Transcript What`s New in DICOM

What’s New in DICOM
Robert Horn
Agfa Healthcare
2006 Extensions
Upgrades to existing modalities
Additions of new modality objects
Safety and Security
User Interface support
Coordination with other standards
SPIE, 20 February 2007
Upgrading Modalities
First, MR
Then, CT
Then, XA/XRF
Now, 3D Xray
 Continues use of multi-frame with functional group macros to
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capture more frame to frame relationships than just time.
Concatenations for improved network performance and streaming
Incorporate standard DICOM attributes to describe the 3-D
information gathered by modern X-ray equipment.
Tomographic Synthesis, etc. supported
Final Text (January 2007)
SPIE, 20 February 2007
Ion Therapy
A new SOP class to describe the use of ion beam radiation
therapy machines.
 Extensive detail on beam setting options
 Enhancements to patient position and fixation devices that will be
retrofitted to other therapy systems.
 Fits into the therapy workflows already defined for other kinds of
radiation therapy machines.
SPIE, 20 February 2007
CT/MR Cardiovascular
Report
An evidence document that captures measurement data
derived from either CT or MR observations of the
cardiovascular system.
The report incorporates;
 Patient characteristics
 Relevant images references
 Procedure summaries
 Automatically as well as manually detected findings
 Information about the progress of finding properties over time (by
comparison with predecessor preceding reports)
 Observational Conclusions
SPIE, 20 February 2007
JPIP
A transfer syntax is defined for supporting the JPEG
Progressive Interactive Protocol.
This syntax is intended for supporting interactive access to
large images or over slower links, and is not well suited to
transfer of complete images with full fidelity.
SPIE, 20 February 2007
Segmentation
This supplement defines voxel oriented tissue
segmentations.
Segmentation allows fractional voxel assignment:
e.g, 60% blood, 30% bone, 20% tissue.
IOD defines algorithm names and source data
used. It does not include algorithm
specifications.
IOD does not define presentation or visualization
parameters.
A surface based segmentation IOD is in
preparation.
SPIE, 20 February 2007
Deformable Spatial
Registration
This is an extension to the already define
rigid spatial registration
An array of deformation mapping vectors
is provided.
Deformable registrations are not expected
to be reversible in general. If the
registration is to be used reversibly, two
registration IODs are needed.
SPIE, 20 February 2007
Unified Procedure Steps
Out for Public Comment
Merges Worklist Management/Performed
Procedure Step
 A single IOD that combines both scheduled and performed
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attributes
C-FIND to query worklists
N-CREATE to create new procedure steps
N-GET/N-SET to update
N-EVENT-REPORT to monitor and report progress
Intended to meet the needs of
 Radiation Therapy Scheduling and Monitoring
 Scheduling and Monitoring CAD systems
 Proposed new scheduling activities
SPIE, 20 February 2007
RT Worklist
First usage of Unified Procedure Step
Out for public comment
Provides automated worklist management
for the integration of multi-site and multisystem radiation therapy.
SPIE, 20 February 2007
Substance Administration
Verification of Substance Administration
 Support 5-Rights process
 Operational Concept
• Scan patient ID (bracelet, etc.)
• Scan substance (drug, etc.)
• Query for permission to administer
• Receive YES, Warnings, or NO
Substance Information Query
 Scan substance
 Obtain substance description and documentation
Assumes existance of an external
Patient/Substance Information system that
monitors prescriptions, administrations, allergies,
etc.
SPIE, 20 February 2007
Encapsulation of CDA
Similar to encapsulated PDF
Encapsulates HL7 CDA documents,
providing a few crucial extracts (e.g.
Patient ID, Document Title) so that a
DICOM PACS archive can be used to
storage and retrieve HL7 CDA documents.
SPIE, 20 February 2007
Veterinary Extensions
These extensions rephrase the definition
of some existing terms, like “patient
name” to accommodate typical veterinary
usages.
These extensions add attributes for
“breed”, “digital identifier”, etc.
SPIE, 20 February 2007
Tracking IT Improvements
IPv6 support
Small network configuration management
Email Transport
 ZIP file format to hold DICOMDIR and DICOM files
 Email transport
 Can be either automated or manual. In summary,
“create DICOM CD image, ZIP it, attach to an
email”
 In use by Dentistry and IHE
SPIE, 20 February 2007
New efforts
Enhancements to Query and Retrieve especially
intended to manage retrieval of subsets from
large multi-frame objects
Graphic Displays
 Structured Display
 Display Calibration communication
 Enhanced Presentation state
Colon CAD
Breast Tomosynthesis
Application Hosting (draft for trial use this year)
SPIE, 20 February 2007
New Efforts (contd)
Ophthalmology
 Ophthalmic Tomography (OCT and other technologies)
 Refractive Reports
Pathology
 revisions and clarifications to the specimen model
 Whole slide imaging (uncompressed raw slide images are
350 gibagyte to 3.5 Terabytes)
Cardiac
 Cardiac Stress Report
 Electrophysiology Report
SPIE, 20 February 2007
Web Site
http://medical.nema.org
 Presentations (like this one)
 Drafts, Minutes, etc.
 Public Comment Documents
 Letter Ballot Documents
 The Approved supplements and CPs
 The full DICOM Standard
Publicly available
SPIE, 20 February 2007