Tag | (0008,0309) |
---|---|
Type | Required (1) |
Keyword | PrivateDataElementValueMultiplicity |
Value Multiplicity | 1-3 |
Value Representation | Unsigned Long (UL) |
Value Multiplicity (VM) of the Data Element.
See Section C.12.1.1.7.1.
For Data Elements with a fixed multiplicity, this Attribute shall contain a single integer value, e.g., 3.
For Data Elements with a variable multiplicity, this Attribute contains either two or three values. The first value is the minimum multiplicity, the second value is the maximum multiplicity. If the maximum multiplicity is open-ended, 0 is used. The third value, if present, is the "stride", i.e., the increment between valid multiplicity values. A stride is used when values are added in sets, such as an x/y/z set of coordinate values that is recorded in triplets.If the stride is 1, the third value may be omitted. The stride is not permitted to be 0.
Examples:
VM of 1-3 is expressed as 1,3 or 1,3,1 meaning the multiplicity is permitted to be 1, 2 or 3
VM of 1-n is expressed as 1,0 or 1,0,1
VM of 0-n is expressed as 0,0 or 0,0,1
VM of 3-3n is expressed as 3,0,3
For a Private Data Element Value Representation (0008,030A) of SQ, the multiplicity shall be 1 and the allowed number of Items in a Sequence is recorded in Private Data Element Number of Items(0008,030B).