SU-F-BRD-15: The Impact of Dose Calculation Algorithm and Hounsfield Units Conversion Tables On Plan Dosimetry for Lung SBRTLungsDosimetryIntensity modulated radiation therapyTissuesMultileaf collimatorsEclipsesPurpose: To assess dosimetric differences in IMRT lung stereotactic body radiotherapy (SBRT) plans...
This allows the application of one density conversion table independent of imaging preset, geometry, and patient anatomy, for standard clinical cases (in particular predominantly water equivalent tissue and low artefact disturbance). Dose calculation in the TPS (Radiance) uses a Monte Carlo algorithm ...
It was found that the radon progeny and the equilibrium factor depend largely on the environmental conditions, which may results in the variation in dose calculation. The large varia- tion in measured values of equilibrium factor suggests that while calculating the radiation dose due to the expo-...
To learn more about drug dosage calculation formula and drug half-life, visit Omni dosage calculator and drug half life calculator, respectively. How to calculate the hydroxychloroquine dose? The maximum dose of hydroxychloroquine reported in the 2016 Ophthalmology guidelines is 5 mg/kg. Our hydroxych...
In addition, bootstrapping with 2000 replications and grouping for study sites was applied for the calculation of regression coefficients and 95% confidence intervals (CIs) for each covariate in the model, as well as for model calibration and validation.13 Due to the lack of normal distribution...
Table 1 Broad structure of the raw data sources used. Full size table A schematic overview of the processes involved in the creation of DOSE17is presented in Fig.1and a detailed description can be found in the Methods section. Annual, sub-national economic data were collected from various sou...
The reason for why the time difference in the process in the dose prediction of the two models was large is that Rp spends a large amount of time on MLC (multi leap collimator) optimization and final dose calculation. On the other hand, in the case of Dp, dose prediction is possible in...
TABLE 1. Example of a set of conversion factors (normalized effective dose per dose length product in mSv per mGy cm) for pediatric and adult patients adapted from refs.26,27,31,38 AgeHeadNeckChestAbdomen/Pelvis Neonate 0.027/0.013 0.017 0.034 0.049 1 y 0.009 0.012 0.026 0.030 5 y 0.006 ...
Calculation obtained with FLUKA. Table 2 reports the values obtained in this work with FLUKA for electrons and positrons, as well as from (ICRP116, 2010) and (BOURGOIS, 2016). The ratios are in the range [0.89–1.15] with the ICRP values (for electrons) and [0.81–1.09] with the ...
This resulted in a large difference in the calculation time between the high and low resolution CBCTs. Table 5 Computation time (seconds) of six FDK algorithms when creating high resolution and low resolution CBCTs of the Catphan503 phantom. Full size table Figure 7 shows the proposed method ...