Comparison of the isocenter verification methods and calculating imaging offset of medical linear accelerators.

Olga Bąk; Katarzyna Świątek; Marta Paluszyńska

doi:10.21641/los.2022.19.2.229

Vol. 19 No. 2 (2022), Articles

Vol. 19 No. 2 (2022)

Comparison of the isocenter verification methods and calculating imaging offset of medical linear accelerators.

Articles

https://doi.org/10.21641/los.2022.19.2.229

Published 14-12-2022

Olga Bąk⁺⁻
Katarzyna Świątek⁺⁻
Marta Paluszyńska⁺⁻

Olga Bąk

Zakład Fizyki Medycznej, Wielkopolskie Centrum Onkologii, Poznań, Polska

https://orcid.org/0000-0003-0644-0341

Katarzyna Świątek

Zakład Fizyki Medycznej, Wielkopolskie Centrum Onkologii, Poznań, Polska

Marta Paluszyńska

Zakład Fizyki Medycznej, Wielkopolskie Centrum Onkologii, Poznań, Polska

https://orcid.org/0000-0003-4360-0586

PDF (Język Polski)

Keywords

MPC
PTW Isoball Phantom
isocentre
IsoCal
Artiscan

How to Cite

Bąk, O., Świątek, K., & Paluszyńska, M. (2022). Comparison of the isocenter verification methods and calculating imaging offset of medical linear accelerators. Letters in Oncology Science, 19(2). https://doi.org/10.21641/los.2022.19.2.229

Abstract

The aim of the presented work was to compare two methods of verification of the medical accelerator’s isocenter and determine the imaging offset. Two methods were used for verification - Machine Performence Check (MPC) application with the IsoCal phantom and the Artiscan software with the PTW Isoball Phantom. Each of the analyzed methods provides an alternative way to the time-consuming and costly verification of the isocenter on radiochromic or gafchromic dosimetry films.

Measurements were performed for ten days and the obtained data were compared for both methods. Using statistical tests, concordance was determined for the results obtained by the two methods. The data were presented in trend function graphs.

Analysis of the results shows that it is not possible to unequivocally state that the methods are not equivalent. In addition, the AAPM TG 142 report assumes that MPC is not a sufficient test for checking medical linear accelerator’s isocentre.

https://doi.org/10.21641/los.2022.19.2.229

PDF (Język Polski)

References

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

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Comparison of the isocenter verification methods and calculating imaging offset of medical linear accelerators.

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