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多层螺旋ＣＴ扫描仪是指一种带有多排检测器阵列的特殊ＣＴ设备，它可以同时采集不同层面位置的数据。多层螺旋ＣＴ扫描仪具有对纵向大范围进行快速扫描的能力，并且具有高Ｚ轴分辨率等特点。本文介绍了多层螺旋ＣＴ扫描和图像重建的一般原理，并对４层螺旋ＣＴ做了详述。多层
A multi-slice spiral CT scanner is a special CT device with a multitude of detector arrays that simultaneously collect data at different levels and positions. Multi-slice spiral CT scanners have the ability to quickly scan a wide range of vertical and high Z-axis resolution and so on. This article describes the general principle of multi-slice spiral CT scanning and image reconstruction, and details the 4-slice spiral CT. Multi-layer