Difference between revisions of "Radiology Image Sharing Roadmap"
| Line 120: | Line 120: | ||
| Sink | | Sink | ||
| Keep-or-Toss | | Keep-or-Toss | ||
| − | | Sink ( | + | | Sink (CD) |
| none | | none | ||
| | | | ||
| Line 127: | Line 127: | ||
|- | |- | ||
| XDS-I | | XDS-I | ||
| − | | Query ( | + | | Query (SOAP) |
| Query | | Query | ||
| Pull (C-Store/WADO) | | Pull (C-Store/WADO) | ||
| none | | none | ||
| + | | | ||
| + | |- | ||
| + | | colspan="6" align="center" style="background:#dddddd" | '''Proposed Additions''' | ||
| + | |- | ||
| + | | XDS-I.b | ||
| + | | Query (MTOM) | ||
| + | | Query | ||
| + | | Pull (C-Store/WADO) | ||
| + | | none | ||
| + | | | ||
| + | |- | ||
| + | | PDI+ | ||
| + | | Sink | ||
| + | | Keep-or-Toss | ||
| + | | Sink (CD/DVD/USB) | ||
| + | | none | ||
| + | | | ||
| + | |- | ||
| + | | Img Mgt | ||
| + | | ? | ||
| + | | ? | ||
| + | | ? | ||
| + | | Delete/Update/Replace | ||
| + | | | ||
| + | |- | ||
| + | | XCA-I | ||
| + | | ? | ||
| + | | ? | ||
| + | | ? | ||
| + | | ? | ||
| | | | ||
|- | |- | ||
|} | |} | ||
| − | |||
| − | |||
| Line 142: | Line 170: | ||
** CPI, PGP | ** CPI, PGP | ||
** Image Fusion | ** Image Fusion | ||
| + | |||
| + | ===Proposed Image Sharing Profiles === | ||
| + | |||
| + | {| style="width:95%" border="1" cellpadding="3" | ||
| + | ! Profile | ||
| + | ! Notification | ||
| + | ! Selection | ||
| + | ! Access | ||
| + | ! Update | ||
| + | ! Transport | ||
| + | |- | ||
| + | | colspan="6" align="center" style="background:#dddddd" | '''"Local" Network''' | ||
| + | |- | ||
| + | | SWF (Mod-PACS) | ||
| + | | Sink (C-Store) | ||
| + | | Keep | ||
| + | | Sink (C-Store) | ||
| + | | PIR | ||
| + | | | ||
| + | |- | ||
==What are we trying to accomplish== | ==What are we trying to accomplish== | ||
Revision as of 02:23, 1 October 2008
<WARNING: Half-baked sketch follows>
Aspects of Image Sharing
Image Sharing should address Awareness, Selection and Access of image data.
There are different viable approaches to each of those three aspects of sharing.
Awareness
Knowing there are images that might be of use.
- Sink Approach - depend on systems to push potentially useful images.
- Notification Approach - depend on systems to tell you about potentially useful images.
- Query Approach - ask systems what images are available
- Subscribe Approach - sort of a cross between Query and Notification
Selection
Choosing images to make use of.
- Query Approach - evaluate/select based on image details returned in the query
- Notification Approach - see above; trust other system to have selected appropriately
- Keep-or-Toss Approach - get all potential images, evaluate directly and toss unneeded ones
Access
Getting the images.
- Sink Approach - see above
- Pull Approach - retrieve selected images
Update
How you know about updates to images you have copies of.
- Notification Approach
- New Copy?
Transport
How the images are conveyed
- Network vs Media
- Synchronous vs Asynchronous
- Whole vs Incremental
Different approaches have advantages and disadvantages depending on many factors such as network bandwidth, local storage capacity, image persistence times, immediacy of access needs, quality of image metadata, dependence on new software/systems, configuration/maintenance overhead, security needs, privacy needs, etc., etc., etc.
Do we need to elabourate whether access is direct from the source, or indirect through an intermediary (sync issues)?
Do we need to elabourate whether access is synchronous/immediate, or asynchronous/delayed?
What do we have to work with
DICOM Mechanisms
- C-Store
- push across a typical network
- Retrieve
- pull across a network, basically a C-Store invoked by the receiver
- Part 10 - Files
- almost by definition push, asynchronous
- profiled for a large variety of media: CD, DVD, USB, ZIP, Email, FTP
- with/without compression
- includes a MIME type
- Supplement 119 - Instance and Frame Level Retrieve
- Part 18 - WADO - Web Access to Persistent DICOM Objects
- HTTP based pull across the web
- WG-10 Web Services
- NADO - Notification of Availability of DICOM Objects
- QIDO - Query by ID for DICOM Objects
- Supplement 118 - Application Hosting
- includes mechanisms for accessing objects
- File based or abstract model
- (DICOM Print)
- Push to hardcopy
Current Image Sharing Profiles
| Profile | Notification | Selection | Access | Update | Transport |
|---|---|---|---|---|---|
| "Local" Network | |||||
| SWF (Mod-PACS) | Sink (C-Store) | Keep | Sink (C-Store) | PIR | |
| SWF (PACS-Disp) | Query (C-Find) | Query (C-Find) | Pull (C-Store) | none | |
| ARI | Query? | Query (C-Find) | Pull (C-Store) | none | |
| TCE (PACS-Dest) | Sink (KIN Tag) | Keep-or-Toss | Sink (C-Store) | none | |
| Sneakernet | |||||
| PDI/IRWF | Sink | Keep-or-Toss | Sink (CD) | none | |
| "Distributed" Network | |||||
| XDS-I | Query (SOAP) | Query | Pull (C-Store/WADO) | none | |
| Proposed Additions | |||||
| XDS-I.b | Query (MTOM) | Query | Pull (C-Store/WADO) | none | |
| PDI+ | Sink | Keep-or-Toss | Sink (CD/DVD/USB) | none | |
| Img Mgt | ? | ? | ? | Delete/Update/Replace | |
| XCA-I | ? | ? | ? | ? | |
- Other Referencing
- KIN
- CPI, PGP
- Image Fusion
Proposed Image Sharing Profiles
What are we trying to accomplish
Scenarios/Use Cases
Observed Needs/Failures
| Profile | Notification | Selection | Access | Update | Transport |
|---|---|---|---|---|---|
| "Local" Network | |||||
| SWF (Mod-PACS) | Sink (C-Store) | Keep | Sink (C-Store) | PIR | |