nuclear medicine data communications
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Topic 10 Nuclear Medicine Data Communications
• Data Formats: Dicom and Interfile
• Data Communication (Nuclear Medicine Department and Hospital) -PACS
• Data Access (From Physician’s Home) - Teleradiology
• World Wide Internet
• Medical Resources on the Internet
File and Data Formats
• Interfile
• DICOM
• MEDICOM
• IPI (Image Processing Interchange)
• PCX/GIF/TIFF
Domain and Model
• Domain– What are we trying to do; Where are we trying
to do; Why are we trying to do
• Model– Application layer; Presentation; Session;
Transport; Network; Data Link; and Physical
Domains
• DICOM: – Radiological Image Transfer
• MEDICOM: – Image Handling in Medicine
• IPI: – Image Transfer
DICOM Model
MEDICOM Model
Objects in IPI Format
File Format
• Bitmap of Display
• Original Raw Data
• Information About the Raw Data
• Clinical Information
• Patient Information
• Acquisition information
• Etc.
Data Communications
• Hospital Information System
• Communication with Other Systems
• Data Aspects
• System Aspects
• A Real Implementation
Hospital Information System
• A Centralised Computer System
• Highly Optimised and Limited Flexibility
• High Degree of Reliability
• Primary Data: Patient data; Administrative; and Clinical Data
• Stand by System B
Communication With Other Systems
• Serial Line Connection (point to point, small message)
• Ethernet Connection (suitable for large amount of information transfer)
• Fibre Optics (High Speed)
• WAN/LAN Based (security).
Data Aspects
• Location and Distribution of Data
• Integrity(reliability, identification, hand-shake algorithm)
• How up to date (refresh rate)
• Encryption and/or Compression
• Availability.
• Storage (central and distributed)
System Aspects
• Local System (Data Accuracy, Security).
• Total System (Management, Sub-task, Security officer, Application specialist)
• Network management (Physical Location, etc)
• Other Connection(serial lines,Dedicated parallel lines or private ethernet, Modem).
A Real Implementation
Archiving Scheme
Schematic Data Flow In
Data Flow Out
Data Access From Physician’s Home
• Modem Connection
• Data Communication Protocols
• Display Packages
World Wide Network
• List Servers
• FTP
• Usenet Newsgroups
• Server Programs
The Inter Connection
E-mails
List Servers
File Transfer Protocols
Usenet Newsgroups
Server Programs
Archie Servers
Telnet Gopher Sites
Internet Resources