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螺旋CT一个强大的功能即高分辨扫描技术简称（HRCT），它是以l～2mm层厚和像素大小0．2～0．3mm重建图像的一种技术，其中层厚、DFOV、矩阵和重建算法及kV、mA值的设定，是获得高分辨图像及图像后处理的重要参数与基础。本文结合我院GEHISPEEDFX／I螺旋CT机探讨参数与临床应用
One of the powerful features of spiral CT is HRCT. It is a technique of reconstructing images with l ~ 2mm layer thickness and pixel size 0.2 ~ 0.3mm, among which layer thickness, DFOV, matrix and reconstruction Algorithm and setting of kV and mA values are important parameters and basis for obtaining high-resolution image and image post-processing. This article combined with our hospital GEHISPEEDFX / I spiral CT machine parameters and clinical application