Six-Second CT Imaging

Fred Murphy

doi:10.1117/12.965424

23 December 1976 Six-Second CT Imaging

Fred Murphy

Proceedings Volume 0096, Application of Optical Instrumentation in Medicine V; (1976) https://doi.org/10.1117/12.965424
Event: Application of Optical Instrumentation in Medicine V, 1976, Washington, D.C., United States

Abstract

The resources of radiology have been tremendously augmented by CT scanning. Developing from brain scanners, through slow body scanners, the present, third generation of fast whole-body CT scanners provide images of unprecedented detail and quantitative informa-tion content. The technological level required is high: precise mechanical alignment, efficient and linear multi-channel X-ray detectors, electronics of enormous dynamic range, a fast computer with large memory and special reconstruction hardware, flexible controls, and powerful data display and storage system. Performance must be evaluated carefully. The specification and measurement of X-ray density resolution and spatial resolution are straightforward, but optimization is tricky since they interact. Both, but more especially density resolution, tend to be limited by X-ray photon statistics. Because CT scanning is still a rapidly developing field, flexibility is perhaps the most important feature of a CT scanner. Some images from the first year of operation of the Varian 6-second CT scanner are shown.

Citation Download Citation

Fred Murphy "Six-Second CT Imaging", Proc. SPIE 0096, Application of Optical Instrumentation in Medicine V, (23 December 1976); https://doi.org/10.1117/12.965424

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