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- W2013327157 abstract "Purpose: The ICRU 50 has defined the concept of planning target volume (PTV) to include the combined volumes of gross disease, suspected extension of microscopic disease and the dosimetric uncertainties due to setup error and isodose constriction. Cerrobend block outlines are designed to meet these criteria. Concern exists that multileafcollimator (MLC) conformation strategies may require different margins to meet these criteria. Several MLC geometric blocking strategies are readily accessible and are currently employed. We examined two commonly used strategies for MLC conformation to the PTV. The first conforms the leaves such that the total area of overshoot and undershoot is minimized resulting in least area discrepancy (LAD). The second conforms the MLC such that the areas of overshoot and undershoot are equivalent and has been termed “transecting” (TRN). The goal of this study was to evaluate dosimetrically these MLC conformation schemes for irregular fields using cerrobend block as a comparison." @default.
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- W2013327157 date "1994-01-01" @default.
- W2013327157 modified "2023-09-27" @default.
- W2013327157 title "Dosimetric evaluation of two multileaf collimator conformation strategies for irregular fields" @default.
- W2013327157 doi "https://doi.org/10.1016/0360-3016(94)90645-9" @default.
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