Workload of breast image-guided intensity-modulated radiotherapy delivered with TomoTherapy

R. Ricotti, E. Miglietta, M. Leonardi, F. Cattani, S. Dicuonzo, D. P. Rojas, G. Marvaso, R. Orecchia, B. Jereczek-Fossa
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引用次数: 2

Abstract

Objective: To report treatment times (door to door) of adjuvant treatments of breast cancer (BC) with intensity-modulated radiotherapy (IMRT). Methods: Treatment times of 62 patients with BC on the TomoTherapy Hi-Art System were collected for the analysis. Patients underwent either locoregional radiotherapy (postmastectomy radiotherapy [PMRT]) with helical modality (TomoHelical) or whole breast radiotherapy (RT) with simultaneous integrated boost (WBRT-SIB) with direct modality (TomoDirect). Door-to-door time was broken down into different steps, which were crucial to RT session. Results: A total of 594 treatment fractions were monitored. Median treatment time was 22.4 minutes (17.2–30.8) for PMRT and 14.4 minutes (10.9–23.5) for WBRT-SIB. The mean beam-on time accounted for 61.36% of the overall treatment time for PMRT compared to 57% for WBRT-SIB. The beam-on time was a much more time-consuming process. Conclusion: This treatment times analysis on the use of IMRT for BC might be useful to organize and improve the workflow efficiency in RT facilities.
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乳房影像引导调强放疗与TomoTherapy的工作量
目的:报告调强放疗(IMRT)辅助治疗乳腺癌(BC)的治疗次数(门到门)。方法:收集62例BC患者在TomoTherapy Hi-Art系统上的治疗次数进行分析。患者接受局部局部放疗(乳房切除术后放疗[PMRT])螺旋模式(tomohelix)或全乳放疗(RT)同步综合增强(WBRT-SIB)直接模式(TomoDirect)。挨家挨户的时间被分解成不同的步骤,这对RT会话至关重要。结果:共监测了594个治疗部位。PMRT的中位治疗时间为22.4分钟(17.2-30.8),WBRT-SIB的中位治疗时间为14.4分钟(10.9-23.5)。PMRT的平均照射时间占总治疗时间的61.36%,而WBRT-SIB的这一比例为57%。发射时间是一个更耗时的过程。结论:IMRT治疗BC的时间分析可能有助于组织和提高RT机构的工作效率。
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