[Analysis of circumstances of occurrence of contrast media in imaging services].

Introduction: To prevent extravasations in medical imaging, analyses of organizational and professional circumstances of the occurrence of extravasations have been conducted in the Bordeaux University Hospital (BUH).

Method: Two parallel studies were conducted: (i) clinical practice evaluation (CPE) including practice analysis groups and development of indicator of extravasation occurrence; (ii) Case-control study analyzing the factors associated with the occurrence of extravasations. Cases were constituted with consecutive series of patients with extravasation occurred in the BUH; controls were constituted of series of patients managed in medical imaging in the BUH without any extravasation.