Basic radiological system: a case study in 'appropriate technology for better health'.

Radiology continues to play an important role in diagnosis and management of disease. The provision of radiology services to rural areas has represented a challenge to rural communities all over the world, particularly in developing countries. In 1980, the World Health Organization (WHO) introduced the Basic Radiological System (BRS) project to provide the specifications for a safe, inexpensive diagnostic imaging system for rural areas, together with radiological manuals. Several manufacturers now produce imaging equipment to the WHO-BRS standard and are meeting the WHO goal for providing 'appropriate technology for better health' in rural areas of developing countries. With the improvement in access to radiological systems, the WHO is now turning to improving the provision of ultrasound manuals and equipment.