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- W2157836970 abstract "We analysed the dose-volume distribution in normal brain in eight patients undergoing localized external beam radiotherapy for brain tumours. The results have been represented as integral dose-volume histograms and show that large volumes of normal brain receive clinically significant doses of radiation. A mean of 43% (range 24%-57%) of normal brain volume received more than 50% and a mean of 22% (range 9%-38%) received more than 85% of the maximum tumour dose. The amount of normal brain irradiated increased with enlarging target volume. With the use of customized shielding blocks the mean volume reduction of normal brain receiving more than 50% and 85% maximum tumour dose was 178 ml (median 183 ml; range 89-244 ml) and 110 ml (median 110 ml; 40-179 ml) respectively. This represents an average reduction of 13% and 8% of normal brain volume. Although clinically important this may not be sufficient for a significant improvement in therapeutic ratio." @default.
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- W2157836970 date "1990-11-01" @default.
- W2157836970 modified "2023-09-25" @default.
- W2157836970 title "Radiotherapy of brain tumours: Reduced irradiation of normal brain" @default.
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- W2157836970 doi "https://doi.org/10.1016/s0936-6555(05)80997-5" @default.
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