| 引用本文： |
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毛新清,杨振燕,郑少强,赵小虎.兔主动脉CTVE重建中阈值与伪影的关系[J].同济大学学报（医学版）,2003,(2):91-94. [点击复制]
- .A Correlation Analysis Test between the Mean Attenuation of Aorta and Artifacts in CTVE[J].同济大学学报（医学版）,2003,(2):91-94. [点击复制]
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| 摘要: |
| 目的 探讨CTVE中阈值的改变对CTVE图像质量的影响。方法 兔主动脉CTVE重建中改变阈值，将出现伪影时的阈值与主动脉中心平均CT值作相关性分析。结果 出现伪影时的阈值均与主动脉中心平均密度具有正相关(r1＝0.649，P1＜0.05；r2＝0．928，P2＜0．05；r3＝0．611，P3＜0．05)，又有统计学意义。结论 根据增强后主动脉中心平均CT值可测定CTVE的显示阈值范围，从而消除伪影。 |
| 关键词: 兔 主动脉 CTVE 重建 阈值 伪影 关系 图像质量 影响 |
| DOI： |
| 修订日期：2002-12-20 |
| 基金项目: |
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| A Correlation Analysis Test between the Mean Attenuation of Aorta and Artifacts in CTVE |
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| Abstract: |
| Objective To promote the image quality by changing the threshold in CTVE.Methods The mean attenuation of aorta and the threshold at which artifacts appeared were followed in a correlation analysis study.Results A statistically significant correlation w |
| Key words: atherosclerosis tomography, X-ray computed,virtual endoscopy,threshold,artifact |
