[Contribution of x-ray computed tomography in acute pancreatitis].

Computed tomography in acute pancreatitis provides a radiological definition by distinguishing between lesions of the peri-pancreatic space and distant tracks. The angioscanner is essential for the definition of glandular lesions and to evaluate the existence and extent of the necrosis. The prognostic evaluation during the initial phase of the disease is not more reliable with computed tomography than with classical clinical ad laboratory signs. However, the combination of the two seems to more accurately predict the prognosis. The morphological follow-up of the course of the lesions is essential in order to recognise the abscess. Computed tomography is the best method for following the course of necrotic fluid collections and of identifying secondary infection by means of guided aspiration. Surgical evacuations of the abscesses may be performed through incisions adapted to their site, as defined by computed tomography.