書誌事項
- タイトル別名
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- Feasibility of a New Initial Check-up Program for Medical X-ray and Computed Radiography Systems
- シンリョウヨウ Xセン サツエイ システム オヨビ CR システム ニ オケル カンベン ナ シギョウ テンケン プログラム ノ ヒョウカ
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抄録
We investigated the feasibility of a simple, easy method that uses a digital radiography (DR) phantom for daily operational checks of the medical X-ray system and computed radiography (CR) system. First, we measured exposure indicator calibration (S value) from 12 seconds to 11 minutes after irradiation to examine the effect of fading of the photostimulable phosphor screen. We then examined the management width of the exposure indicator calibration ratio and limiting resolution of the CR system. Finally, we studied the exposure indicator calibration ratio, limiting the resolution and time necessary for the initial check-up by running the program 20 times for five weeks. Under the influence of the fading, the S value increased gradually, although the level of variation was small. From the mean and coefficient of variation of the exposure indicator calibration ratio, the management width was determined as ±10%. The exposure indicator calibration ratio and limiting resolution were within ±10% and ±20%, respectively. It took three minutes to accomplish the initial check-up. The initial check-up using a DR phantom is simple and can perform the operational check of the medical X-ray system and the CR system with sufficient accuracy in only 3 minutes.
収録刊行物
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- 日本放射線技術学会雑誌
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日本放射線技術学会雑誌 65 (10), 1391-1399, 2009
公益社団法人 日本放射線技術学会
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詳細情報 詳細情報について
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- CRID
- 1390001206361627648
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- NII論文ID
- 10025977592
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- NII書誌ID
- AN00197784
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- ISSN
- 18814883
- 03694305
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- NDL書誌ID
- 10474753
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可