JOURNAL ARTICLE

Nongated vs electrocardiography-gated CT imaging of blunt aortic root rupture in a trauma patient

Marco Giambuzzi, Sara Seitun, Antonio Salsano, Giancarlo Passerone, Carlo Ferro, Francesco Santini
Journal of Cardiovascular Computed Tomography 2015, 9 (2): 146-8
25499201
An 18-year-old male, involved in a car accident, underwent a non-gated contrast enhanced CT with apparently no evidence of significant abnormalities of the thoracic aorta. The later onset of aortic valve regurgitation prompted a prospectively ECG-triggered high-pitch spiral acquisition using a dual-source CT system which showed a tear with a huge pseudoaneurysm of the aortic root. The patient underwent successful urgent conservative surgical repair. CT is the primary screening modality for aortic injuries. Cardiac motion artifacts may hamper sensitivity at the root/ascending aorta level when a non ECG-gated technique is used, thus masking a potentially life-threatening condition. ECG-gated-CT should be mandatorily performed in patients with a high suspicion for an aortic root trauma thus allowing timely repair and avoiding a catastrophic event.

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