The use of digital imaging systems to replace conventional X-ray pictures and other imaging techniques. Though expensive to operate, digital imaging and storage systems offer promising possibilities for transmission of clinical images within and between hospitals and community health-care units, providing fast access and remote working that will benefit patients and health-care staff alike. When security and confidentiality are assured, images can be transferred via the Internet and teleradiology, thereby eliminating the costly physical transfer and storage of X-ray films.