[旋转全景x光片上的异常鬼影:5例]。

Tandlaegebladet Pub Date : 1990-08-01

I Sewerin

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引用次数: 0

摘要

在前一篇关于旋转全景x光片上形成“鬼影”的原理的论文的延续中，提出了五个不寻常的和说明性的案例。它们证明了真实物体的位置相对于旋转中心的位置的影响。鬼影图像的尺寸反映了中心和真实结构之间的距离。如果高度是均匀的，这意味着真正的物体是旋转中心的座位。如果在不同的视角下其尺寸不同，鬼影可能比真实结构显得更窄或更宽。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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[Unusual ghost-images on rotational panoramic radiographs: five cases].

In continuation of a previous paper on the principles in formation of "ghost images" on rotational panoramic radiographs five unusual and illustrative cases are presented. They demonstrate the influence of the position of the true object in relation to that of the rotation center. The dimensions of the ghost image inform of the distance between the center and the true structure. If the height is uniform it means that the true object is the seat of the rotation center. A ghost image may appear narrower or broader than the true structure, if its dimensions differ in various viewing angles.

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Tandlaegebladet

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