双能X线吸收法的最新进展。用于骨密度测定和形态测量的新型双能X线吸收法/多能量X线吸收法设备的质量。

Recent developments in DXA. Quality of new DXA/MXA-devices for densitometry and morphometry.

作者信息

Felsenberg D, Gowin W, Diessel E, Armbrust S, Mews J

机构信息

Abt. für Radiologische Diagnostik und Nuklearmedizin, Universitätsklinikum Benjamin Franklin, Freie Universität Berlin, Germany.

出版信息

Eur J Radiol. 1995 Sep;20(3):179-84. doi: 10.1016/0720-048x(95)00682-g.

DOI:10.1016/0720-048x(95)00682-g

PMID:8536744

Abstract

The introduction of new devices demands the assessment of their capabilities in established terms. The accuracy, reproducibility and spatial resolution of in vitro (phantom) osteodensitometric and morphometric measurements of QDR 2000 Plus and EXPERT are presented. Design details of these DXA/MXA-devices are listed and discussed in combination with the data acquired in the test measurements and calculations. The image quality will improve with further software developments. The long-term reproducibility and in vivo reliability remains to be evaluated.

摘要

新设备的引入需要根据既定标准评估其性能。本文介绍了QDR 2000 Plus和EXPERT体外（体模）骨密度测量及形态测量的准确性、可重复性和空间分辨率。结合测试测量和计算中获取的数据，列出并讨论了这些双能X线吸收仪/混合双能X线吸收仪设备的设计细节。随着软件的进一步开发，图像质量将会提高。长期可重复性和体内可靠性仍有待评估。