Value Representation
OL Other Long
- Category
- binary-stream
- Max Length
- 2^32-4 bytes
- Fixed Length
- No
- Source
- PS3.5 §6.2
Definition
A string of 32-bit words where the encoding of the contents is specified by the negotiated Transfer Syntax. OL is a VR that requires byte swapping within each 32-bit word when changing byte ordering.
Attributes using OL
7 DICOM attributes declare this VR.
-
(0066,0040)Long Primitive Point Index ListLongPrimitivePointIndexList -
(0066,0041)Long Triangle Point Index ListLongTrianglePointIndexList -
(0066,0042)Long Edge Point Index ListLongEdgePointIndexList -
(0066,0043)Long Vertex Point Index ListLongVertexPointIndexList -
(0066,0129)Track Point Index ListTrackPointIndexList -
(006A,0011)Annotation Index ListAnnotationIndexList -
(0072,0075)Selector OL ValueSelectorOLValue
Working with OL in integration code
VR-aware transformations are where most DICOM integration bugs hide — truncating a PN's 5-component structure, misaligning OB padding, or dropping leading zeros on IS. Saga IT builds production DICOM pipelines that respect VR semantics across Mirth Connect transformers, DIMSE gateways, and cloud DICOM services.