Biologically effective dose bed
WebJan 1, 2012 · The radiotherapeutic biologically effective dose (BED) received by each individual patient was calculated, as was the overall treatment time-adjusted BED (tBED) … WebThe LR and DM rates that we observed here may be attributable to several factors, including poor pulmonary function capacity, stage III or IV disease de novo tumors due to pulmonary recurrences or metastases, and because almost 40% of our patients received a biologically effective dose (BED) of <100 Gy. As the radiation dose is crucial for ...
Biologically effective dose bed
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WebApr 1, 2001 · The concept of biologically effective dose (BED) in particular is useful for quantifying treatment expectations, but clinical oncologists should recognize that careful … WebMar 1, 1999 · In 1998, mathematical modelling, which included RBE within biological effective dose (BED) equations, showed that neutrons would only be capable of improving clinical outcomes in the case of the ...
WebJul 5, 2024 · The intensive production of fossil fuels has led to serious polycyclic aromatic hydrocarbon (PAH) contamination in water and soil environments (as PAHs are typical types of emerging contaminants). Bio-Fenton, an alternative to Fenton oxidation, which generates hydrogen peroxide at a nearly neutral pH condition, could ideally work as a pretreatment … WebFeb 13, 2013 · The linear–quadratic model and the concept of biological effective dose (BED) is a frequently used clinical tool in external radiotherapy and brachytherapy to …
WebNov 1, 2024 · Biological effective dose (BED) distribution calculation is desirable for combining multiple treatments based on image sets at different times and/or with different fractionations, e.g., re-irradiation. In addition, the composite BED plan needs to be converted back to a physical dose plan in a common fractionation for plan evaluation … WebApr 1, 2001 · The concept of biologically effective dose (BED) in particular is useful for quantifying treatment expectations, but clinical oncologists should recognize that careful interpretation of modelling results is required before clinical decisions can be made and that there is a lack of reliable human parameters for application in some situations ...
WebApr 8, 2024 · The biologically effective dose, or BED, refers to the amount of a nutrient that is needed to reach a specific health outcome. This means that consuming enough of …
WebSep 1, 2000 · This is addressed by employing a radiobiological methodology, which is based on the linear quadratic model, to identify a biologically effective dose (BED) to the prescription point of the ... how many molecules in methaneWebFeb 11, 2024 · These fractionation schemes result in an enhanced biologically effective dose (BED), double-stranded DNA breaks, immunogenicity, and vascular supply disruption relative to conventional fractionation.17,18 Multiple patient series6-8 and a randomized phase 2 trial5 have shown that these biological differences translate into improved … how audio learners learnWebJan 28, 2014 · In 1989 the British Journal of Radiology published a review proposing the term biologically effective dose (BED), based on linear quadratic cell survival in … how aunty nansi reshuffled prospero\\u0027s booksWebJul 31, 2024 · Background: This study aims to establish lung biologically effective dose (BED)–based uniform dosimetric constraints for minimizing the risk of symptomatic radiation pneumonitis (SRP) from stereotactic … how a ukulele worksWebApr 21, 2024 · The Hounsfield Units (HU) of the CT-images were converted into relative electron density (3D-RED) and Dose maps into Biologically Effective Dose (3D-BED), respectively. Shape, first-order and textural features of 3D-RED and 3D-BED were calculated in the PTV and breast. Clinical and demographic variables were also … howa ultralightWebOct 1, 2024 · Based upon the linear-quadratic modeling of cell survival, the biologically effective dose (BED) takes into account the total dose of radiation delivered along with … how a ukulele soundsWebDec 23, 2024 · A mathematically processed subpart of LQS (n,D) is the biologically effective dose (BED) that is used for evaluating a so-called “biological dose.”. The … how a ultrasound works