Annotation and Image Markup : Take AIM at Images! David S. Channin M.D. Associate Professor of Radiology Chief, Imaging Informatics Northwestern University.

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Presentation transcript:

Annotation and Image Markup : Take AIM at Images! David S. Channin M.D. Associate Professor of Radiology Chief, Imaging Informatics Northwestern University Feinberg School of Medicine Department of Radiology Daniel Rubin M.D. Clinical Assistant Professor of Radiology Research Scientist Stanford University Department of Medical Informatics Principal Investigators: Dr. Pat Mongkolwat  Vladimir Kleper  Skip Talbot Kaustubh Supekar

What is an AIM? Annotations are explanatory or descriptive information, generated by humans or machines, directly related to the content of a referenced image or images Image annotations let us capture information about the meaning of pixel information in images such that similar meaning in other images can be found and used. An image markup is the graphical symbols associated with an image and optionally with one or more annotations of that same image.

An Image

An Image and an Image Markup

An Image, an Image Markup and an Annotation The pixel at the tip of the arrow [coordinates (x,y)] in this image [DICOM: ] represents the Ascending Thoracic Aorta [SNOMED:A ]

An Image, an Image Markup and an Annotation in AIM Schema The pixel at the tip of the arrow [coordinates (x,y)] in this image [DICOM: ] represents the Ascending Thoracic Aorta [SNOMED:A ]

What is the solution? The caBIG AIM Project An ontology of image annotations An ontology of image markups An ontology defines concepts in a domain and the relationships between those concepts Use of controlled terminologies EVS, RadLex, SNOMED, LOINC, UCUM A set of translatable, standards-based representations

The Deliverables Two ontologies used to develop information models A DICOM S/R AIM Object and a caBIG object model of the DICOM S/R object HL7 CDA (xml) encoding of DICOM S/R object A software application to validate and transcode AIM annotations (ANIVATR) An AIM toolkit to create and render AIM annotations and markups Integrated into the eXtensible Imaging Platform

The Real Deliverables Two One ontology of both annotation and markup A (someday silver compliant) UML model of AIM Software to instantiate AIM XML Software to generate DICOM S/R AIM Object from AIM XML Software to generate HL7 CDA (xml) encoding of DICOM S/R object from AIM XML via HL7 CDA XML Schema A software application XIP Builder ScheneGrph and XIP modules to validate and transcode AIM annotations (ANIVATR) An AIM toolkit library to create and render AIM annotations and markups (Integrated into the eXtensible Imaging Platform)

The Deliverables 1Q 2007 Project Management Plan Communication Plan Draft IOSA Document Draft Reconciliation Document Final IOSA Document Final Reconciliation Document Quarterly Progress Report 2Q 2007 Draft Mechanism for Free Text Draft Mechanism for Arbitrary Calculation Final Mechanism for Free Text Final Mechanism for Arbitrary Calculation Sample InstancesSample Instances Quarterly Status Report 3Q 2007 Software DemonstrationSoftware Demonstration Import, validate, create, transcode, etc. Quarterly Status Report 4Q 2007 RSNA 2007 Demonstration Quarterly Status Report Lessons Learned

API Give me the XML schema for an XYZ AIM (Driven by Protégé) Constrain vocabulary choices Set the … Get the … Save As.. DICOM S/R XML/CDA

Summary Image annotations and markups are critical to “tagging” content in medical images Such that images containing similar content can be identified The AIM project will deliver an information model and encoding standards for the structure and content of image annotations AIM annotations will be critical components of future image based research.