Материал: part21

4 Symbols and Abbreviations​

The following symbols and abbreviations are used in this Part of the Standard.​

AIM​ Annotation and Image Markup​

DICOM​Digital Imaging and Communications in Medicine​

IOD​ Information Object Definition​

ISO​ International Standards Organization​

NCI​ National Cancer Institute​

NEMA​National Electrical Manufacturers Association​

OID​ Object Identifier (ISO 8824)​

SR​ Structured Reporting​

UCUM​Unified Code for Units of Measure​

UID​ Unique Identifier​

XML​ Extensible Markup Language​

XSLT​ Extensible Stylesheet Language Transformations​

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5 Conventions​

Terms listed in Section 3 Definitions are capitalized throughout the document.​

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A Transformation Between AIM and DICOM​

SR​

A.1 Scope and Field of Application​

NCI AIM objects that are constrained to specific use cases can be transformed to DICOM SR documents that are based on TID 1500.​

NCI AIM specifies a generic model for encoding structured information about medical images. The AIM model and its XML encoding​ are version specific. The version transformed in this document is Version 4 [Extending AIM]. Though AIM instances can be generated​ according to application-specific templates [ref. AIM template builder], such templates are too use-case specific to be detailed in the​ transformation described in this Part. Rather, common patterns of use implemented by well known implementations (ref. CC, ref​ ePAD) have been abstracted and are mapped as described in this document.​

DICOM SR specifies a generic model for encoding structured information about DICOM instances. DICOM TID 1500 Measurement​ Report specifies a basic DICOM SR report template for quantitative measurements and categorical statements for single identifiable​ patient subjects including regions of interest defined by spatial coordinates or segmentations.​

A.2 Use Cases​

The basic use case for the transformation from AIM to DICOM SR is exchange of quantitative and categorical information about​ DICOM images and regions of interest in DICOM images.​

AIM and DICOM SR instances both contain references to DICOM images, and both make use of references to other types of DICOM​ instances such as segmentations. The flow of information between systems that might make use of a conversion between AIM and​ DICOM SR instances is considered in Figure A.2-1.​

DICOM Image

Voice Recognition

Reporting System

Legend: Convert

Send

Reference

Figure A.2-1. Annotation Creation and Transformation​

Various different transformation scenarios should be considered:​

a.​Transformation of a complete AIM instance to a complete DICOM SR Measurement Report. The receiver optionally selects rel-​ evant parts of the transformed document for further processing or static or interactive visualization by the user.​

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