DICOM Attribute

Delivered Nominal Range Modulation Fractions (300A,0509)

Keyword
DeliveredNominalRangeModulationFractions
VR
FL
VM
2

Definition

Delivered Fractions of the Delivered Reference Dose Definition (300A,0511) defining the proximal and distal limits at which the range-modulated region is defined. Contains two Values. The first Value defines the modulation fraction value at the proximal limit and the second Value defines the modulation fraction value at the distal limit. A Value of 1.0 refers to the 100% reference dose level as defined in Delivered Reference Dose Definition (300A,0511). Required if Delivered Nominal Range Modulated Region Depths (300A,0510) is present. See .

From NEMA PS3.3 §C.8.8.26.

Attribute Metadata

Tag
(300A,0509)
Keyword
DeliveredNominalRangeModulationFractions
Name
Delivered Nominal Range Modulation Fractions
Value Representation (VR)
FL
Value Multiplicity (VM)
2
Status
Active
Source
NEMA PS3.6 (table_6-1)

This attribute is part of the current DICOM Standard. Its value representation is FL with multiplicity 2.

Used in 1 Module

This attribute uses the FL Value Representation. Multiplicity 2 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 DeliveredNominalRangeModulationFractions or the broader (300A,0509) context: