[Aortic traumatic lesion. Has tomodensitometry a role?].

The low positive yield from aortography in patients with suspected traumatic aortic rupture has prompted research into CT of the mediastinum as a screening investigation which could significantly reduce the number of negative angiograms performed. Much of the data published to date suggest a promising role for CT, but false negative scans have been reported and the precise false negative rate has yet to be determined. We propose an algorithm for the use of CT in suspected traumatic rupture but emphasise that continuous monitoring of outcomes and further large studies are required before CT can become an established screening technique.