Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8919577 | Physics and Imaging in Radiation Oncology | 2018 | 4 Pages |
Abstract
An audit methodology was developed and applied for output factor (OF) calculations in radiotherapy. The auditees were asked to calculate OFs for field sizes from 10â¯Ãâ¯10â¯cm2 to 2â¯Ãâ¯2â¯cm2. Sixty five beams were audited; missing reference OFs were interpolated. The calculated OFs were in 73% of cases higher than the reference data. The smaller the field size, the higher the overestimations which were observed in the higher fraction of cases. Treatment planning systems generally overestimated OFs for small fields. The reference dataset helped radiotherapy centres to identify discrepancies which were higher than typical.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
Krzysztof CheÅmiÅski, Wojciech Bulski,