MU QC
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About MU QC
OBJECTIVE
The objective of development the mobile App MU QC is provide an independent Monitor Units verification tool to ensure adequate accuracy, safety and effectiveness of patient treatment. This App also is available for everyone in the chain of treatment of radiotherapy patient, so as to multiply those involved in the quality control process of treatment. The mobile App use standard dosimetric data published, so this App also allows to compare the dosimetric data acquired by the user, and the correct therapy planning system commissioning.
Because the App can generate a report with the dosimetric parameters used and the deviations found between the TPS's MUs and the MU from the App, MU QC can be easily integrated to a Quality Assurance program of any institution.
CALCULATION FORMALISM
The Calculation Formalism and the dosimetric data comes from 258 AAPM report published in 2014 by Task Group 71. This is a protocol for Monitor Unit calculation for photon and electron beams, delivered with and without beam modifiers, for constant source-surface distance (SSD) and source-axis distance (SAD) setups. In this protocol highlights the definition of D′o representing the dose per monitor unit under normalization conditions. For photons, this protocol recommended to choose the depth of normalization do = 10 cm, due to its clinical relevance.
https://www.aapm.org/pubs/reports/RPT_258.pdf
The Enhanced Dynamic Wedge output factors comes from the Dr. Christopher F. Njeh paper:
Enhanced dynamic wedge output factors for Varian 2300CD and the case for a reference database. J Appl Clin Med Phys, Vol 16, No 5 (2015). http://www.jacmp.org/index.php/jacmp/article/download/5498/pdf_353
The Tolerances uses in MU QC comes from 114 AAPM report published in 2011:
Verification of monitor unit calculations for non-IMRT clinical radiotherapy: Report of AAPM Task Group 114 Medical Physics, Vol 38, Issue 1. https://www.aapm.org/pubs/reports/RPT_114.pdf
DO YOU WANT TO IMPROVE YOUR RESULTS?
We recommend to use the radiological depth or water equivalent distance, extracted from the therapy planning system for each field to improve your results. The current MU QC version does not has yet enough accuracy for very asymmetric fields or very blocked fields.
MY OWN DATA
Do you want to use your own dosimetric data with MU QC?
Please contact us.
MSc. Franklyn Reggio
https://ve.linkedin.com/in/franklyn-reggio-b469b1124
MSc. Jugleys Seijas
https://ve.linkedin.com/in/jugleys-seijas-a5111499
This development has been introduced in September 2016, at the 7th Latin American Congress of Medical Physics (ALFIM) in Argentina. http://www.alfim2016.com/es/
The objective of development the mobile App MU QC is provide an independent Monitor Units verification tool to ensure adequate accuracy, safety and effectiveness of patient treatment. This App also is available for everyone in the chain of treatment of radiotherapy patient, so as to multiply those involved in the quality control process of treatment. The mobile App use standard dosimetric data published, so this App also allows to compare the dosimetric data acquired by the user, and the correct therapy planning system commissioning.
Because the App can generate a report with the dosimetric parameters used and the deviations found between the TPS's MUs and the MU from the App, MU QC can be easily integrated to a Quality Assurance program of any institution.
CALCULATION FORMALISM
The Calculation Formalism and the dosimetric data comes from 258 AAPM report published in 2014 by Task Group 71. This is a protocol for Monitor Unit calculation for photon and electron beams, delivered with and without beam modifiers, for constant source-surface distance (SSD) and source-axis distance (SAD) setups. In this protocol highlights the definition of D′o representing the dose per monitor unit under normalization conditions. For photons, this protocol recommended to choose the depth of normalization do = 10 cm, due to its clinical relevance.
https://www.aapm.org/pubs/reports/RPT_258.pdf
The Enhanced Dynamic Wedge output factors comes from the Dr. Christopher F. Njeh paper:
Enhanced dynamic wedge output factors for Varian 2300CD and the case for a reference database. J Appl Clin Med Phys, Vol 16, No 5 (2015). http://www.jacmp.org/index.php/jacmp/article/download/5498/pdf_353
The Tolerances uses in MU QC comes from 114 AAPM report published in 2011:
Verification of monitor unit calculations for non-IMRT clinical radiotherapy: Report of AAPM Task Group 114 Medical Physics, Vol 38, Issue 1. https://www.aapm.org/pubs/reports/RPT_114.pdf
DO YOU WANT TO IMPROVE YOUR RESULTS?
We recommend to use the radiological depth or water equivalent distance, extracted from the therapy planning system for each field to improve your results. The current MU QC version does not has yet enough accuracy for very asymmetric fields or very blocked fields.
MY OWN DATA
Do you want to use your own dosimetric data with MU QC?
Please contact us.
MSc. Franklyn Reggio
https://ve.linkedin.com/in/franklyn-reggio-b469b1124
MSc. Jugleys Seijas
https://ve.linkedin.com/in/jugleys-seijas-a5111499
This development has been introduced in September 2016, at the 7th Latin American Congress of Medical Physics (ALFIM) in Argentina. http://www.alfim2016.com/es/
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