Dedicated Vs. Add On: A Comparison Of Digital Systems

James T. Eisenbarth

doi:10.1117/12.949486

19 September 1985 Dedicated Vs. Add On: A Comparison Of Digital Systems

James T. Eisenbarth

Proceedings Volume 0555, Medical Imaging and Instrumentation '85; (1985) https://doi.org/10.1117/12.949486
Event: Medical Imaging and Instrumentation '85, 1985, Boston, United States

Abstract

A performance comparison between two digital imaging systems was done using various phantoms to both simulate a clinical situation and provide insight into each system's imaging characteristics. One system analyzed was a complete Philips package including a DVI-II digital imaging system with the most recent software updates and a fourteen inch "C" arm mounted multi-mode image intensifier. As the room contains only one manufacturer's equipment, it represents the current approach to digital imaging. The second system was an ADAC DPS-4100 digital imaging system added on to CGR Septar components, including a nine inch dual mode image intensifier. The add-on approach has recently fallen on disfavor. The comparison was undertaken to determine the relative advantages and disadvantages for each approach. Image characteristic comparison was performed using a commercially available digital subtraction angiography phantom. Measurements of each system's high contrast spatial resolution, low contrast detectability and linearity, dynamic range and subtraction effectiveness were made. Clinical demands were simulated with a standard skull phantom. This enabled evaluation of each system's image acquisition requirements, post-processing capabilities and patient dose.

Citation Download Citation

James T. Eisenbarth "Dedicated Vs. Add On: A Comparison Of Digital Systems", Proc. SPIE 0555, Medical Imaging and Instrumentation '85, (19 September 1985); https://doi.org/10.1117/12.949486

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