Evaluation of Downtime of Linear Accelerators Installed at Radiotherapy Departments in the Czech Republic

Dufek, V.; Horakova, I.

doi:10.1007/978-981-10-9023-3_63

Cited by 1 publication

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our study showed that variations occurred in the DT ratio, cost of labor, and repair parts across machine types. These results are supported by a preceding study 21 . Dufek et al.…”

Section: Discussionsupporting

confidence: 91%

“…These results are supported by a preceding study. 21 Dufek et al analyzed the DT of linacs at 13 institutions. 21 They discovered variations in DT percentages across the institutions.…”

mentioning

confidence: 99%

“…21 Dufek et al analyzed the DT of linacs at 13 institutions. 21 They discovered variations in DT percentages across the institutions. Machine failures may depend on the introduction time of a machine or on an individual machine.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Formulation of objective indices to quantify machine failure risk analysis for interruptions in radiotherapy

Kawahara

Nakano

Saito

et al. 2020

J Applied Clin Med Phys

View full text Add to dashboard Cite

Objectives: To evaluate the effect of interruption in radiotherapy due to machine failure in patients and medical institutions using machine failure risk analysis (MFRA). Material and methods: The risk of machine failure during treatment is assigned to three scores (biological effect, B; occurrence, O; and cost of labor and repair parts, C) for each type of machine failure. The biological patient risk (BPR) and the economic institution risk (EIR) are calculated as the product of B and O (B Â O) and C and O (C Â O), respectively. The MFRA is performed in two linear accelerators (linacs).Result: The multileaf collimator (MLC) fault has the highest BPR and second highest EIR. In particular, TrueBeam has a higher BPR and EIR for MLC failures. The total EIR in TrueBeam was significantly higher than that in Clinac iX. The minor interlock had the second highest BPR, whereas a smaller EIR. Meanwhile, the EIR for the LaserGuard fault was the highest, and that for the monitor chamber fault was the second highest. These machine failures occurred in TrueBeam. The BPR and EIR should be evaluated for each linac. Further, the sensitivity of the BPR, it decreased with higher T 1=2 and α/β values. No relative difference is observed in the BPR for each machine failure when T 1=2 and α/β were varied. Conclusion:The risk faced by patients and institutions in machine failure may be reduced using MFRA.Advances in knowledge: For clinical radiotherapy, interruption can occur from unscheduled downtime with machine failures. Interruption causes sublethal damage repair. The current study evaluated the effect of interruption in radiotherapy owing to machine failure on patients and medical institutions using a new method, that is, machine failure risk analysis.

show abstract

“…Our study showed that variations occurred in the DT ratio, cost of labor, and repair parts across machine types. These results are supported by a preceding study 21 . Dufek et al.…”

Section: Discussionsupporting

confidence: 91%

“…These results are supported by a preceding study. 21 Dufek et al analyzed the DT of linacs at 13 institutions. 21 They discovered variations in DT percentages across the institutions.…”

mentioning

confidence: 99%