Hack S N, Chang M, Line B R, Cooper J A, Robeson G H
J Nucl Med. 1986 Nov;27(11):1755-63.
We have designed, implemented, and tested a new Research Data Acquisition System (RDAS) that permits a general purpose digital computer to acquire signals from both gamma camera sources and physiological signal sources concurrently. This system overcomes the limited multi-source, high speed data acquisition capabilities found in most clinically oriented nuclear medicine computers. The RDAS can simultaneously input signals from up to four gamma camera sources with a throughput of 200 kHz per source and from up to eight physiological signal sources with an aggregate throughput of 50 kHz. Rigorous testing has found the RDAS to exhibit acceptable linearity and timing characteristics. In addition, flood images obtained by this system were compared with flood images acquired by a commercial nuclear medicine computer system. National Electrical Manufacturers Association performance standards of the flood images were found to be comparable.
我们设计、实现并测试了一种新型研究数据采集系统（RDAS），该系统允许通用数字计算机同时从γ相机源和生理信号源采集信号。该系统克服了大多数面向临床的核医学计算机所具有的有限的多源、高速数据采集能力。RDAS 能够同时从多达四个γ相机源输入信号，每个源的吞吐量为 200 kHz，并且能够从多达八个生理信号源输入信号，总吞吐量为 50 kHz。严格的测试发现 RDAS 具有可接受的线性度和定时特性。此外，将该系统获得的泛源图像与商业核医学计算机系统采集的泛源图像进行了比较。发现泛源图像的美国国家电气制造商协会性能标准具有可比性。
