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Trauma is the leading cause of death in age group less than 45 years. In trauma, time is one of the most crucial factors in predicting prognosis. Outcomes are greatly improved when critical interventions are provided within the golden hour following injury. Whole body multidetector computerised tomography (WBMDCT) can decrease this critical time and increase survival. Emergency CT plays a major role in diagnostic workflow in the evaluation of patients with polytrauma. MDCT scanners are widely used because they rapidly produce high-resolution scans of large areas, offering short examination times for multiple body regions under emergency conditions. Such examinations most often include the head, cervical spine, and thorax to pelvis. Role of MDCT in head trauma remains unparalleled for reasons like its widespread availability and capability to reveal skull fractures, primarily because it is a fast and efficient method to triage the patients with treatable conditions mandating urgent surgical intervention such as extra axial hematomas, mass effect, herniations of brain, hydrocephalus, and midline shift and hence preventing secondary brain injury. MDCT angiography is an important tool to screen patients with suspected vascular injury.