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CP-1073 Date 2011/01/24

Disconnect Dimension Organization from Frame of Reference


Status: Final Text

DICOM Correction Item

Correction Number CP-1073

Log Summary: Disconnect Dimension Organization from Frame of Reference

Type of Modification

Correction



Name of Standard

PS 3.3 – 2009



Rationale for Correction

The Dimension Organization IE has a 1-to-n relationship with a Frame of Reference in figure 7.5.1. Nowhere in the description is this limitation described. It is questionable if this limitation is a requirement. Dimensions in a dimension organization may not be connected to a FoR and span across more than one. Proposed is to remove the relationship from the figure.



Sections of documents affected

PS 3.3 7.5



Correction Wording:


7.5 organizing large sets of information


For the purpose of accommodating large sets of frames in Multi-frame Image SOP Instances the Real-World Entity Relationship Diagram has been extended to describe the relationships of these instances: Concatenation (see Section 7.5.1) and Dimension Organization (see Section 7.5.2). Figure 7-5.1 depicts the additions to Figure 7-2.

Figure 7.5-1


EXTENSION OF THE REAL-WORLD MODEL WITH CONCATENATIONS AND DIMENSIONS

7.5.1 CONCATENATION



7.5.2 DIMENSION ORGANIZATION


The Dimension Organization contains a set of dimensions. A dimension is a set of attributes which change on a per-frame basis in a manner which is known before the image is acquired, which are defined by the generating application and which are especially intended for presentation. Other attributes may also change on a per-frame basis but if they are not present in the Dimension Organization, they are not considered significant as a dimension for organizational purposes.

Receiving applications shall use the order of dimensions for guidance when presenting images if the Multi-frame Dimension Module is present. The first item of the Dimension Index Sequence shall be the slowest varying index.



Note: See Multi-frame Dimension Module section (C.7.6.17) for an example.




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