Evaluation of patient specific pre - treatment quality assurance test for head and neck cancer based on a trajectory log file and measurement on EPID

Downloads

Download data is not yet available.
PDF (Tiếng Việt)     33    16

Abstract

For the clinical implementation of a new technique, it is necessary to check the dose calculated by the dose calculation algorithm. The Intensity - modulated radiotherapy (IMRT) technique makes isodoses conform to tumour volume and reduces the dose to the organ at risk (OAR), there are increasing the complexity of it. The purpose of the paper is based on the sensitivity of the Trajectory log file to patient - specific pre - treatment quality assurance test and detecting the leaf position errors of Multileaf collimator (MLC), the gantry angle error, the collimator angle error that are the parameters obtained from the Trajectory log file. Comparing the results of patient - specific quality assurance of accepting the plan between built by Trajectory log file and treatment planning system (TPS) with the results of accepting the plan measured by an electronic portal imaging device (EPID) and TPS in the same tolerance criteria ∆DM/DdM (3%/3mm).

https://doi.org/10.38103/jcmhch.2020.66.14

References

TrueBeam System Specifications.

TrueBeam Trajectory Log File Specification.

Pylinac - pylinac 2.3.2 documentation. https:// Plinac.Readthedocs.Io/En/Stable/.

Zaila, A., Adili, M., & Bamajboor, S. Pylinac: A toolkit for performing TG-142 QA related tasks on linear accelerator. Physica Medica, 32, (2016), 292-293.

Low, D. A., Harms, W. B., Mutic, S., & Purdy, J. A. A technique for the quantitative evaluation of dose distributions. Medical Physics, 25(5), (1998), 656-661.

Bakai, A., Alber, M., & Nüsslin, F. A revision of the evaluation concept for the comparison of dose distributions. Physics in Medicine and Biology, 48(21), (2003), 3543-3553

Schreiner, L. J., Holmes, O., & Salomons, G. Analysis and evaluation of planned and delivered dose distributions: practical concerns with γ- and χ- Evaluations. Journal of Physics: Conference Series, 444, (2013), 012016

Hernandez, V., Abella, R., Calvo, J. F., Jurado Bruggemann, D., Sancho, I., & Carrasco, P. Determination of the optimal tolerance for MLC positioning in sliding window and VMAT techniques. Medical Physics, 42(4), (2015), 1911- 1916.

Litzenberg, D. W., Moran, J. M., & Fraass, B. A. Incorporation of realistic delivery limitations into dynamic MLC treatment delivery. Medical Physics, 29(5), (2002), 810- 820.

Klein, E. E., Hanley, J., Bayouth, J., Yin, F.-F., Simon, W., Dresser, S., Serago, C., Aguirre, F., Ma, L., Arjomandy, B., Liu, C., Sandin, C., & Holmes, T. Task Group 142 report: Quality assurance of medical accelerators. Medical Physics, 36(9Part1), (2009), 4197-4212.

Alonso, J. O., Gago, P., Vazquez, A., Pellejero, S., Eito, C., Aylas, M., & Ensunza, P. EP-1922: Comparing MLC positioning errors in Clinac and Truebeam Linacs by analyzing log files. Radiotherapy and Oncology, 119, (2016), 912.

Litzenberg, D. W. Verification of dynamic and segmental IMRT delivery by dynamic log file analysis. Journal of Applied Clinical Medical Physics, 3(2), (2002),63.

Woon, W. A., Ravindran, P. B., Ekanayake, P., Vikraman, S., Amirah, S., Lim, Y. 2. Y. F., Vun, C. H. S., & Khalid, J. Trajectory log file sensitivity: A critical analysis using DVH and EPID. Reports of Practical Oncology & Radiotherapy, 23(5), (2018), 346-359.

Sun, B., Rangaraj, D., Yang, D., Kashani, R., Pereira, G., Goddu, S. M., Yaddanapudi, S., Moore, K., Mutic, S., & Santanam, L. Automatic Patient Specific Verification Of Treatment Plan Delivery On A Varian Truebeam. International Journal of Radiation Oncology*Biology*Physics, 81(2), (2011), 896.

Rangaraj, D., Zhu, M., Yang, D., Palaniswaamy, G., Yaddanapudi, S., Wooten, O. H., Brame, S., & Mutic, S. Catching errors with patient-specific pretreatment machine log file analysis. Practical Radiation Oncology, 3(2), (2013). 80-90.

Published 21-12-2020
Fulltext
PDF (Tiếng Việt)     33    16
Language
Issue No. 66 (2020)
Section Review
DOI 10.38103/jcmhch.2020.66.14
Keywords Trajectory log file, IMRT plan QA, Pylinac Trajectory log file, IMRT plan QA, Pylinac

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Copyright (c) 2025 Journal of Clinical Medicine Hue Central Hospital

Nhon, T. H., Hieu, N. T., & Tu, L. A. (2020). Evaluation of patient specific pre - treatment quality assurance test for head and neck cancer based on a trajectory log file and measurement on EPID. Journal of Clinical Medicine Hue Central Hospital, (66), 95–104. https://doi.org/10.38103/jcmhch.2020.66.14