Computed Radiography ImageCIOD
CT ImageCIOD
MR ImageCIOD
Nuclear Medicine ImageCIOD
Ultrasound ImageCIOD
Ultrasound Multi-frame ImageCIOD
Secondary Capture ImageCIOD
Multi-frame Single Bit Secondary Capture ImageCIOD
Multi-frame Grayscale Byte Secondary Capture ImageCIOD
Multi-frame Grayscale Word Secondary Capture ImageCIOD
Multi-frame True Color Secondary Capture ImageCIOD
X-Ray Angiographic ImageCIOD
X-Ray Radiofluoroscopic ImageCIOD
RT ImageCIOD
RT DoseCIOD
RT Structure SetCIOD
RT PlanCIOD
Positron Emission Tomography ImageCIOD
Digital X-Ray ImageCIOD
Digital Mammography X-Ray ImageCIOD
Digital Intra-Oral X-Ray ImageCIOD
RT Beams Treatment RecordCIOD
RT Brachy Treatment RecordCIOD
RT Treatment Summary RecordCIOD
VL Endoscopic ImageCIOD
VL Microscopic ImageCIOD
VL Slide-Coordinates Microscopic ImageCIOD
VL Photographic ImageCIOD
Video Endoscopic ImageCIOD
Video Microscopic ImageCIOD
Video Photographic ImageCIOD
VL Whole Slide Microscopy ImageCIOD
Real-Time Video Endoscopic ImageCIOD
Real-Time Video Photographic ImageCIOD
Dermoscopic Photography ImageCIOD
Grayscale Softcopy Presentation StateCIOD
Color Softcopy Presentation StateCIOD
Pseudo-Color Softcopy Presentation StateCIOD
Blending Softcopy Presentation StateCIOD
Basic Structured DisplayCIOD
XA/XRF Grayscale Softcopy Presentation StateCIOD
Advanced Blending Presentation StateCIOD
Variable Modality LUT Softcopy Presentation StateCIOD
Basic Voice Audio WaveformCIOD
12-Lead ECGCIOD
General ECGCIOD
Ambulatory ECGCIOD
Hemodynamic WaveformCIOD
Basic Cardiac Electrophysiology WaveformCIOD
Arterial Pulse WaveformCIOD
Respiratory WaveformCIOD
General Audio WaveformCIOD
Real-Time Audio WaveformCIOD
Routine Scalp ElectroencephalogramCIOD
ElectromyogramCIOD
ElectrooculogramCIOD
Sleep ElectroencephalogramCIOD
Multi-channel Respiratory WaveformCIOD
Body Position WaveformCIOD
General 32-bit ECGCIOD
Basic Text SRCIOD
Enhanced SRCIOD
Comprehensive SRCIOD
Key Object Selection DocumentCIOD
Mammography CAD SRCIOD
Chest CAD SRCIOD
Procedure LogCIOD
X-Ray Radiation Dose SRCIOD
Spectacle Prescription ReportCIOD
Colon CAD SRCIOD
Macular Grid Thickness and Volume ReportCIOD
Implantation Plan SR DocumentCIOD
Comprehensive 3D SRCIOD
Radiopharmaceutical Radiation Dose SRCIOD
Extensible SRCIOD
Acquisition Context SRCIOD
Simplified Adult Echo SRCIOD
Patient Radiation Dose SRCIOD
Planned Imaging Agent Administration SRCIOD
Performed Imaging Agent Administration SRCIOD
Rendition Selection DocumentCIOD
Enhanced X-Ray Radiation Dose SRCIOD
Enhanced MR ImageCIOD
MR SpectroscopyCIOD
Enhanced MR Color ImageCIOD
Raw DataCIOD
Enhanced CT ImageCIOD
Spatial RegistrationCIOD
Deformable Spatial RegistrationCIOD
Spatial FiducialsCIOD
Ophthalmic Photography 8 Bit ImageCIOD
Ophthalmic Photography 16 Bit ImageCIOD
Stereometric RelationshipCIOD
Hanging ProtocolCIOD
Encapsulated PDFCIOD
Encapsulated CDACIOD
Real World Value MappingCIOD
Enhanced XA ImageCIOD
Enhanced XRF ImageCIOD
RT Ion PlanCIOD
RT Ion Beams Treatment RecordCIOD
SegmentationCIOD
Ophthalmic Tomography ImageCIOD
X-Ray 3D Angiographic ImageCIOD
X-Ray 3D Craniofacial ImageCIOD
Breast Tomosynthesis ImageCIOD
Enhanced PET ImageCIOD
Surface SegmentationCIOD
Color PaletteCIOD
Enhanced US VolumeCIOD
Lensometry MeasurementsCIOD
Autorefraction MeasurementsCIOD
Keratometry MeasurementsCIOD
Subjective Refraction MeasurementsCIOD
Visual Acuity MeasurementsCIOD
Ophthalmic Axial MeasurementsCIOD
Intraocular Lens CalculationsCIOD
Generic Implant TemplateCIOD
Implant Assembly TemplateCIOD
Implant Template GroupCIOD
RT Beams Delivery InstructionCIOD
Ophthalmic Visual Field Static Perimetry MeasurementsCIOD
Intravascular Optical Coherence Tomography ImageCIOD
Ophthalmic Thickness MapCIOD
Surface Scan MeshCIOD
Surface Scan Point CloudCIOD
Legacy Converted Enhanced CT ImageCIOD
Legacy Converted Enhanced MR ImageCIOD
Legacy Converted Enhanced PET ImageCIOD
Corneal Topography MapCIOD
Breast Projection X-Ray ImageCIOD
Parametric MapCIOD
Wide Field Ophthalmic Photography Stereographic Projection ImageCIOD
Wide Field Ophthalmic Photography 3D Coordinates ImageCIOD
Tractography ResultsCIOD
RT Brachy Application Setup Delivery InstructionCIOD
Planar MPR Volumetric Presentation StateCIOD
Volume Rendering Volumetric Presentation StateCIOD
Content Assessment ResultsCIOD
CT Performed Procedure ProtocolCIOD
CT Defined Procedure ProtocolCIOD
Protocol ApprovalCIOD
XA Performed Procedure ProtocolCIOD
XA Defined Procedure ProtocolCIOD
Ophthalmic Optical Coherence Tomography En Face ImageCIOD
Ophthalmic Optical Coherence Tomography B-scan Volume AnalysisCIOD
Encapsulated STLCIOD
Encapsulated OBJCIOD
Encapsulated MTLCIOD
RT Physician IntentCIOD
RT Segment AnnotationCIOD
RT Radiation SetCIOD
C-Arm Photon-Electron RadiationCIOD
Tomotherapeutic RadiationCIOD
Robotic-Arm RadiationCIOD
RT Radiation Record SetCIOD
RT Radiation Salvage RecordCIOD
C-Arm Photon-Electron Radiation RecordCIOD
Tomotherapeutic Radiation RecordCIOD
Robotic-Arm Radiation RecordCIOD
RT Radiation Set Delivery InstructionCIOD
RT Treatment PreparationCIOD
Enhanced RT ImageCIOD
Enhanced Continuous RT ImageCIOD
RT Patient Position Acquisition InstructionCIOD
Microscopy Bulk Simple AnnotationsCIOD
InventoryCIOD
Photoacoustic ImageCIOD
Confocal Microscopy ImageCIOD
Confocal Microscopy Tiled Pyramidal ImageCIOD
Basic DirectoryCIOD
File-Set IdentificationMModule - Basic Directory
Directory InformationUModule - Basic Directory
(0004,1200) Offset of the First Directory Record of the Root Directory Entity1Unsigned Long
(0004,1202) Offset of the Last Directory Record of the Root Directory Entity1Unsigned Long
(0004,1212) File-set Consistency Flag1Unsigned Short
(0004,1220) Directory Record Sequence2Sequence
(0004,1400) Offset of the Next Directory Record1Unsigned Long
(0004,1410) Record In-use Flag1Unsigned Short
(0004,1420) Offset of Referenced Lower-Level Directory Entity1Unsigned Long
(0004,1430) Directory Record Type1Code String
(0004,1432) Private Record UID1CUnique Identifier
(0004,1500) Referenced File ID1CCode String
(0004,1510) Referenced SOP Class UID in File1CUnique Identifier
(0004,1511) Referenced SOP Instance UID in File1CUnique Identifier
(0004,1512) Referenced Transfer Syntax UID in File1CUnique Identifier
(0004,151A) Referenced Related General SOP Class UID in File1CUnique Identifier

