Modified Attributes Sequence Attribute
| Tag | (0400,0550) |
|---|---|
| Type | Required (1) |
| Keyword | ModifiedAttributesSequence |
| Value Multiplicity | 1 |
| Value Representation | Sequence (SQ) |
Sequence that contains all the Attributes, with their previous values, that were modified or removed from the top level Data Set.
See Section C.12.1.1.9.1.
Only a single Item shall be included in this Sequence.
Section C.12.1.1.9.1
C.12.1.1.9.1 Modified Attributes Sequence
Attributes that were replaced, added or removed shall be placed in the Modified Attributes Sequence (0400,0550) with their prior values. If an Attribute within a Sequence was replaced, added or removed, the entire prior value of the Sequence shall be placed in the Modified Attributes Sequence (0400,0550); this applies recursively up to the enclosing Sequence Attribute in the top level Data Set.
Attributes that were empty or absent and for which values have been added may be present in the Modified Attributes Sequence (0400,0550) with a zero length value.
If an Attribute was replaced, added or removed because its value was nonconforming to its Value Representation or Value Multiplicity, it shall be included in the Modified Attributes Sequence (0400,0550) with a zero length value.
Any Private Data Elements present in the Item shall be accompanied by their respective Private Data Element Creator Attribute.