The role of professional networks in radiology services.

Recent developments in public health policy have high-lighted the central role of the clinical work force in the success of policy implementation, and thus the need for effective human resource policies. Given the high level of professionalism in health services, a number of special issues arise, including the organizational structures that best support professional work. Experiences from global industries that rely on a highly expert work force show that hierarchical control structures need to be supplemented by a variety of networks. Networks are complex structures that are very different from normal hierarchies, and they need to be effectively understood. While they usually develop spontaneously, they are often not optimally structured, adequately supported, or effectively exploited by health service organizations. It is important to understand the nature of networks and how they can be promoted in order to ensure that clinicians are appropriately supported in providing and enhancing services.