Picture archiving and communication system (PACS) - A medical imaging technology that provides economical storage of, and convenient access to, images from multiple modalities within a facility. Electronic medical record (EMR) - A computerized medical record created in an organization that delivers care, such as a hospital or physician's office. Vendor Neutral Archive (VNA) - A medical imaging technology in which images and documents (and potentially any file of clinical relevance) are stored (archived) in a standard format with a standard interface, such that they can be accessed in a vendor-neutral manner by other systems.