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MIRC Overview

MIRC Overview. Medical Imaging Resource Center John Perry RSNA 2007. RSNA2007 MIRC Courses. Overview of the RSNA MIRC Software Installing MIRC on Your Laptop Using MIRC for Clinical Trials Hands On: Using the RSNA Teaching File. MIRC Project Objective.

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MIRC Overview

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  1. MIRC Overview Medical Imaging Resource Center John Perry RSNA 2007

  2. RSNA2007 MIRC Courses Overview of the RSNA MIRC Software Installing MIRC on Your Laptop Using MIRC for Clinical Trials Hands On: Using the RSNA Teaching File

  3. MIRC Project Objective Support the production, storage, indexing and distribution of medical imaging resources: • Teaching files • Scientific & technical documentation • Research images & datasets • Clinical trials data

  4. MIRC Concepts The key concepts: • MIRC is a community of cooperating libraries on the Internet. • The libraries cooperate by supporting a common query mechanism. • The query mechanism allows users to find information wherever it is stored.

  5. MIRC Information Formats Images: DICOM, GIF, JPEG, PNG, TIFF Anything displayable by a web browser Hyperlinks to other web content Pointers to files for downloading

  6. Index Server Internet Index Server The MIRC Community User • MIRC Query Service: • Access to the community Index MIRC Sites Server • MIRC Storage Service: • - Document Authoring • Document Storage • Document Indexing • Web Server RSNA

  7. The RSNA MIRC Software Query Service Storage Service Document index and storage Author services DICOM services File Service Public and private file cabinets

  8. Query Service Standard search form 31 defined fields: Free text Clinical content Document attributes Image attributes Document content Patient attributes Links to other services Queries a single site, selected sites, or the entire community

  9. Query Service

  10. Query Service Two display formats for query results: Standard query results Title (hyperlink) Author Abstract Case Navigator Random or ordered Known and unknown presentations

  11. Standard Search Results

  12. The Case Navigator Intended for teaching file cases

  13. Storage Service Stores and indexes documents A single MIRC site can have multiple Storage Services for different purposes • Teaching files for each department/specialty • Individual services for each clinical trial

  14. XML Server Serves documents to users on the web Transforms XML files to other formats Multiple display formats (page, tab, mstf) Exports documents and datasets to users

  15. XML Server Provides access control for: • read, update, export Restricts access for: • owners, users, roles (user groups), public Supports private (owner-only) sections of otherwise public documents

  16. Display Formats Page Tab MSTF

  17. Author Services • Basic Authoring Tool • For rapid creation of documents from files on the client computer • Advanced Authoring Tool • Supports multiple document templates • Links to the File Service for inserting links to images and other files on the server

  18. What goes in a teaching file case? Whatever you want: History Differential Diagnosis Findings Discussion Diagnosis Quizzes References Images, drawings, videos, audios, …

  19. TCE Service Supports the IHE Teaching Files and Clinical Trials Export integration profile • Allows image selection and text entry directly on PACS diagnostic workstations (Agfa, Fuji, GE) • Receives submissions from IHE TCE Export Manager applications (Agfa, MIRC) and automatically creates MIRC documents

  20. Zip Service Supports the creation of multiple MIRC documents from zip files • Folder hierarchy with each folder representing a single case or group of cases • Special processing for images and text files Originally intended for preloading large numbers of cases from pre-MIRC teaching files

  21. Submit Service Allows users to upload MIRC documents to a storage service • Supports connections from client-side authoring tools • Supports uploading MIRC documents through a browser • Accepts uploads in the format exported by the XML Server

  22. DICOM Service Receives DICOM objects from PACS, workstations, modalities, etc. Automatic document generation • Images grouped into documents by study • Template-driven • Automatic JPEG generation from DICOM • Programmable anonymization (de-identification and re-identification)

  23. Admin Service Allows administrators to manage a MIRC site through a browser • Control the documents on the Storage Service • Adjudicate the input queue for non-publishers • Configure the Storage Service and DICOM Service • Control and monitor the DICOM Service • Manage users and roles

  24. File Service Each authenticated user has a private file cabinet for storage of files of any kind One public file cabinet for the site Public file cabinet receives DICOM objects from PACS, modalities, workstations • Separate anonymizer Author Service connection

  25. The File Service

  26. MIRC Site Services Submit Service Zip Service TCE Service HTTP Export XMLServer Input Queue Admin Service HTTP Import Object Processor DICOM Export OS File System Storage Service MIRC Index DICOM Import Query Service MIRC Anonymizer DICOM Import File Service Author Services Database Export MIRC Anonymizer

  27. DICOM Service Receives DICOM objects from PACS, workstations, modalities, … Automatic document generation • Images grouped into documents by study • Template-driven • Automatic JPEG generation from DICOM • Programmable anonymization (de-identification and re-identification)

  28. DICOM Service Automatic trial patient ID generation Connection to other DICOM Services for clinical trials • Support for encrypted communications (SSL) DICOM import / DICOM export HTTP(S) import / HTTP(S) export Database export

  29. Database Interface Links to an externally developed database Provides classes for interrogating: • DICOM objects • Metadata files: • XML • ZIP (with manifest) Anonymization of DICOM and XML objects

  30. Clinical Trial Configuration FC DICOM Firewalls Database PI Internet HTTP HTTPS HTTP DICOM FC DICOM PI DICOM FC DICOM DICOM HTTP • MIRC Site: • Image reception • Image Storage • Transfer to PACS and/or workstations • MIRC FieldCenter Application: • Image reception • Anonymization • Transmission to PI

  31. Lessons from Field Centers IT departments are overworked. Network configuration can be a problem. • Firewalls, proxy servers, VPNs Running a MIRC site at a Field Center just for image acquisition is overkill. Therefore…

  32. The FieldCenter Application Runs at the image acquisition site Receives images and metadata files via the DICOM and HTTP(S) protocols Anonymizes images and metadata files Transmits to the PI MIRC site via HTTP(S) Automatically links to the PI MIRC site for remapping tables and software updates

  33. Anonymization Removal of Protected Health Information (PHI) Remapping of PHI to trial-specific identifiers Central vs. distributed remapping tables are an issue in a multi-site trial Metadata anonymization may also be required in some trials

  34. The RSNA MIRC Software

  35. The RSNA MIRC Software Runs on Windows, Mac, Linux, Solaris Three components: Java / Tomcat / MIRC All components are free MIRC Users Group meetings: 11/25 1:30 - 3:30 E251 11/29 12:15 – 1:45 E257

  36. Questions/Answers & Help The MIRC Wiki • http://mircwiki.rsna.org RSNA Forums: • http://forums.rsna.org • User Comments, Questions and Answers • RSNA MIRC Software Announcements • MIRC Implementers’ Corner Subscribe on the Forums site

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