Traumatic brain injury (TBI) remains a serious medical issue worldwide, because of its high prevalence, temporary disability and mortality rate. TBI is more common in young and middle-aged, i.e. the most active in the labor market, social relations of part of the population. TBI is damage to the brain from an external mechanical force, leading to temporary or permanent impairments of cognitive, physical, and psychosocial functions, with an altered state of consciousness. The diagnosis of TBI is a clinical decision, however, imaging, particularly Computed Tomography (CT) scan is a key in diagnosis, classification, prognosis, and follow-up. In this review, we have included the status of diagnosing TBI in both basic and clinical research. The objective of this study is to provide a brief overview of the various subtypes of traumatic injuries, their complications, along with both the non-invasive and invasive monitoring modalities necessary instances, with a brief analysis and literature review. For a detailed understanding and study of the topic, we included the CT scan data from our own research conducted at the GE LightSpeed VCT.