| 昝志生,秦维昌,亓恒涛,魏忠舜,冯德朝.CR、DR系统低密度信号检出能力比较[J].中华放射医学与防护杂志,2006,26(6):617-618 |
| CR、DR系统低密度信号检出能力比较 |
| Comparison of low-density signal detection between CR and DR systems |
| 投稿时间：2006-01-10 |
| DOI： |
| 中文关键词: 计算机X线摄影 数字X线摄影 检出能力 |
| 英文关键词:Computed radiography Digital radiography Detection capability |
| 基金项目: |
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| 摘要点击次数: 2914 |
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| 中文摘要: |
| 目的 比较CR、DR系统的低密度信号分辨能力。方法 采用Burger's模板、20mm铝板、0.5mm铜板、RTISolidose400数字剂量计、PMX-IR千伏时间计及CPI高频高压发生器,在同一X线机,相同吸收体,相同曝光条件(剂量)下,比较CR、DR的低密度信号检出能力。结果 CR系统的低密度信号检出能力比DR系统低6.5%。结论 CR系统的低密度信号检出能力略低于DR系统(非晶硒平板检测器)。 |
| 英文摘要: |
| Objective To compare the low-density signal detection between CR and DR systems. Methods Burger's phantom (Kyoto Scientific Corporation), 20 mm aluminium plate (RPM X-QA, Beijing Institute of Radiation Medicine), 0.5 mm copper plate, RTI Solidose 400 digital dosimeter, PMX-IR kV-time meter, and CPI high-frequency generator were applied to compare the low density signal detection between CR and DR systems for the same X-ray machine, absorber and exposed dose. Results The low-density signal detection capability is 6.5% less than that of the DR system. Conclusions CR system is inferior to DR system (amorphous selenium flat plate panels) in low-density signal detection. |
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