強度変調放射線治療におけるｒａｄｉｏｇｒａｐｈｉｃ　ｆｉｌｍと　ｒａｄｉｏｃｈｒｏｍｉｃ　ｆｉｌｍの比較評価

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  • Comparison of Dose Distribution on Radiographic Film and Radiochromic Film for Intensity Modulated Radiation Therapy
  • 臨床技術 強度変調放射線治療におけるradiographic filmとradiochromic filmの比較評価
  • リンショウ ギジュツ キョウド ヘンチョウ ホウシャセン チリョウ ニ オケル radiographic film ト radiochromic film ノ ヒカク ヒョウカ

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Purpose: Radiographic film is generally used for inspection of dose distribution in intensity modulated radiation therapy (IMRT) at many institutions. However, the distribution of filmless systems can be expected to be used increasingly in the future. Therefore, we confirmed the utility of radiochromic film by comparing it with radiographic film that does not need an automatic processor. Result: Difference in does measured by radiographic film and radiochromic film tended to increase in the low does area, but it was limited in a range of 1.5%. Conclusion: When the dose distribution was verified in a highly accurate radiation therapy such as IMRT, the results suggested that radiochromic film can be useful in addition to radiographic film.

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