how to set up a system for teaching files and clinical trials medical imaging resource center
TRANSCRIPT
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How to Set Up a System for Teaching Files and Clinical Trials
Medical Imaging Resource Center
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MIRC InfoRad Courses
How to Set Up a System for Teaching Files and Clinical Trials
How to Author MIRC Teaching Files
MIRC Case Studies: Using MIRC for Education and Research
Web Classroom Sessions
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MIRC Objective
Support the production, storage, indexing and distribution of medical imaging resources:
– Teaching files– Scientific & technical documentation– Research images & datasets– Clinical trials data
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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.
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MIRC Information Formats
Images: DICOM, GIF, JPEG, PNG
Anything that is displayable by a web browser
Hyperlinks to other web content
Pointers to files for downloading
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The MIRC Community
InternetInternet
ServerServer
IndexMIRC Sites
ServerServer
Index
RSNA
User
ServerServerIndexMIRC Storage Service:- Document Authoring- Document Storage- Document Indexing- Web Server
MIRC Query Service:- Access to the community
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The RSNA MIRC Software
Query Service
Storage Service
- Storage Service - XML Server
- Submit Service - Author Service
- DICOM Service - Admin Service
File ServicePrivate and public file cabinets
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Query Service
Standard query form31 defined query fields:
Free text Clinical content
Document attributes Image attributes
Document content Patient attributes
Links to Storage Service Functions
Queries a single site, selected sites, or the entire community
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Query Service
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Query Service
Two display formats for query results:Standard query results
Title (hyperlink)
Author
Abstract
Case NavigatorRandom or ordered
Known and unknown presentations
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Standard Query Results
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The Case Navigator
Intended for teaching file cases
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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
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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
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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
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Display Formats
Page
Tab
MSTF
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Submit Service
Allows users to upload MIRC documents to a storage service
– Supports connections from client-side authoring tools
– Supports uploading documents via a browser– Accepts uploads in the format exported by
the XML Server
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Author Service
Allows users to create MIRC documents directly on the Storage Service
Supports multiple templates to allow for the creation of different kinds of documents
Links to the File Service for inserting links to images and other documents
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What goes in a teaching file case?
Whatever you want:History Differential Diagnosis
Findings Discussion
Diagnosis Quizzes
References
Images, drawings, videos, audios, …
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Admin Service
Allows administrators to manage a Storage Service 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
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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
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The File Service
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Demonstration
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XMLServerXMLServer
OS FileOS FileSystemSystem
SubmitSubmitServiceService
InputInputQueueQueue
StorageStorageServiceService
MIRCMIRCIndexIndex
AdminAdminServiceService
HTTPHTTPExportExport
HTTPHTTPImportImport
AuthorAuthorServiceService
FileFileServiceService
DICOMDICOMExportExport
DICOMDICOMImportImport
Ob
jec
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Pro
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MIRCMIRCAnonymizerAnonymizer
MIRCMIRCAnonymizerAnonymizer
DICOMDICOMImportImport
QueryQueryServiceService
DatabaseDatabaseExportExport
The Components of a MIRC Site
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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)
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DICOM Service
Automatic trial patient ID generationConnection to other DICOM Services for clinical trials
– Support for encrypted communications (SSL)
DICOM import / DICOM exportHTTP(S) import / HTTP(S) exportDatabase export
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Database Interface
Links to an externally developed database
Provides classes for interrogating:– DICOM objects– Metadata files:
• XML• ZIP (with manifest)
Anonymization for DICOM and XML objects
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FCDICOM
FCDICOM
FCDICOM
PIDICOM
PI
DICOM
MIRC Clinical Trial Configuration
MIRC FieldCenter Application:- Image reception- Anonymization- Transmission to PI
MIRC Site:- Image reception- Image Storage- Transfer to PACS and/or workstations
Firewalls
InternetHTTPHTTPS
Database
HTTP
HTTP
DICOM
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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…
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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
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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
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The FieldCenter Application
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The FieldCenter Application
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The FieldCenter Application
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The FieldCenter Application
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The FieldCenter Application
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The FieldCenter Application
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The FieldCenter Application
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The RSNA MIRC Software
Available on the RSNA MIRC site (mirc.rsna.org)– Click the Downloads link in the header
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The RSNA MIRC Software
Runs on Mac, Windows, LinuxThree components:
Java / Tomcat / MIRC
All components are freeMIRC Users Group meetings:
11/28 1:30 - 3:3012/1 12:30 - 2:30
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Questions/Answers & Help
RSNA Forums:– http://forums.rsna.org
– User Comments, Questions and Answers– RSNA MIRC Software Announcements– MIRC Implementers’ Corner– MIRC Technical Review Committee
Subscribe on the Forums site
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