pacs imaging

Hospital Information System Background

An element of health informatics that

focuses mainly on the administrational

needs of hospitals.

 A comprehensive, integrated information

system designed to manage all the aspects

of a hospital’s operations, such as medical,

administrative, financial, and legal issues

and the corresponding processing of

services. Hospital information system is

also known as hospital management

software (HMS) or hospital management

system.

 Provide a common source of information

about patient’s health information history.

 Including other results.

Radiology information system backrgound

Networked software system for managing

medical imagery and associated data. An RIS is

especially useful for tracking radiology imaging

orders and billing information, and is often used

in conjunction with PACS and VNAs to manage

image archives, record-keeping and billing.

Pacs hiatorical development

Concept began with Albert Jutras in

Canada in the 1950s.

 Early PACS system were developed by the

military to send images between the

Veterans Administration hospitals in

1980s.

 Development was encouraged and

supported by the U.S government.

 Early process involved scanning

radiographs into the computer and sending

the from computer to computer.

 Images were then stored in PACS.

 Computed and digital radiography

followed.

A network of computers used by radiology

departments that replaces films with

electronically stored and displayed images.

 It provides archives for storage of

multimodality images, integrates images with

patient database information, facilitates laser

printing of images and displays both images

and patient information at workstations

throughout the network.

 It also allows viewing of images in remote

locations.

 Can accept any image that is in DICOM

format.

 Custom designed for each facility.

Fundamental parts of pacs

Image acquisition

Display workstation

Archive servers

Image acquisition

In modern radiology departments, most images are acquired in digital formats, meaning that the images are inherently digital and can Be transferred via a Computer network.

Display workstation

is

any computer that a

health care worker uses to

view a digital image. It is

the most interactive part

of a PACS, and these

workstations are used

inside and outside if

radiology.

Archive servers

An archive server is the

file room of the PACS. It is

composed of a database

server or image manager,

short-term and long-term

storage, and a computer

that controls the PACS

Workflow

is a term that can be used in any

industry or in any organization. It simply means

how a process is done, step by step.

Generic pacs workflow

many ways different from

the film-based workflow. The technologist may get

the order via an electronic work-list or a paper

requisition, but after that, the process begins to

change

Digital imaging and communication in medicine

is the

universal format for PACS storage and

transfer.

 Non-image data, such as scanned

documents, may be incorporated using

consumer industry standard formats like

PDF (Portable Document Format), once

encapsulated in DICOM.

 DICOM is a universally accepted standard

for exchanging medical images among

modality, viewing stations, and the archive.

First completed in 1985, this standard laid

the groundwork for the future development

of integrated PACS.

Architecture

is the physical

implementation of required functionality, or

what one sees from the outside.

 A radiologist typically sees a view in

station.

 A technologist present at a QA

workstation.