| DICOM PS3.16 2026c - Content Mapping Resource |
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The Key Object Selection Template is intended for flagging one or more significant images, waveforms, or other composite SOP Instances. Key Object Selection contains:
coded document title stating the reason for significance of the referenced objects in the Key Object Selection,
optional free form text comment in an explicitly identified language,
optional identification of the observer (device or person) that created the Key Object Selection, and
optional Image Library to further describe the related instances.
For instance, when this Template is used to identify images rejected for quality reasons, the device or person performing the quality assessment is identified in observation context items (invoked through TID 1002 “Observer Context”). The reason for rejection can be included both as a code used as a concept modifier for the document title, and as text description.
The order of object references may be significant, e.g., when the title concept is "For Conference".
Instances referenced in a Key Object Selection Document may be securely referenced by Digital Signature or MAC mechanisms within the SR Document General Module (see PS3.3).
The Template can only be instantiated at the root node and cannot be included in other Templates. The Template is not extensible; that is, no other Content Items may be added to this Template, or the Templates that are included, recursively, except for TID 1600 “Image Library”, which may be extended.
Table TID 2010. Key Object Selection
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IF Row 1 Concept Name = (113001, DCM, "Rejected for Quality Reasons") or (113010, DCM, "Quality Issue") |
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IF Row 1 Concept Name = (113013, DCM, "Best In Set") |
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IFF Row 1 Concept Name = (131560, DCM, "Manifest with Description") |
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Procedure Code(s) (scheduled and/or performed) associated with the referenced SOP Instances. |
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Purpose of reference shall not be present. All SOP Instances referenced in the Current Requested Procedure Evidence Sequence (0040,A375) shall also be referenced in Rows 8, 9 and 10. When the Row 1 Concept Name is (131560, DCM, "Manifest with Description") then all referenced instances shall be in the same Study as the KOS. |
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Though TID 2010 itself is non-extensible, the included TID 1600 is extensible. The Image Library may contain an entry for any instance referenced in Rows 8, 9 and 10. Entries are not required for all instances; for example, only a representative image from each Series might be described. The Image Library shall not include entries for instances not referenced in Rows 8, 9 and 10. |
| DICOM PS3.16 2026c - Content Mapping Resource |
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