Abstract
Usability is essential to every functioning system, especially when the system is intertwined with people's safety and needs. Radiological diagnosis is a critical tool to identify diseases and tumors. Therefore, its usefulness is beyond question, despite its radiation risk. Many operational difficulties related to computed tomography (CT) scanning come in the form of nontechnical requirements. Hence, there is a need to examine the technical requirements that suit its context of use. This paper examines the barriers and enablers of CT scan usability within its operational context of use. In total, 11 CT scan technicians and one radiology doctor were interviewed to constitute the primary data of this paper. The study reveals that system engineering is critical to improving the current condition. The results show cases wherein the CT scan table jammed due to the weight of the patient.