DICOM PS3.3 2021e - Information Object Definitions

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.

Basic Directory IOD Information Model

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, 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

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.

DICOM PS3.3 2021e - Information Object Definitions