血管造影术中高速增感屏-胶片组合的评估。

The evaluation of high-speed screen-film combinations in angiography.

作者信息

Ovitt T W, Moore R, Armplatz K

出版信息

Radiology. 1975 Feb;114(2):449-52. doi: 10.1148/114.2.449.

DOI:10.1148/114.2.449

Abstract

Various high-speed screen-film combinations were evaluated to compare increase in speed, loss of resolution, and increase in radiographic mottle. Results indicate that the rare-earth film-screen system is the fastest and has a higher x-ray absorption efficiency. The Kodax X-Omatic screen has the greater resolving power but is slower than the high-speed calcium tungstate system. A smaller focal spot can be used with the fast speed of the rare-earth system to increase resolution.

摘要

对各种高速增感屏 - 胶片组合进行了评估，以比较速度的提高、分辨率的损失和射线照相斑点的增加。结果表明，稀土增感屏 - 胶片系统速度最快且具有更高的X射线吸收效率。柯达X - Omatic增感屏具有更高的分辨力，但比高速钨酸钙系统速度慢。稀土系统的快速特性可使用较小的焦点来提高分辨率。