Online ISSN: 1884-4111 Print ISSN: 0033-8303
Radioisotopes 66(11): 595-600 (2017)

特集Special Issues

25 放射線治療のための3次元ゲル線量計の開発と臨床応用25 Development and Clinical Application of Three-dimensional Gel Dosimeter for Radiotherapy Treatment

広島国際大学保健医療学部Faculty of Health Sciences, Hiroshima International University ◇ 739–2695 東広島市黒瀬学園台555–36 ◇ 555–36 Kurosegakuendai, Higashihiroshima-shi, Hiroshima Pref. 739–2695, Japan

発行日:2017年11月15日Published: November 15, 2017


With rapid advances being made in radiotherapy treatment, three-dimensional (3D) dose measurement techniques of great precision are required more than ever before. It is expected that 3D gel dosimeters will satisfy clinical needs for an effective detector that can measure the complex 3D dose distributions. They are devices that utilize the radiation-induced chemical reactions of radiosensitive (radiochromic) molecules or ions in a gel to store information about radiation dose. The 3D absorbed dose distribution can be deduced from the resulting product distribution using several imaging modalities, such as MRI, X-ray and optical CTs. In this article, the fundamental characteristics and an application of 3D gel dosimeters are reviewed.

Key words: three-dimensional gel dosimetry; polymer gel dosimeter; Fricke gel dosimeter; dye gel dosimeter; radiotherapy; MRI; IMRT

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