CT图像空间分辨率及其检测方法

Spatial Resolution of CT Image and its Detection Method

在CT质量的各项参数中,CT的空间分辨率不仅是CT设备质量检测和质量控制的一个重要参数,也是对CT设备性能评价的一个重要指标。本文具体分析了CT空间分辨率的检测方法,包括常见的线对法和调制传输函数法,同时给出了影响空间分辨率的主要相关因素分析,然后结合具体实例,对空间分辨率检测的相关工具、具体实施过程、相关数据的处理等环节,进行了详细说明,这对CT设备的性能评价、质量控制和日常应用等方面,都具有非常重要的意义。

Among all the parameters of CT quality, the spatial resolution is not only an important parameter for quality detection and quality control of CT equipment, but also an important index for performance evaluation of CT equipment. In this paper, the detection methods of CT spatial resolution are analyzed concretely, including common line pair method and modulation transfer function method. At the same time, the main factors affecting the spatial resolution are analyzed. Then, combining with specific examples, the related tools, implementation process and data processing of spatial resolution detection are described in detail, which is of great significance to the performance evaluation, quality control and daily application of CT equipment.