Picture Archiving and Communication Systems (PACS)
for Medical Imaging


Part of the Course: Medical Imaging Science

University of Minnesota Graduate Program in Biophysical Sciences and Medical Physics
BPHY 8148, Spring Quarter 1998

PACS Lectures: Tues, May 26 & Thurs, May 28
9:00am - 11:30am, Room:Mayo B216

E. Russell Ritenour, PhD
Office: Mayo B235, Phone: 626-0131, E-mail: riten001@tc.umn.edu
Office Hours: By appointment

Readings for the PACS lectures on reserve in the Dept. of Radiology

Links to information and other resources on the world wide web

Assignment - Due June 5, 1998

Lecture Outline:

I. Introduction to PACS
1. What is it supposed to do?
2. Types of PACS
a. Remote Printing
b. Mini-PACS
c. Teleradiology
d. Full-scale filmless


II. Key Components
1. Image Acquisition
2. Storage and Retrieval
3. Local and Wide Area Transmission Networks
4. Display and Interpretation
5. Quality Control


III. Key Considerations in Planning for PACS
1. Statement of Goals
2. Cost analysis
a. Monies allocated
b. Payback Analysis or Deficit Justification
3. Personnel
4. Interaction with vendors
a. Imaging modality vendors
b. Information system vendors

IV. Image Characteristics
1. Digital Images
a. Spatial Resolution
b. Bit Depth / Contrast Resolution
2. Video
3. Data Compression


V. Telecommunications

1. Regulatory Authority
2. Existing Applications
a. Telephone
b. AM and FM Radio
c. Television (VHF and UHF)
d. Cellular Telephone and Personal Communications
e. Digital Satellite for Audio and Video
3. Transmission Modalities
a. Twisted Pair (base-T)
b. Co-axial Cable
c. Optical Fiber
d. Microwave Relay
e. Radio Relay
f. Satellite (C and K band)


VI. Cost of PACS Systems
1. Transmission
2. Image Capture
3. Workstations
4. Gateway or Fielserver
5. Service
6. Storage


VII. Archive Strategies
1. Local Storage
2. Optical Jukebox
3. Tape Library
4. Redundant Array of Independent Disks (RAID)


VIII. Standardization
1. Interface vendors: e.g.,Merge,Dejarnette
2. Open Systems Philosophy and Interface Standards
3. American College of Radiology National Electrical (Equipment) Manufacturer's Association Digital Imaging and Communications in Medicine Standard (ACR-NEMA: DICOM)