Focused Assessment with Sonography (FAST) in Trauma
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Traumatic injury remains the leading cause of death of persons from age 1 to 44 years, with nearly 200 000 deaths per year in the United States. A substantial proportion of these patients has injuries from blunt abdominal and/or chest trauma. The advent of focused assessment with sonography in trauma (FAST) 3 decades ago enabled clinicians to rapidly screen for injury at the bedside of patients, especially those patients too hemodynamically unstable for transport to the computed tomography (CT) suite. The identification of free fluid within the peritoneal cavity, pericardium, and the pleural spaces can be accomplished immediately at patient arrival to the hospital. Other applications of FAST include detection of solid organ injury, pneumothorax, fractures, serial examinations as well as use in prehospital transport and multiple casualty settings as a triage tool.We will review these newer developments of US in trauma victims and discuss those applications useful to radiologists.

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