Diagnostic imaging

Imaging Modalities


Imaging for medical purposes involves the services of radiologists, radiographers, medical physicists and biomedical engineers working together as a team for maximum output. This ensures the production of high quality of radiological service with consequent improvement of health care service delivery.

Requirements for medical imaging services

Requirements at the site:

  • Developed as an integral part of national health care systems, according to the needs and social and economic structure of the country, region and area;
  • Regulated by governments in accordance with international standards;
  • Appropriate to the level of the health care system at which they are provided;
  • Appropriate to the therapeutic capabilities that are available.
Requirements at the national level:
  • Government commitment and support;
  • National plan for diagnostic imaging services;
  • National radiation protection control authority;
  • National regulations on medical devices and radiation protection;
  • Specialist advisory groups;
  • Inventory and needs assessment;
  • Upgrade, repair and maintenance of existing facilities and establishment of new services, as appropriate;
  • National quality system.

Furthermore, regardless of the type of equipment and procedures used, the following infrastructure is required:

  • Trained medical, technical and engineering staff;
  • Radiation protection measurements and regulations;
  • Reliable supplies of clean water, electric power, spare parts and consumables.

Contact information

World Health Organization
Medical Devices
20 Avenue Appia
1211, Geneva 27
Email: medicaldevices@who.int