ＳＰＥＣＴ評価用ペーパーファントムの作製方法に関する検討

DOI Web Site 被引用文献1件 参考文献15件

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タイトル別名
  • Method of Creating a Paper Phantom for SPECT Evaluation
  • SPECT ヒョウカヨウ ペーパーファントム ノ サクセイ ホウホウ ニ カンスル ケントウ

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説明

Objective: The purpose of this study was to find a method of creating a paper phantom for SPECT evaluation. The method included preparing paper surface sources with an ink-jet printer and placing them evenly spaced apart. Methods: We prepared a paper surface source with the ink-jet printer fixed on an ink cartridge laced with 99mTc. We then set it and Styrofoam in turn, to develop a paper phantom for SPECT evaluation. The evaluation method was 1) accuracy evaluation of the paper surface source, 2) activity control, 3) pitch of the paper surface source, 4) activity concentration of ink, 5) spot phantom. Results: 1) accuracy was good, 2) activity control was possible, 3)% root mean square uncertainty (%RMSU) was equal to or less than 5% on average, when the pitch of the paper surface source did not exceed 10 mm. 4) The radioactivity concentration was radioactivity 9.7 kBq/cm2 of the paper surface source per radioactivity 37 MBq/ml of the ink. 5) We were able to create a spot phantom easily. Discussion: The pitch of the paper surface source must not exceed 10 mm to use a paper phantom for SPECT evaluation. This is a simple method to control activity density in phantom experiments.

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