DICOM Attribute

Extended Offset Table (7FE0,0001)

Keyword
ExtendedOffsetTable
VR
OV
VM
1

Definition

Byte offsets of the Item Tags of the Frames in the Sequence of Items in Encapsulated Pixel Data encoded in Pixel Data (7FE0,0010). See . May only be present when: Pixel Data (7FE0,0010) is present, and the Transfer Syntax uses Encapsulated Format for the Pixel Data (7FE0,0010), and the Transfer Syntax encodes Frames in separate Fragments, and the Basic Offset Table is not present (i.e., the first Item of Pixel Data (7FE0,0010) has zero length), and each Frame is entirely contained within one Fragment. Unlike a Basic Offset Table, an Extended Offset Table, if the Attribute is present, is not permitted to be empty. If this Instance is part of a Concatenation, only the offset and lengths of the Frames encoded in the Pixel Data (7FE0,0010) of this Instance are indexed in the Extended Offset Table (7FE0,0001) and Extended Offset Table Lengths (7FE0,0002) in this Instance, not those of the entire Concatenation. I.e., the Values of these two Attributes are specific to each Instance. See also . If the Data Set is re-encoded (such as in a different Transfer Syntax) any Extended Offset Table may need to be recomputed or removed.

From NEMA PS3.3 §C.7.6.3.

Attribute Metadata

Tag
(7FE0,0001)
Keyword
ExtendedOffsetTable
Name
Extended Offset Table
Value Representation (VR)
OV
Value Multiplicity (VM)
1
Status
Active
Source
NEMA PS3.6 (table_6-1)

This attribute is part of the current DICOM Standard. Its value representation is OV with multiplicity 1.

Used in 1 Module

This attribute uses the OV Value Representation. Multiplicity 1 governs how many values may be encoded.

Integration Notes

Real-world integration guidance for engineers implementing this attribute in Mirth Connect, FHIR gateways, HL7 v2 bridges, and cloud DICOM services. Authoritative source data where available; reference examples and operational notes where they add value.

FHIR Mapping

No direct FHIR ImagingStudy mapping published for this attribute. Some tags map indirectly via the Patient, Endpoint, or ImagingSelection resources — Phase 2b will expand coverage to those.

HL7 v2 Equivalent

No standard HL7 v2 equivalent published for this attribute. Imaging-only attributes (Image Pixel data, technical acquisition parameters, modality-specific values) typically have no HL7 v2 carrier.

Cloud DICOM Support

AWS HealthImaging, Azure DICOM, and GCP Healthcare DICOM coverage rolls out by attribute. The QIDO-RS matching keys + Patient/Study/Series core (~50 attributes) are documented; lower-traffic attributes will be added as Saga teams encounter them in production.

Real-World Sample Values

No representative sample value available — this attribute isn't present in the de-identified pydicom fixture set. Add a fixture covering this attribute to expand coverage.

Mirth Connect Example

JavaScript transformer snippets for the most-queried tags will be added as coverage expands.

Common Operational Errors

Operational error patterns for the most-queried tags will be added as coverage expands.

DICOM Integration Services

Saga IT builds production DICOM integrations across Mirth Connect, FHIR gateways, and cloud imaging platforms. If you're working with ExtendedOffsetTable or the broader (7FE0,0001) context: