普通的 X 线摄影,仅能摄取人体的平面影像,对病变部位前后的详细结构,由于重叠,无法真实表露出来,而体层摄影基本上能克服这一缺陷。现今的体层摄影技术日趋为更精确的多轨迹化,且已应用于临床,为大家所熟悉。但临床普遍使用的 X 线机凡附体层摄影装置的,绝大多数为一次单层一张直线体层摄影。而采用多体层摄影,一次摄取五张、 Ordinary X-ray photography, can only take the human body’s planar image, the detailed structure of the lesion before and after, due to overlap, can not be truly revealed, and tomography can basically overcome this flaw. Tomography today is increasingly more accurate and multi-trajectory, and has been used in clinical practice, for everyone familiar. However, X-ray machine commonly used in clinical appendix tomography device, the vast majority of a single straight-line tomography. The use of multi-slice photography, one intake of five,