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In medical imaging, Picture Archiving and Communication Systems (PACS) are computers or networks dedicated to the storage, retrieval, distribution and presentation of images.

A PACS replaces hard-copy based management of medical images, such as film archives. It also expands conventional systems by providing the capability for off-site viewing and reporting (such as distance education, tele-diagnosis). Additionally, it enables physicians at various physical locations to view the same information simultaneously, (teleradiology). PACS also has a cost and space advantage over film archival.

Typically a PACS network consists of a central server, which stores a database containing the images. User workstations are used to scan image films into the system, print image films from the system and view an interactive display of digital images. PACS workstations also allow users to manipulate the images by cropping, rotating, zooming, enhancing brightness and contrast, and more.

Modern radiology equipment feeds images directly into PACS in digital form. For compatibility with older systems, most hospital imaging departments and radiology practices use a film digitizer.

What is the biggest benefit for the patient?

The elimination of film means a faster diagnosis and treatment, which leads to the reduction of medical costs. A patient’s images can be seen by the physician in his office via a secure internet link or consolidated onto a CD.

What is the biggest benefit for the physician?

Efficiency within the hospital is improved, and delays are significantly reduced if not eliminated. Instant access to images and reports at secure locations offer physicians immediate images without having to wait for paper reports to be sent to their offices.

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