 0.307°, 0.194°; i_, m_, f_ yaw 0.039°, 0.274°, 0.189°. Conclusions: This immobilization solution is reproducible and stable. Combining CBCT and SGRT data confirm that 1 mm CTV-PTV margin for Linac-based SRT was adequate. Using open-face mask and SGRT, for conventional RT, radiological imaging could be omitted. MDPI 2021-12-12 /pmc/articles/PMC8709255/ /pubmed/34945823 http://dx.doi.org/10.3390/jpm11121351 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Gregucci, Fabiana Bonaparte, Ilaria Surgo, Alessia Caliandro, Morena Carbonara, Roberta Ciliberti, Maria Paola Aga, Alberto Berloco, Francesco De Masi, Marina De Pascali, Christian Fragnoli, Federica Indellicati, Chiara Parabita, Rosalinda Sanfrancesco, Giuseppe Branà, Luciana Ciocia, Annarita Curci, Domenico Guida, Pietro Fiorentino, Alba Brain Linac-Based Radiation Therapy: “Test Drive” of New Immobilization Solution and Surface Guided Radiation Therapy |
title | Brain Linac-Based Radiation Therapy: “Test Drive” of New Immobilization Solution and Surface Guided Radiation Therapy |
title_full | Brain Linac-Based Radiation Therapy: “Test Drive” of New Immobilization Solution and Surface Guided Radiation Therapy |
title_fullStr | Brain Linac-Based Radiation Therapy: “Test Drive” of New Immobilization Solution and Surface Guided Radiation Therapy |
title_full_unstemmed | Brain Linac-Based Radiation Therapy: “Test Drive” of New Immobilization Solution and Surface Guided Radiation Therapy |
title_short | Brain Linac-Based Radiation Therapy: “Test Drive” of New Immobilization Solution and Surface Guided Radiation Therapy |
title_sort | brain linac-based radiation therapy: “test drive” of new immobilization solution and surface guided radiation therapy |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8709255/ https://www.ncbi.nlm.nih.gov/pubmed/34945823 http://dx.doi.org/10.3390/jpm11121351 |
work_keys_str_mv | AT greguccifabiana brainlinacbasedradiationtherapytestdriveofnewimmobilizationsolutionandsurfaceguidedradiationtherapy AT bonaparteilaria brainlinacbasedradiationtherapytestdriveofnewimmobilizationsolutionandsurfaceguidedradiationtherapy AT surgoalessia brainlinacbasedradiationtherapytestdriveofnewimmobilizationsolutionandsurfaceguidedradiationtherapy AT caliandromorena brainlinacbasedradiationtherapytestdriveofnewimmobilizationsolutionandsurfaceguidedradiationtherapy AT carbonararoberta brainlinacbasedradiationtherapytestdriveofnewimmobilizationsolutionandsurfaceguidedradiationtherapy AT cilibertimariapaola brainlinacbasedradiationtherapytestdriveofnewimmobilizationsolutionandsurfaceguidedradiationtherapy AT agaalberto brainlinacbasedradiationtherapytestdriveofnewimmobilizationsolutionandsurfaceguidedradiationtherapy AT berlocofrancesco brainlinacbasedradiationtherapytestdriveofnewimmobilizationsolutionandsurfaceguidedradiationtherapy AT demasimarina brainlinacbasedradiationtherapytestdriveofnewimmobilizationsolutionandsurfaceguidedradiationtherapy AT depascalichristian brainlinacbasedradiationtherapytestdriveofnewimmobilizationsolutionandsurfaceguidedradiationtherapy AT fragnolifederica brainlinacbasedradiationtherapytestdriveofnewimmobilizationsolutionandsurfaceguidedradiationtherapy AT indellicatichiara brainlinacbasedradiationtherapytestdriveofnewimmobilizationsolutionandsurfaceguidedradiationtherapy AT parabitarosalinda brainlinacbasedradiationtherapytestdriveofnewimmobilizationsolutionandsurfaceguidedradiationtherapy AT sanfrancescogiuseppe brainlinacbasedradiationtherapytestdriveofnewimmobilizationsolutionandsurfaceguidedradiationtherapy AT branaluciana brainlinacbasedradiationtherapytestdriveofnewimmobilizationsolutionandsurfaceguidedradiationtherapy AT ciociaannarita brainlinacbasedradiationtherapytestdriveofnewimmobilizationsolutionandsurfaceguidedradiationtherapy AT curcidomenico brainlinacbasedradiationtherapytestdriveofnewimmobilizationsolutionandsurfaceguidedradiationtherapy AT guidapietro brainlinacbasedradiationtherapytestdriveofnewimmobilizationsolutionandsurfaceguidedradiationtherapy AT fiorentinoalba brainlinacbasedradiationtherapytestdriveofnewimmobilizationsolutionandsurfaceguidedradiationtherapy |