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Comparative study of dose distribution between carbon ion radiotherapy and photon radiotherapy for head and neck tumor
https://repo.qst.go.jp/records/45320
https://repo.qst.go.jp/records/4532008470549-f792-4843-b577-5471bea8f3cf
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2008-11-18 | |||||
| タイトル | ||||||
| タイトル | Comparative study of dose distribution between carbon ion radiotherapy and photon radiotherapy for head and neck tumor | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Islam, Amirul
× Islam, Amirul× Yanagi, Takeshi× Mizoe, Junetsu× Mizuno, Hideyuki× Tsujii, Hirohiko× 柳 剛× 溝江 純悦× 水野 秀之× 辻井 博彦 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Purpose: A comparative treatment planning study has been performed between carbon ion radiotherapy (CIRT) and photon radiotherapy [three-dimensional conformal radiotherapy (3D-CRT) and intensitymodulated radiotherapy (IMRT)] to assess the potential improvements and limitations that could result for locally advanced, nonresectable head and neck tumors. Materials and methods: Seven patients, originally treated with CIRT, were randomly selected for the comparative study. The evaluations analyzed using dose-volume histogram parameters, conformity index, inhomogeneity coefficient, and dose to the organs at risk (OARs). Results: The mean conformity index was 1.46,1.43,and 1.22 for 3D-CRT, IMRT,and CIRT, respectively. The mean inhomogeneity coefficient was 0.05,0.07,and 0.02 for 3D-CRT, IMRT,and CIRT respectively. Photon plans resulted in greater volumes of normal tissues at 10% to 95% isodose levels compared with the corresponding carbon ion plans where the volumes increased by a factor of 1.2 to 2.7 for 3D-CRT and 1.2 to 2.0 for IMRT. Conclusion: CIRT has the potential to improve the target dose conformity inhomogeneity coefficient, and OAR sparing when compared with 3D-CRT and IMRT. Compared with 3D-CRT, normal tissue exposure was reduced mainly in the mid-to low-isodose levels using IMRT. Additional improvement was obtained using CIRT. |
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| 書誌情報 |
Radiation Medicine 巻 26, 号 7, p. 415-421, 発行日 2008-08 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0288-2043 | |||||
