Correlation of patient-specific QA systems between Delta4 and PerFRACTION for head and neck cancer with volumetric modulated arc therapy technique at Rajavithi Hospital

Authors

  • Wararat Prommoon Division of Radiation Therapy, Rajavithi Hospital, Department of Medicine Services, Ministry of Public Health, Bangkok, Thailand 10400

Keywords:

Patient-specific quality assurance, head and neck cancer, Pearson’s correlation, volumetric modulated arc therapy

Abstract

Introduction: Patient-specific quality assurance (PSQA) is essential for the Volumetric Modulated Arc Therapy (VMAT) plan. Objective: The objective of this study was to determine the correlation of gamma passing rate results between two PSQA tools, Delta4 and PerFRACTION, for head and neck cancer plans at Rajavithi Hospital. Materials and Methods: The gamma passing rate data of PSQA for head and neck cancer of 50 patients with Delta4 and PerFRACTION measurements from the Elekta Versa HD at 6 MV photon beam were collected. Results: The mean gamma passing rate and standard deviation by Delta4 were 98.01±1.09. The comparison results of Delta4 data with PerFRACTION, showed good, better, and best with the overall mean gamma passing rate of 96.86±0.90, 98.01±0.77, and 99.08±0.58, respectively. The Pearson’s correlation was 0.73 (p-value <0.01). Conclusion: The results from Delta4 and PerFRACTION demonstrate good agreement and correlation, confirming the compatibility of both PSQA systems.

Downloads

References

สาขารังสีรักษาและมะเร็งวิทยา โรงพยาบาลจุฬาลงกรณ์. หลักการรักษาด้วยรังสี.

International Commission on Radiation Units and Measurements. Prescribing, recording and reporting photon beam therapy. Washington (DC): International Commission on Radiation Units and Measurements 1993; Report 50.

International Commission on Radiation Units and Measurements. Prescribing, recording and reporting proton beam therapy. Bethesda (MD): International Commission on Radiation Units and Measurements 1999; Report 62.

Suzuki M, Nakamatsu K, Kanamori S, Okumra M, Uchiyama T, et al. Feasibility study of the simultaneous integrated boost (SIB) method for malignant gliomas using intensity modulated radiotherapy (IMRT). Jpn J ClinOnco.2003;33(6):271-277.

Wu Q, Mohan R, Morris M, Lauve A, Schmidt UR. Simultaneous integrated boost intensity modulated radiotherapy for locally advanced head and neck squamous cell carcinoma. I: dosimetric result. Int J RadiatOnco Biol Phys. 2003; 56(2):573-585.

Tang D, Yang Z, Dai X, Cao Y. Evaluation of Delta4DVH anatomy in 3D patient-specific IMRT/VMAT quality assurance. Technol Cancer Res T.2020;19:1-12.

Feygelman V, Forster K, Opp D, Nilsson G. Evaluation of biplanar diode array dosimeter for quality assurance of step and shoot IMRT. J of ApplClinMedPhys. 2009;10:64-78.

Zhuang AH, Olch AJ. Sensitivity study of an automated system for daily patient QA using EPID exit dose images. Rad Oncol Phys.2018; 19:114-124.

Khuanchana S. Analysis and assessing of radiotherapy service at the National Cancer Institute: productivity, infrastructure, and facilities. Thai J Rad Tech 2023;48(1):1-10.

Sokal RR, Rohlf FJ. Introduction to biostatistics, 2nd ed. New York: Dover Publication; 2009.

Kang SW, Lee B, Song C, Eeom KY, Jang BS, et al. Clinical implementation of PerFRACTION for pre-treatment patient-specific quality assurance. J Korean Phys Soc.2022; 80(6):516-525.

TJRT10-2024

Downloads

Published

2024-12-25

How to Cite

1.
Prommoon W. Correlation of patient-specific QA systems between Delta4 and PerFRACTION for head and neck cancer with volumetric modulated arc therapy technique at Rajavithi Hospital. Thai J Rad Tech [internet]. 2024 Dec. 25 [cited 2025 Mar. 27];49(1):95-102. available from: https://he02.tci-thaijo.org/index.php/tjrt/article/view/269996

Issue

Section

Original articles