Hung PACS

1. PACS Overview
Hung Nguyen

2. Contents
I. What is PACS?
II. Architecture of PACS
III. Querying and Image Received
IV. RIS (Radiology Information Systems)?
V. ClearCanvas WorkStation Overview

3. What is PACS?
 PACS (Picture Archiving Communication and Systems) have
been developed in an attempt to provide economical storage,
rapid retrieval of images, access to images acquired with multiple
modalities, and simultaneous access at multiple sites.
 Most PACSs handle images from various medical imaging
instruments, including MR,PET,CT….
 PACS consists of four major components:
 The imaging modalities such as CT and MRI
 A secured network for the transmission of patient information
 Workstations for interpreting and reviewing images
 Archives for the storage and retrieval of images and reports

4. Uses
 Hard copy replacement.
 Remote access.
 Electronic image integration platform.
 Radiology Workflow Management.

5. Architecture of PACS

6. Querying and Image Received
 The communication with the PACS server is done through dicom
objects that are similar to Dicom images, A query typically looks
as follows:
 The client establishes the network connection to the PACS server.
 The client prepares a query object which is an empty Dicom dataset object.
 The client fills in the query object with the keys that should be matched
 The client creates empty tags (tags with zero length string values) for all
the tags it wishes to receive from the server.
 The query object is sent to the server. The server sends back to the client a
list of response Dicom objects.
 The client extracts the tags that are of interest from the response Dicom
objects.

7. RIS?
 A radiology information system (RIS) is a computerized database
used by radiology departments to store, manipulate and distribute
patient radiological data and imagery. The system generally
consists of patient tracking and scheduling, result reporting and
image tracking capabilities.
 The Main function:
 Patient Registration and scheduling
 Patient List Management
 Interface with modality via Wordlists.
 Reporting and printout
 ……

8. RIS Workflow

9. RIS and PACS Workflow

10. ClearCanvas Workstation

11. ClearCanvas RIS
 Workflow

12. ClearCanvas PACS

13. Thanks!
CONTACT INFO...
Nguyễn Văn Hưng hungnv038@gmail.com