コンピューテッドラジオグラフィの特性曲線の測定(I)
書誌事項
- タイトル別名
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- Measurements of Characteristic Curves in a Computed Radiographic System (I)
説明
We measured the system response of a computed radiographic (CR) system with photostimulable phosphors (imaging plate: IP), as three different types of curves, which are the “digital” characteristic curve relating the output pixel value to the input relative x-ray intensity, the calibration curve relating the output photographic density to the input pixel value, and the “overall” characteristic curve relating the output density to the input relative x-ray intensity. The digital characteristic curves showed a considerably wider dynamic range (102.83) than that of the conventional screen-film system. However, this measured dynamic range was narrower than the nominal dynamic range (103.3) of the CR system. The measured sensitivity of the CR system, on the other hand, agreed with the nominal sensitivity. Calibration curve and overall characteristic curve were linear on the plot within the density range of approximately 0.4 to 2.64. These curves measured in our study are useful for quantitative analysis in a CR system.
収録刊行物
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- Medical Imaging and Information Sciences
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Medical Imaging and Information Sciences 5 (2), 52-59, 1988
Medical Imaging and Information Sciences
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詳細情報 詳細情報について
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- CRID
- 1390001205455463168
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- NII論文ID
- 130004647690
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- ISSN
- 09101543
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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
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
