Examination of formula for enhanced dynamic wedge factors in symmetric and asymmetric fields

Tomoharu Sato, Nobuhide Tachibana, Takashi Hanada, Nozomi Kitamura, Yuuko Ootomo, Masaru Nakajima, Shinichi Yoshino, Satoko Ishikawa, Teruo Ito, Takeo Hashimoto, Masaharu Kimura, Minoru Yoshioka

研究成果: Article査読

抄録

We proposed a formula for the enhanced dynamic wedge (EDW) factor in the half-field (HF) that combined the formula proposed by Liu et al. in 1998 and their formula in 2003. When the EDW was used for irradiation to the tangent line of the HF breast, the values calculated by our formula and the measured values were consistent within 0.5%. We showed that our proposed formula was useful, easy to use, and more accurate than the conventional formula. The purpose of this study was to examine the available range of the wedge factor of symmetrical and asymmetric EDW calculated by our formula. As a result of the examination, the values calculated by our formula and the measured values were consistent within 2% except for highly asymmetric EDW. We created a spreadsheet to calculate the wedge factor easily and accurately. We will examine the reason why the calculated and measured values were greater than 2%, and improve our formula so that it can be used in a wider range.

本文言語English
ページ(範囲)1690-1696
ページ数7
ジャーナルNippon Hoshasen Gijutsu Gakkai zasshi
62
12
DOI
出版ステータスPublished - 2006 12 20
外部発表はい

ASJC Scopus subject areas

  • Medicine(all)

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