曲面体层摄影中的尺寸再现
Dimensional reproduction in rotational panoramic radiography.
作者信息
McDavid W D, Tronje G, Welander U, Morris C R
出版信息
Oral Surg Oral Med Oral Pathol. 1986 Jul;62(1):96-101. doi: 10.1016/0030-4220(86)90079-4.
PMID:3460015
Abstract
The customary mathematical expressions for magnification in rotational panoramic radiography are examined. It is shown that although these expressions yield correct results for small objects placed perpendicularly to the central ray of the beam, they must be corrected in other situations.
摘要
对旋转全景X线摄影中放大率的常用数学表达式进行了研究。结果表明，尽管这些表达式对于垂直于线束中心射线放置的小物体能得出正确结果，但在其他情况下必须进行修正。
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