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| 不同CT性能模体低对比分辨力检测结果探讨 | |
| 引用本文： | 尤良. 不同CT性能模体低对比分辨力检测结果探讨[J]. 中国医学装备, 2011, 8(10): 29-32 |
| 作者姓名： | 尤良 |
| 作者单位： | 重庆市医疗设备质量检测管理所,重庆,400023 |
| 摘 要： | 目的：寻找两种低对比度分辨力模体在同一台CT装置上以相同扫描条件测试产生低对比度分辨力误差的原因。方法：按国家标准中规定的低对比分辨力检测和评价方法,以常用的两种性能模体进行比对测试。结果：所测低对比度分辨力结果相差1.62～2.01。结论：低对比度分辨力测试应选择Catphan500性能测试模体组件为宜。 |
| 关 键 词： | CT性能模体 低对比分辨力 评价方法 结果探讨 |
Discussion on low-contrast resolution measurement result for CT performance phantoms |
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| YOU Liang Chongqing Institute for Medical Equipment Quality,Chongqing ,China.. Discussion on low-contrast resolution measurement result for CT performance phantoms[J]. China Medical Equipment, 2011, 8(10): 29-32 | |
| Authors: | YOU Liang Chongqing Institute for Medical Equipment Quality Chongqing China. |
| Affiliation: | YOU Liang Chongqing Institute for Medical Equipment Quality,Chongqing 400023,China. |
| Abstract: | Objective：To find the reason of low-contrast resolution error tested for the two performance phantoms of low-contrast resolution on the same CT scanner with identical scanning condition.Methods：The contrast testing was made to operate the two performance phantoms of low-contrast resolution by reference to the testing and evaluation method of the low-contrast resolution in the national standards.Results：The difference was 1.62-2.01 between the 2 performance phantoms.Conclusion：The phantom module of Catphan 500 is advisable to be used. |
| Keywords: | CT performance phantom Low-contrast resolution Appraising method Result discussion |
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