A Review Study of Possible Errors in the Process of Dose Delivery of Intensity Modulated Radiation Therapy (IMRT)

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Khodabandeh Baygi Vida; RAFAT MOTAVALLI LALEH; Hoseinian Azghadi Elieh

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Journal Paper

Paper Information

Journal: Iranian Journal of Applied Physics Year:2021 | Volume:11 | Issue:1 (24) Page(s): 34-70

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Information Journal Paper

Title

A Review Study of Possible Errors in the Process of Dose Delivery of Intensity Modulated Radiation Therapy (IMRT)

Author(s)

Khodabandeh Baygi Vida | RAFAT MOTAVALLI LALEH | Hoseinian Azghadi Elieh | Issue Writer Certificate

Keywords

Intensity Modulated Radiation Therapy (IMRT)

Radiotherapy Errors

Quality Assurance (QA)

Gamma Index

Abstract

Intensity Modulated Radiation Therapy (IMRT) is one of the moderntechnologies of external radiotherapy, which underwent widespread clinicaladoption in medical centers. Modern radiotherapy makes use of new technologies in design, treatment, and delivery systems. However, despite theadvantages of IMRT compared to previous methods, Radiotherapy Errors are still an obstacle to achieving the desired dose distribution. In this paper, effective errors of the IMRT technique, together with the sensitivity ofdifferent quality assurance (QA) procedures in diagnosis are investigated andclassified. According to these studies, in addition to the importance of humanerrors in delivery and patient positioning, beam correction device errors areother most effective sources of delivery errors, responsible for 35% to 50% ofradiotherapy uncertainties. Thus, IMRT QA methods such as diode detectors, films, electronic portal images, log files, and artificial intelligence methodshave been used extensively to investigate the MLC leaf positioning errors. Moreover, uncertainties of treatment couch design and MLC modeling in TPSshould not be underestimated, since numerous studies have demonstrated thatvarious couch tops include non-negligible beam attenuation, ranging from 4%to 9% for a gantry angle of 0° . Whereas posterior oblique beams are often usedin the IMRT process. This article aims to highlight the importance ofrecognition and correction of radiotherapy uncertainties and reduce possibleaccidents during an IMRT process by precisely knowing various IMRT QAprocedures.

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APA: Copy

Khodabandeh Baygi, Vida, RAFAT MOTAVALLI, LALEH, & Hoseinian Azghadi, Elieh. (2021). A Review Study of Possible Errors in the Process of Dose Delivery of Intensity Modulated Radiation Therapy (IMRT). IRANIAN JOURNAL OF APPLIED PHYSICS, 11(1 (24) ), 34-70. SID. https://sid.ir/paper/412950/en

Vancouver: Copy

Khodabandeh Baygi Vida, RAFAT MOTAVALLI LALEH, Hoseinian Azghadi Elieh. A Review Study of Possible Errors in the Process of Dose Delivery of Intensity Modulated Radiation Therapy (IMRT). IRANIAN JOURNAL OF APPLIED PHYSICS[Internet]. 2021;11(1 (24) ):34-70. Available from: https://sid.ir/paper/412950/en

IEEE: Copy

Vida Khodabandeh Baygi, LALEH RAFAT MOTAVALLI, and Elieh Hoseinian Azghadi, “A Review Study of Possible Errors in the Process of Dose Delivery of Intensity Modulated Radiation Therapy (IMRT),” IRANIAN JOURNAL OF APPLIED PHYSICS, vol. 11, no. 1 (24) , pp. 34–70, 2021, [Online]. Available: https://sid.ir/paper/412950/en

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