mrcem2-2118

A 45-year-old woman was involved in a car accident where her car collided with a tree at a high speed. She was not wearing a seatbelt and was thrown forward onto the steering wheel of her car. She has bruising over her anterior chest wall and is experiencing chest pain. Her chest X-ray in the resuscitation room shows potential signs of a traumatic aortic injury, but it is uncertain.

Which investigation should be prioritized for further examination?