Value Representation

OD Other Double

Category
binary-stream
Max Length
2^32-8 bytes
Fixed Length
No
Source
PS3.5 §6.2

Definition

A string of 64-bit IEEE 754:1985 floating point words. OD is a VR that requires byte swapping within each 64-bit word when changing byte ordering.

Attributes using OD

7 DICOM attributes declare this VR.

Working with OD 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.