Value Representation

SQ Sequence of Items

Category
sequence
Max Length
not applicable
Fixed Length
No
Source
PS3.5 §6.2

Definition

Value is a Sequence of zero or more Items, as defined in section 7.5. A Sequence may be used for nesting one or more Data Sets within another Data Set.

Attributes using SQ

1,335 DICOM attributes declare this VR. Showing the first 24.

Working with SQ 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.