| CT空间分辨率自动检测的研究与实践 |
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| 引用本文： | 占杰,余晓锷,ZHAN Jie,YU Xiao-e.CT空间分辨率自动检测的研究与实践[J].CT理论与应用研究,2006,15(2):43-46. |
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| 作者姓名： | 占杰 余晓锷 ZHAN Jie YU Xiao-e |
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| 作者单位： | 南方医科大学生物医学工程系仪器教研室,广东,广州,510515 |
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| 摘 要： | 目的利用MTF方法实现CT空间分辨率的自动测量。方法阐述了自动测量原理,采用Catphan体模和自制体模对CT空间分辨力进行了测量。结果主观法和客观法测试结果相近。结论可以用自制体模对CT的空间分辨率进行自动测量。
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| 关 键 词： | 计算机断面成像(CT) 空间分辨率 调制传递函数 线扩散函数 边缘扩散函数 |
| 文章编号： | 1004-4140（2006）02-0043-04 |
| 收稿时间： | 2006-12-18 |
Practice and Study on Automatic Measurement of CT Spatial Resolution |
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| ZHAN Jie,YU Xiao-e.Practice and Study on Automatic Measurement of CT Spatial Resolution[J].Computerized Tomography Theory and Applications,2006,15(2):43-46. |
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| Authors: | ZHAN Jie YU Xiao-e |
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| Institution: | Department of BME, The Southem Medical University, Guangzhou 510515,China |
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| Abstract: | Objective To measure spatial resolution with MTF method. Method The Catphan phantom and self-prepared experimental phantom were used to measure spatial resolution based on the analyzing of measurement principle. Result the results of subject method was basically consistent with that of the object method. Conclusion it is feasible to do the automatic measurement for CT using self-prepared experimental phantom. |
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| Keywords: | CT spatial resolution Modulation transfer function Line spread function Edge spread function |
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