| Autor: |
Athiyaman M, Hemalatha A, Mary Joan, ARUN CHOUGULE, kumar HS, Gokul Raj |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Iranian Journal of Medical Physics, Vol 21, Iss 2, Pp 121-129 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2345-3672 |
| DOI: |
10.22038/ijmp.2023.63585.2086 |
| Popis: |
Introduction: In the present scenario, high precision-radiotherapy is delivered through Linear accelerators in which the dose delivery is achieved by delivering the proper monitor unit (MU). Treatment planning for the patients is carried out through treatment planning systems (TPS) in which the precise computation of MU is crucial. This TPS - calculated MU has to be verified using manual calculations for accurate dose delivery. In this study, we incorporated our in-house developed multi leaf collimator(MLC) shaper software and the well-known Clarkson method to compare the calculated MUs to the TPS-generated MUs.Material and Methods: Conformal treatment plans of various sites of 30 patients were randomly selected containing different MLC-shaped field sizes. All the fields were shaped using MLC (leaf width of 1cm, 40 pairs) in the TPS. MLC log files were exported and fed into the in-house shaper software to get crucial inputs for the Clarkson-based calculation. The Tissue Maximum Ratio(TMR) & Scatter Maximum ratio(SMR) were utilized in our investigation. The Clarkson MU calculation was compared with the TPS calculation method. Paired t-test was performed for the statistical significance.Results: The Clarkson method-based calculated had significant differences for all the esophageal cancers (p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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