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EMI扫描仪和Delta扫描仪的对比调制传递函数。

Comparative modulation transfer functions of the EMI and Delta scanners.

作者信息

MacIntyre W J, Alfidi R J, Haaga J, Chernak E, Meany T F

出版信息

Radiology. 1976 Jul;120(1):189-91. doi: 10.1148/120.1.189.

DOI:10.1148/120.1.189
PMID:935445
Abstract

Spatial resolution of the EMI and Delta computed tomographic scanners has been measured by recording the response to a nylon and water sunburst phantom (Siemens star) and calculating the modulation transfer function at radii corresponding to various spatial frequencies. The resolution appears to be related primarily to the size of the matrix element, and exhibits an upper cut-off frequency somewhat in excess of 3 cycles/cm.

摘要

通过记录对尼龙和水太阳爆发模型（西门子星模体）的响应，并计算在对应于各种空间频率的半径处的调制传递函数，已对EMI和Delta计算机断层扫描仪的空间分辨率进行了测量。分辨率似乎主要与矩阵元素的大小有关，并且表现出略高于3周期/厘米的截止频率。

相似文献

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Comparative modulation transfer functions of the EMI and Delta scanners.EMI扫描仪和Delta扫描仪的对比调制传递函数。
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2
Performance evaluation and quality assurance of computed tomography scanners, with illustrations from the EMI, ACTA, and Delta scanners.
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