Gamma camera image acquisition, display, and processing with the personal microcomputer.

Abstract

The authors evaluated the potential of a microcomputer for direct acquisition, display, and processing of gamma camera images. Boards for analog-to-digital conversion and image zooming were designed, constructed, and interfaced to the Macintosh II (Apple Computer, Cupertino, Calif). Software was written for processing of single, gated, and time series images. The system was connected to gamma cameras, and its performance was compared with that of dedicated nuclear medicine computers. Data could be acquired from gamma cameras at rates exceeding 200,000 counts per second, with spatial resolution exceeding intrinsic camera resolution. Clinical analysis could be rapidly performed. This system performed better than most dedicated nuclear medicine computers with respect to speed of data acquisition and spatial resolution of images while maintaining full compatibility with the standard image display, hard-copy, and networking formats. It could replace such dedicated systems in the near future as software is refined.

DACS – Ein kostengünstiges nuklearmedizinisches Dokumentenarchiv- und Kommunikationssystem

“…Auf den beiden PDP-11-Computern, die über ein Vierdrahtkabel miteinander verbunden waren und einen Datentransfer erlaubten, wurde das Akquisitions-und Auswerteprogrammpaket Gamma-11 (Philips) eingesetzt. Auf dem Macintosh war das Softwarepaket NucLear [Scientific Imaging, Denver, (2)] im Einsatz, auf dem ICON die gleichnamige Software der Firma Siemens. Zur Szintigramm-Dokumentation standen drei Röntgenfolienbelichter zur Verfügung.…”