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EHR See Electronic Healthcare Record.

Electronic Healthcare Record (EHR) An electronic health record is a longitudinal record of a patient's health and healthcare from cradle to grave. It combines the information about patient's primary healthcare with subsets of information associated with the outcomes of periodic care held in Electronic Patient Records. This term is defined in Information for Health ( http://www.nhsia.nhs.uk/def/pages/info4health/contents.asp ). See Electronic Patient Record (EPR).

Electronic Patient Record (EPR) A record containing a patient's personal details (name, date of birth etc), their diagnosis or condition, and details about the treatment/assessments undertaken by a clinician. It typically covers the episodic care provided mainly by one institution. This term is defined in Information for Health. ( http://www.nhsia.nhs.uk/def/pages/info4health/contents.asp ). See Electronic Healthcare Record (EHR).

EOL See Everything Online.

EPR See Electronic Patient Record.

Ethernet This is the most widely used architecture in local area networks (LAN). It is defined by the IEEE as the 802.3 standard. Ethernet operates over various types of physical media such as coaxial, shielded or unshielded twisted pair and fibre optics. It normally operates at 10 or 100 Mbps but new versions can operate at Gbit (1000 Mbps) transfer rates.

EuroPACS A European wide organisation involved in promotion and research in PACS. This organisation holds an annual conference to discuss progress in PACS ( http://www.europacs.org/ ).

Everything Online (EOL) A PACS design where all exams are available in online storage, irrespective of the age of the exams. The RAID is backed up with an archive storage device such as DVD or tape. See Long Term Archive (LTA), Short Term Storage (STS), Nearline archive, Online storage and Offline archive.