| 非螺旋与螺旋扫描方式在头颅常规CT的应用比较 |
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| 引用本文： | 周秉纯,李平,蔡红法,沈小健. 非螺旋与螺旋扫描方式在头颅常规CT的应用比较[J]. 中国血液流变学杂志, 2007, 17(3): 501-502,505 |
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| 作者姓名： | 周秉纯 李平 蔡红法 沈小健 |
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| 作者单位： | 南京医科大学附属苏州医院、苏州市立医院东区放射科,江苏苏州,215001 |
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| 摘 要： | 目的研究螺旋与非螺旋方式在头颅常规扫描应用中的差别,探讨头颅扫描的理想方法。方法用Mx8000四排螺旋CT对30例志愿者分别进行螺旋和非螺旋头颅常规扫描,在分辨率、噪声、伪影和综合评价等方面对图像进行评分,作统计学分析比较。结果螺旋扫描的图像在伪影、噪声及综合诸方面,均低于非螺旋扫描图像,经统计分析存在显著性差异(P<0.05);二者仅在空间分辨率方面无显著性差异。结论头颅常规检查采用非螺旋扫描方式,可以得到较高质量的CT图像。
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| 关 键 词： | 螺旋扫描 非螺旋扫描 图像质量 对比研究 |
| 文章编号： | 1009-881X（2007）03-0501-02 |
| 修稿时间： | 2007-06-13 |
The Comparison Research of Helical or Non-helical Scan at Convention Head CT |
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| ZHOU Bing-chun,LI Ping,CAI Hong-fa,SHEN Xiao-jian. The Comparison Research of Helical or Non-helical Scan at Convention Head CT[J]. Chinese Journal of Hemorheology, 2007, 17(3): 501-502,505 |
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| Authors: | ZHOU Bing-chun LI Ping CAI Hong-fa SHEN Xiao-jian |
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| Affiliation: | Department of Radiology,The Affiliated Suzhou Hospital of Nanjing Medical University,East district of Suzhou Municipal Hospital,Suzhou 215001 |
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| Abstract: | Objective To discuss the influnce of CT image quality between the way of helical and non-helical scan on the convention head CT inspection.Methods The head convention CT inspection through helical scan and non-helical scan was carried out on 30 volunteers by using Mx8000 4-row spiral CT with image grade on the resolution,the noise,the false shade and the synthesis,then a statistic comparison analysis was made.Results The CT images of helical scan on the false shade,the noise and the synthetic,are lower than that of the non-helical scan.There is an obvious difference between them(P<0.05);and there is little difference on the space resolution between them.Conclusion By using the way of non-helical scan,a comparatively highgrade CT image can be obtained. |
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| Keywords: | Spiral CT Non-spiral CT CT image quality Appraisal research |
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