Contrast selection: Do the differences have a clinical impact

The increasing incidence of contrast-induced nephropathy has been the subject of a vast degree of research. The causes of this condition are not completely understood, and there are many conflicting opinions as to the best methods to prevent the incidence and associated mortality and morbidity of this condition. Some studies have suggested that the choice of contrast agent influences the outcomes of patients undergoing radiologically guided procedures and have led to widely adopted recommendations in clinical practice. In this review of the current literature, we seek to address these issues and to evaluate whether the specific selection of contrast agent has an impact on clinical outcomes.