Built with by Innolitics, a team of medical imaging software developers.

Data synced with official DICOM standard on 19 March 2024. The DICOM Standard is under continuous maintenance, and the current official version is available at http://www.dicomstandard.org/current/. DICOM Parts 3, 4, and 6, © NEMA. Please note that the most recent PDF version of the standard is the official reference, and should checked when making technical decisions.

Directory Record Type Attribute

Tag(0004,1430)
TypeRequired (1)
KeywordDirectoryRecordType
Value Multiplicity1
Value RepresentationCode String (CS)

Defines a specialized type of Directory Record by reference to its position in the Media Storage Directory Information Model (see Section F.4).

Enumerated Values:

PATIENT

STUDY

SERIES

IMAGE

RADIOTHERAPY

RT DOSE

RT STRUCTURE SET

RT PLAN

PLAN

RT TREAT RECORD

PRESENTATION

WAVEFORM

SR DOCUMENT

KEY OBJECT DOC

SPECTROSCOPY

RAW DATA

REGISTRATION

FIDUCIAL

HANGING PROTOCOL

ENCAP DOC

VALUE MAP

STEREOMETRIC

PALETTE

IMPLANT

IMPLANT GROUP

IMPLANT ASSY

MEASUREMENT

SURFACE

SURFACE SCAN

TRACT

ASSESSMENT

ANNOTATION

INVENTORY

PRIVATE

Privately defined record hierarchy position. Type shall be defined by Private Record UID (0004,1432).

