目的对多层螺旋CT图像伪影的成因及其影响因素进行分析。
Objective: to study the factors influencing multi-slice ct image artifacts.
对自制模体行ct扫描，分析CT图像伪影可能引起的图像误差。
The image error possibly from ct image artifact was analyzed after scanning a self made phantom by ct.
方法根据故障现象，将图像伪影分为规则伪影和不规则伪影两大类。
Methods Image artifact was classified two sorts such as regular artifact and irregular artifact by faults phenomenon.
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