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North American 2010 Connectathon & Interoperability Showcase Series. Radiology Update Profiles for Media Exchange. Chris Lindop Interoperability & Standards Mgr GE Healthcare Radiology Planning Committee Co-chair Radiology Technical Committee Co-chair. Profiles for Imaging Media Exchange.
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North American 2010 Connectathon & Interoperability Showcase Series Radiology UpdateProfiles for Media Exchange Chris Lindop Interoperability & Standards Mgr GE Healthcare Radiology Planning Committee Co-chair Radiology Technical Committee Co-chair
Profiles for Imaging Media Exchange IHE two core profiles for Imaging media exchange • Portable Data for Imaging (PDI) • Standardize CD media • Import Reconciliation Workflow • Fix demographics, IDs and codes Now include: • Portable Data for Imaging (PDI) – Extensions • New media(DVD & USB), Compression & Security • IHE Basic Image Review (BIR) Profile • Baseline behavior for viewer software
Portable Data for Imaging (PDI)– Value Statement You may be part of the problem. Easier, perhaps.
Portable Data for Imaging (PDI) Compatibility requirements • Standard CD format and file system • Consistent disc organization • Use most genericDICOM media profile • Images MUST be present in DICOM • May have copies as “web content” (i.e. JPEGs) • Avoid most common mistakes (highlighted)
PDI –Extensions DVD Additional Media: Compression • Optionally allowed • Both Lossless and lossy specified; but lossless is recommended • On-board “Sender Software” recommended. Encryption • Optionally allowed; password-based or key-based • Please consider support needs before creating
PDI –Extensions Sending Software 1) Insert CD; Run Sending Software 2) “Enter Password:” 3) Sending Software Decrypts CD Images 4) “Enter Destination:” 6) Sending Software decompresses & convertsImages (as needed) 5) DICOM Association Negotiation 7) Send Images (C-STORE)
PDI - Extensions Actors/Transactions New Actor for PDI Portable Media Sender
New Media type Options • Baseline Media: CD • DICOM STD-GEN-CD Media Application Profile • New Media Options: • DVD Option • Creator Uses DICOM STD-GEN-DVD-JPEG or • DICOM STD-GEN-DVD-J2K Media Application Profile* • USB Option • Creator UsesDICON STD-GEN-USB-JPEG or • DICON STD-GEN-USB-J2K Media Application Profile* • Both options require support for compression • JPEG lossy and lossless • JPEG 2000 reversible and irreversible NOTE: DVD option will allow for CD Compression * Importer must support both Media Application Profiles
Privacy Protection Options • Privacy Protection Options • Standard Password-Based Encryption (PBE) • RSA Public Key Infrastructure (PKI) • Use the secure DICOM Media Application Profiles • STD-GEN-SEC-CD for CD • STD-GEN-SEC-DVD-JPEG or STD-GEN-SEC-DVD-J2K for DVD • STD-GEN-SEC-USB-JPEG or STD-GEN-SEC-USB-J2K for USB • Options require encryption of all DICOM files • including the DICOMDIR, and any files with Patient identifiable information • Note: Options NOT compatible with the Web Option • Media supplied viewers or sending SW must be capable of requesting • password (PBE option) or • use the RSA private key (PKI Option)
Portable Media Sender Option • Required when disk is encrypted (Privacy Protection Option) • Only required to be capable of decryption if encrypted • decrease risk of unreadable data by recipient • Transfers objects on the media • to an Image Manager and/or Report Manager • Reconciles key patient and study attributes • Decompresses instances if necessary • Decrypts instances if necessary • Required to convert multi-frame to single frame if necessary
“The Images are in the PACS but are messed up” The patient ID is wrong, it doesn’t come up in a query I can’t hang the new images with the old The unknown procedure codes mess up my hanging protocols The images aren’t linking to the EMR. Patient’s chart won’t come up Impact: Lost time Incomplete data Drags on effectiveness Import Reconciliation Workflow – Value Statement
Import Reconciliation Workflow (IRWF) During image import, details are fixed to match (or not conflict with) local values • Patient IDs, Name • Procedure Codes, Accession Numbers, etc. Two ways of getting demographics • DICOM Worklist Query • HL7 Patient Demographics Query
Basic Image Review (BIR) BASIC Image Review Defines a Baseline • Feature set • Look and feel • Performance* • Minimum Platform* “Advanced” Button = Show me what else you can do * PDI-Basic viewer Option only
Basic Image Review (BIR) – Value Statement Facilities distribute images; Physicians review them • Often a physician has own viewer but may need to rely on the media-supplied veiwer Rising frustration; too often the viewer: • requires installation on a locked down machine • does not successfully run • starts up too slowly • does not successfully load the images • warns the images are of “non-diagnostic quality” • is missing some basic critical function • has Yet Another GUI where basic operations are non-obvious Impact: • delayed care, inaccessible information, repeat examination and irradiation, and poor use of valuable clinician time.
Basic Image Review (BIR) Trial Implementation Spec released Potential applications of BIR Spec. • Media Viewer (PDI Option) • Requires a BIR Compliant viewer be placed on media • Clinician’s Desktop Viewer • Basic Radiology Review Station • Web Portal
SOP Class Support Notes: • PDI Basic Viewer Option - requires only SOP Class support on media • non-PDI requires a partial display requirement for SOP classes not listed
Simple Restricted Feature Set • Display of grayscale and color images from any modality • basic grayscale or color rendering of the images as encoded • without additional image processing • visual navigation of series through the use of thumbnails • side-by-side comparison of at least two sets of image • with synchronized scrolling, panning and zooming • annotation of laterality, of body part and sagittal side, orientation • Simple nuclear medicine windowing mode • spatial localization of cross-sectional images • annotation of demographics, management and basic technique • simple measurements of linear distance and angle • cine capability • Example: cardiac US, XA, CT or MR • Reference ICONS are provided to enhance common look & feel • NO FUSION or MPR
Performance Requirements NOTE: PDI- BIR Option Only Reference platform and image set specified for testing Large data-set and small data set available in the IHE website