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International audience; Current radiology practices face extreme pressure on available resources with demands of multi-dimensional requirements. Technicians are at the center of a constant drive for optimal productivity and optimization with the minimal possible resources. This paper evaluates the invisible physical and mental exertions resulting from operating computed tomography (CT) scans by fifty-seven technicians surveyed following current radiology practices. Demographic characteristics were reviewed to evaluate differences across the study variables based on gender, level of education, years of experience, and working sector.

International audience; Product usability has been subjected to many evaluation techniques. Many evaluation techniques use heuristics approach to evaluate the overall usability of the product. Considering heuristics works in some particular examples, In the healthcare sector, heuristics approach is hard to implement due to fundamental constraints (stakeholders, safety, and time requirements). This paper examines a scheduling algorithm that correlates to usability problem. The scheduling algorithm has a definite impact on the product Return of investment and customer satisfaction.

International audience; Advancement in science and technology has increased work exertion tremendously. Many researchers and professionals have noted the importance of work exertion in correlation with the work environment. However, there is no mention of the principle of invisible exertion correlated with the current advancement of science and technology. This paper evaluates the invisible physical and mental exertion for CT scan technicians. Fifty-seven CT scan technicians were surveyed to determine the extent of their invisible physical and mental exertion. The overwhelming majority of technicians reported significant exertion while operating the CT scan. The invisible physical and mental exertion occurred differently in accordance with demographic characteristics. Gender is a significant factor, where male technicians reported more physical invisible exertion than female technicians. The invisible physical exertion occurred more than invisible mental exertion.