DICOM Attribute

Rescale Intercept (0028,1052)

Keyword
RescaleIntercept
VR
DS
VM
1

Definition

The value b in relationship between stored values (SV) and the output units. Output units = m*SV+b If Image Type (0008,0008) Value 1 is ORIGINAL and Value 3 is not LOCALIZER, and Multi-energy CT Acquisition (0018,9361) is either absent or NO, output units shall be Hounsfield Units (HU).

From NEMA PS3.3 §C.8.2.1.

Attribute Metadata

Tag
(0028,1052)
Keyword
RescaleIntercept
Name
Rescale Intercept
Value Representation (VR)
DS
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 DS with multiplicity 1.

Used in 6 Modules

This attribute uses the DS 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 Preserved
  • Azure DICOM Preserved
  • Google Cloud Healthcare Preserved

Rescale Intercept — preserved by all three. Required to convert stored pixel values to modality output units (HU for CT).

Per-vendor source URLs and verification date in src/content/dicom/cloud-support.json#_meta. Status taxonomy: required (mandated on Store), queryable (QIDO-RS matching key), preserved (stored as-is), promoted (AWS top-level metadata), unsupported (stripped/rejected).

Real-World Sample Values

  • -1024 CT_small.dcm

Extracted from pydicom test fixtures (MIT, de-identified).

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 RescaleIntercept or the broader (0028,1052) context: