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Digitization, the advantages and disadvantages, compared with analog processing of X-ray method with respect to radiation dose
TONCROVÁ, Silvie
Many years have passed since the discovery of X-rays, and yet X-ray examination remains one of the most frequently used examinations today. During the course of existence of radiological science, high-performance X-ray machines have been developed for basic radioscopy and radiographic techniques. In recent decades, computing technology has been increasingly applied in X-ray devices, and has become the basis for new X-ray examination techniques, introducing digitalization to the field of X-ray diagnosis. The objective of my work is to compare the advantages and disadvantages of digital processig of X-ray images versus analogue techniques, and to compare the economic and operational costs of these systems and the doses used in the respective devices. The comparisons were made at departments and units equipped with systems of direct digitalization, indirect digitalization, and analogue image processing. My hypothesis that the use of digital devices entails a lesser radiation burden for patients was confirmed. This is well apparent from the tables and graphs documenting the results of my measurements. I also provide a basic description of the generation and processing of X-ray images using the respective systems, some legislative requirements, and an explanation of basic terms and technicals data about the diagnostic devices used. This work indicates that digitalization in the field of radiodiagnostics contributes to the reduction of radiation dose for patients and is more economical for major healthcare facilities. Digitalized systems place greater demand on the software for image creation, but when properly used, they facilitate and expedite the work of radiology assistants and improve the quality of patient care.
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