Analysis of the dosimetric characteristics of normoxic polymer gel by magnetic resonance images

Sam Ju Cho, Su Jung Shim, Chul Yong Kim, Dae Sik Yang, Young Je Park, Suk Lee, Sang Hoon Lee, Sangwook Lim, Kwang Hwan Cho, Jin Ho Choi, Rena Lee

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A new type of polymer gel that eliminates the oxygen chemically instead of using complicated facilities was recently introduced. This study utilized a polymer gel fabricated in a laboratory as a reliable dosimeter for measuring therapeutic radiation. Studies on the optimal MR scan conditions was conducted. The reproducibility, the accuracy, and the dose rate dependency of the normoxic polymer gel dosimeter were evaluated. The relative dose uncertainty and the relative dose resolution of the polymer gel were also evaluated by scanning it under optimal MR scan conditions. The R2 calculated by using echo time (TE) of 20, 40, 60, 80, and 100 ms versus dose was linear for 12 ∼ 20 Gy. The polymer gel composed in this study can be used as a reliable dosimeter if it is scanned under optimal MR scan conditions.

Original languageEnglish
Pages (from-to)874-879
Number of pages6
JournalJournal of the Korean Physical Society
Volume56
Issue number3
DOIs
Publication statusPublished - 2010 Mar 15

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Keywords

  • Dosimetric characteristics
  • Magnetic resonance images
  • Normoxic polymer gel
  • Radiotherapy
  • Three-dimensional dosimetry

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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