Note

  1. Enumerated Values PRINT QUEUE, FILM SESSION, FILM BOX, and IMAGE BOX were previously defined. They are now retired. See PS3.3-1998 .

  2. Enumerated Values OVERLAY, MODALITY LUT, VOI LUT, CURVE, TOPIC, VISIT, RESULTS, INTERPRETATION, STUDY COMPONENT and STORED PRINT were previously defined. They are now retired. See PS3.3-2004.

  3. Enumerated Value MRDR was previously defined, to allow indirect reference to a File by multiple Directory Records. It is now retired. FSUs and FSRs are unlikely to be capable of supporting this mechanism. See PS3.3-2004.

  4. Enumerated Value HL7 STRUC DOC was previously defined. It is now retired. See PS3.3-2018b.

Section F.4

F.4 Basic Directory IOD Information Model

The Basic Directory IOD Information Model defines the relationship between the various types of Directory Records that may be used in constructing DICOM Directories. This model is based on the DICOM Application Model defined in this part of the DICOM Standard. Entities in this Model correspond to Directory Records (DR). These are shown as rectangular boxes. Each Directory Record in this model is part of a Directory Entity (not shown except for the Root Entity) that is referenced by a Directory Record of a higher-level Directory Entity (e.g., a Study Directory Record references a Directory Entity that includes Directory Records describing the content of the Study).

Each Directory Record has a number of mandatory and optional Keys that are not shown on this model. They are defined in Section F.5. Conventions used are those used by this part of the DICOM Standard. The model is depicted as an entity/relationship model in Figure F.4-1. These Directory Record relationships are fully specified in Table F.4-1.

Figure F.4-1. Basic Directory IOD Information Model


Table F.4-1. Relationship Between Directory Records

Directory Record Type

Section

Directory Record Types that may be included in the next lower-level directory Entity

(Root Directory Entity)

PATIENT, HANGING PROTOCOL, PALETTE, IMPLANT, IMPLANT ASSY, IMPLANT GROUP, INVENTORY, PRIVATE

PATIENT

F.5.1

STUDY, PRIVATE

STUDY

F.5.2

SERIES, PRIVATE

SERIES

F.5.3

IMAGE, RT DOSE, RT STRUCTURE SET, RT PLAN, RT TREAT RECORD, PRESENTATION, WAVEFORM, SR DOCUMENT, KEY OBJECT DOC, SPECTROSCOPY, RAW DATA, REGISTRATION, FIDUCIAL, ENCAP DOC, VALUE MAP, STEREOMETRIC, PLAN, MEASUREMENT, SURFACE, TRACT, ASSESSMENT, RADIOTHERAPY, ANNOTATION, PRIVATE

IMAGE

F.5.4

PRIVATE

RT DOSE

F.5.19

PRIVATE

RT STRUCTURE SET

F.5.20

PRIVATE

RT PLAN

F.5.21

PRIVATE

RT TREAT RECORD

F.5.22

PRIVATE

PRESENTATION

F.5.23

PRIVATE

WAVEFORM

F.5.24

PRIVATE

SR DOCUMENT

F.5.25

PRIVATE

KEY OBJECT DOC

F.5.26

PRIVATE

SPECTROSCOPY

F.5.27

PRIVATE

RAW DATA

F.5.28

PRIVATE

REGISTRATION

F.5.29

PRIVATE

FIDUCIAL

F.5.30

PRIVATE

HANGING PROTOCOL

F.5.31

PRIVATE

ENCAP DOC

F.5.32

PRIVATE

VALUE MAP

F.5.34

PRIVATE

STEREOMETRIC

F.5.35

PRIVATE

PALETTE

F.5.36

PRIVATE

IMPLANT

F.5.37

PRIVATE

IMPLANT ASSY

F.5.38

PRIVATE

IMPLANT GROUP

F.5.39

PRIVATE

PLAN

F.5.40

PRIVATE

MEASUREMENT

F.5.41

PRIVATE

SURFACE

F.5.42

PRIVATE

SURFACE SCAN

F.5.43

PRIVATE

TRACT

F.5.44

PRIVATE

ASSESSMENT

F.5.45

PRIVATE

RADIOTHERAPY

F.5.46

PRIVATE

ANNOTATION

F.5.47

PRIVATE

INVENTORY

F.5.48

PRIVATE

PRIVATE

F.6.1

PRIVATE, (any of the above as privately defined)


Note

  1. Directory Record Types PRINT QUEUE, FILM SESSION, FILM BOX, and IMAGE BOX were previously defined. They have been retired. See PS3.3-1998 .

  2. Directory Record Types OVERLAY, MODALITY LUT, VOI LUT, CURVE, TOPIC, VISIT, RESULTS, INTERPRETATION, STUDY COMPONENT, STORED PRINT and MRDR were previously defined. They have been retired. See PS3.3-2004.

  3. Directory Record Type HL7 STRUC DOC was previously defined. It has been retired. See PS3.3-2018b.