A Novel Algorithm in Radiation Dosimetry of Regular and Irregular Treatment Fields.
Dose-calculation algorithm
monitor unit calculation
regular and irregular treatment fields
Journal
Advanced biomedical research
ISSN: 2277-9175
Titre abrégé: Adv Biomed Res
Pays: India
ID NLM: 101586897
Informations de publication
Date de publication:
2019
2019
Historique:
entrez:
17
9
2019
pubmed:
17
9
2019
medline:
17
9
2019
Statut:
epublish
Résumé
The aim of this study was to design an algorithm for the calculation of monitor unit (MU) in a short time and high precision for different radiotherapy (RT) fields. The algorithm for calculating MU for the stated patients was designed in MATLAB software. To investigate the efficiency of this algorithm, 11 regular chest fields with the sizes of 7 cm × 7 cm up to 17 cm × 17 cm were considered, and the obtained MUs were compared with MUs of 13 patients which were calculated with a "hand calculation" which is used in some RT centers for the aforementioned fields. The maximum percentage of calculation errors of regular fields at the depths of 4 and 10 cm were 1 and 0.8, respectively. The maximum and minimum percentage of calculation errors in irregular fields was 3 and 0.9, respectively. Furthermore, the maximum and minimum errors were 8.8 and 0.14, respectively. In addition, relative percentages of the MUs for irregular fields of chest and supraclavicular were 1.63 and 1.01, respectively. Calculation of MUs is suggested to be performed with the novel proposed algorithm, due to reduce the treatment time, and also provide high accuracy and precision compared to hand calculation.
Sections du résumé
BACKGROUND
BACKGROUND
The aim of this study was to design an algorithm for the calculation of monitor unit (MU) in a short time and high precision for different radiotherapy (RT) fields.
MATERIALS AND METHODS
METHODS
The algorithm for calculating MU for the stated patients was designed in MATLAB software. To investigate the efficiency of this algorithm, 11 regular chest fields with the sizes of 7 cm × 7 cm up to 17 cm × 17 cm were considered, and the obtained MUs were compared with MUs of 13 patients which were calculated with a "hand calculation" which is used in some RT centers for the aforementioned fields.
RESULTS
RESULTS
The maximum percentage of calculation errors of regular fields at the depths of 4 and 10 cm were 1 and 0.8, respectively. The maximum and minimum percentage of calculation errors in irregular fields was 3 and 0.9, respectively. Furthermore, the maximum and minimum errors were 8.8 and 0.14, respectively. In addition, relative percentages of the MUs for irregular fields of chest and supraclavicular were 1.63 and 1.01, respectively.
CONCLUSION
CONCLUSIONS
Calculation of MUs is suggested to be performed with the novel proposed algorithm, due to reduce the treatment time, and also provide high accuracy and precision compared to hand calculation.
Identifiants
pubmed: 31523665
doi: 10.4103/abr.abr_238_18
pii: ABR-8-46
pmc: PMC6683408
doi:
Types de publication
Journal Article
Langues
eng
Pagination
46Déclaration de conflit d'intérêts
There are no conflicts of interest.
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