| 魏宗源,张启馨,章于平,周惠生,郭彦林,宗西源,邓大平,李文红.高电压胸部摄影诊断和防护效果研究[J].中华放射医学与防护杂志,1995,15(4):260-263 |
| 高电压胸部摄影诊断和防护效果研究 |
| High voltage chest radiography:its effects on diagnostic information and radiation protection |
| 投稿时间：1993-02-05 修订日期：1994-12-16 |
| DOI： |
| 中文关键词: 高电压 胸部摄影 病人剂量 影像质量 放射防护 |
| 英文关键词:high voltage chest radiography patient dose image quality radiation protection |
| 基金项目:国际原子能机构(IAEA)主持的“医用X射线诊断被检者防护最优化”课题 |
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| 中文摘要: |
| 作者以体模实验为基础,测定了不同管电压拍摄胸片时的病人剂量,考察了提高管电压对胶片影像质量的影响。结果表明,使用高电压拍摄胸片比使用低电压有利于降低病人剂量,在增加影像信息量、提高肋骨阴影区和纵膈区病灶检出率方面更有较大优越性。此外,使用高电压技术还有利于延长X射线管的使用寿命。 |
| 英文摘要: |
| On the basis of phantom experiments, patient doses from radiography at different tube voltages were estimated, and effect of elevated tube voltages on quality of film image was studied. The results show that the use of high voltage in chest radiography is conducive to reduction of patient dose as compared with lower voltage, and it has major advantages in obtaining more diagnostic information and facilitating detection of lesions in rib shadow area and mediastinal area. Besides, the high voltage technique is instrumental in lengthening the service life of X-ray tubes. |
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