PACS Chapter 8 P icture A rchiving and C ommunication S ystem.
16
PACS Chapter 8 Picture Archiving and Communication System
-
Upload
roberta-armstrong -
Category
Documents
-
view
217 -
download
0
Transcript of PACS Chapter 8 P icture A rchiving and C ommunication S ystem.
PACSChapter 8
Picture Archiving and
Communication System
Anatomy of PACS
Figure 8-1
Digital acquisition
Display workstations
Storage devices
Electronic version of reading room and the file room
Digital imaging and communication in medicine
AKA: DICOMEach modality and PACS communicate via DICOM
3 fundamental parts of PACS
1-Image acquisition
US, CT,MRI, Nuc Med and finally general radiography
Increased images per patient promoted the use of extra stations
Many work station gave way to full PACs systems
3 fundamental parts of PACS
2 Display workstation
Receives images from archive or from various radiology modalities
PACs application software for image manipulation (minor to more complex techniques)
3 fundamental parts of PACS
Archive Servers
Electronic file room
Short term or long term storage
Controls the PACs workflow
Archive receives images before they go to radiologist
Why is this something the radiographer should be aware of?
COMPARE THE FILM BASED WORK FLOW TO WHAT YOU DO NOW
PACS ARCHITECTURE
Client/server-based system
All images from all modalities go to a central archive serverImages are then sent to the reading room
Advantages?
Disadvantages?
PACS ARCHITECTURE
DISTRIBUTED SYSTEMS OR STAND ALONE
Images sent to a designated reading station.
MRI to one station, CT to another
Advantages?
Disadvantages?
PACS ARCHITECTURE
Web based system
Similar to client/serve application except the application software is web based
Advantages?
Disadvantages?
DISPLAY WORKSTATIONS
Number of monitors required by radiologists have reduced-why?
LCD to soon replace all CRT tubes-why?
CT viewed on a 1K
CR/DR viewed on 2K
Mammo – 5K
Let’s review resolution
Reading stations
Radiologist
Physician ReviewCan read report next to images
Tech QC stationWhat can be done here?
What should be confirmed here?
What is RIS?
FILE ROOM/IMAGE MANAGEMENT STATIONS
For image management purposes
Look up examinations for other physicians
Correct demographics before sent to archive
FUNCTIONS
Navigation functions
Hanging protocols
Study Navigation
Image manipulation and enhancement functions
What are these?
ROI= region of interest
Patient demographics can be modified at the QC station, the reading station and the file room station
Why are there so many places that one can modify patient info?
Refer to figure 8-1
ADVANCED FUNCTIONS
Stitching
Image post processing
