| DICOM PS3.3 2024c - Information Object Definitions |
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For the purposes of this Standard the following definitions apply.
This Part of the Standard is based on the concepts developed in [ISO 7498-1] and [ISO 7498-2] and makes use of the following terms defined in them:
See [ISO 7498-1].
See [ISO 7498-1].
This Part of the Standard makes use of the following terms defined in [ISO/TR 8509]:
See [ISO/TR 8509].
This Part of the Standard makes use of the following terms defined in PS3.1:
This Part of the Standard makes use of the following terms defined in PS3.4:
This Part of the Standard makes use of the following terms defined in PS3.5:
This Part of the Standard makes use of the following terms defined in PS3.7:
This Part of the Standard makes use of the following terms defined in PS3.8:
A description of the conditions present during data acquisition.
A sequential component of the acquisition portion of a protocol, that contains the parameters necessary to perform a single acquisition. In the case of CT, this would correspond to tube voltage, tube current, rotation time, spatial location, etc. and an Acquisition Protocol Element also corresponds to an [NEMA XR-25] PROTOCOL ELEMENT. In the case of XA, this would correspond to technical factors and control algorithms for the image acquisition, e.g. kVp, mA, pulse width, image quality targets, rotation range, etc.
An affirmative statement or declaration by a specified entity about a specified or implied subject for a specified or implied purpose.
A unique identifier for an Attribute of an Information Object composed of an ordered pair of numbers (a Group Number followed by an Element number).
The Basic Directory Information Object Definition is an abstraction of the information to identify a File-set and facilitate access to the information stored in the files of a File-set based on key medical information.
A model that defines the relationship between the various types of Directory Records that may be used in constructing DICOM Directories.
A set of temporally related frames acquired at constant or variable frame rates. This term incorporates the general class of serialography.
Attribute that (usually) includes the string "Code Sequence" in the Attribute Name and has a VR of SQ (Sequence of Items). Its purpose is to encode concepts using code values and optional text meanings from coding schemes. Section 8.1 through Section 8.8 specify the Attributes of which the Sequence Items (Attribute Sets) of Code Sequence Attributes are constructed.
An Information Object Definition that represents parts of several entities in the DICOM Application Model. Such an IOD includes Attributes that are not inherent in the Real-World Object that the IOD represents but rather are inherent in related Real-World Objects.
An image in which the pixel data was constructed from pixel data of one or more other images (source images).
An Entity-Relationship diagram used to model the relationships between Real-World Objects that are within the area of interest of the DICOM Standard.
An Entity-Relationship diagram that is used to model the relationships between the Information Object Definitions representing classes of Real-World Objects defined by the DICOM Application Model.
A set of logically related Attributes that are likely to vary together. May be used in Multi-frame IODs to describe parameters that change on a per frame basis.
That portion of information defined by a Composite IOD that is related to one specific class of Real-World Object. There is a one-to-one correspondence between Information Entities and entities in the DICOM Application Model.
A data abstraction of a class of similar Real-World Objects that defines the nature and Attributes relevant to the class of Real-World Objects represented.
A listing of DICOM Studies, Series, and SOP Instances, and associated metadata, managed by a repository system.
A set of Attributes within an Information Entity or Normalized IOD that are logically related to each other.
An Information Object Definition that represents a single entity in the DICOM Application Model. Such an IOD includes Attributes that are only inherent in the Real-World Object that the IOD represents.
A sequential component of a protocol, consisting of all the parameters necessary to perform that component of the protocol.
A sequential component of the reconstruction portion of a protocol, such as generating CT thin images or multiplanar reformats, or generating XA 2D processed images and/or 3D X-Ray images.
A selected subset of samples within a dataset identified for a particular purpose.
The parameters that select the DICOM Studies that are included in an Inventory. Parameters are specified as matching rules for Attribute values.
A part of a whole, such as the classification of pixels in an image.
Specialization is the replacement of the Type, value range and/or description of an Attribute in a general Module of an IOD, by its Type, value range and/or description defined in a modality-specific Module of an IOD.
The same Attribute may be present in multiple Modules in the same IOD but not specified to be "Specialized".
A sequential component of the storage portion of protocol, such as sending a Series of images to a PACS or an archive or a processing workstation.
This Part of the standard makes use of the following terms defined in [ISO/IEC 2022]:
See [ISO/IEC 2022].
See [ISO/IEC 2022].
See [ISO/IEC 2022].
This Part of the Standard is based on the concepts developed in [IEC 61217] and makes use of the following terms defined in it:
See [IEC 61217].
See [IEC 61217].
See [IEC 61217].
See [IEC 61217].
See [IEC 61217].
See [IEC 61217].
See [IEC 61217].
See [IEC 61217].
This Part of the Standard makes use of the following terms defined in PS3.14:
This Part of the Standard makes use of the following terms defined in PS3.16:
This Part of the Standard makes use of the following terms defined in [ISO 7498-2]:
The definition is "Data appended to, or a cryptographic transformation of, a data unit that allows a recipient of the data unit to prove the source and integrity of that unit and protect against forgery e.g., by the recipient."
The definition is "the property that information is not made available or disclosed to unauthorized individuals, entities or processes."
The definition is "the corroboration that the source of data received is as claimed."
The definition is "the property that data has not been altered or destroyed in an unauthorized manner."
The definition is "the generation, storage, distribution, deletion, archiving and application of keys in accordance with a security policy."
This Part of the Standard makes use of the following terms defined in [ECMA 235]:
This Part of the Standard makes use of the following terms defined in PS3.15:
The RCS is the spatial coordinate system in a DICOM Frame of Reference. It is the chosen origin, orientation and spatial scale of an Image IE in a Cartesian space. The RCS is a right-handed Cartesian coordinate system i.e., the vector cross product of a unit vector along the positive x-axis and a unit vector along the positive y-axis is equal to a unit vector along the positive z-axis. The unit length is one millimeter. Typically, the Image IE contains a spatial mapping that specifies the relationship of the image samples to the Cartesian spatial domains of the RCS.
The Ophthalmic Coordinate System is used as the Frame of Reference that establishes the spatial relationship relative to the corneal vertex. The corneal vertex is the point located at the intersection of the patient's line of sight (visual axis) and the corneal surface. See Section C.8.30.3.1.4 for further explanation.
A fiducial is some unique feature or landmark suitable as a spatial reference or correlation between similar objects. The fiducial may contribute to the definition of the origin and orientation of a chosen coordinate system. Identifying fiducials in different collections of data is a common means to establish the spatial relationship between similar objects.
A Fiducial Point defines a specific location of a Fiducial. A Fiducial Point is relative to an image or to an RCS.
Also called Multi-Planar Reformatting. A data visualization created by sampling volume data, typically represented by a stack of image planes, that lies in the neighborhood of the intersection of the volume with a plane, curved plane, slab or curved slab.
An MPR where the samples are centered on a single plane intersected with the volume.
A Presentation State that defines a transformation from 3D spatial input data (volume) to 2D spatial output data, with or without affecting other dimensions such as temporal.
The Reference Coordinate System to which inputs to a Volumetric Presentation State are registered and to which Attribute Values of a Volumetric Presentation State are referenced (unless stated otherwise).
A presentation, with two spatial dimensions, of volume data.
This Part of the Standard makes use of the following terms, some of which are defined in PS3.14 or [IEC 62563-1]:
A part of a Display System. A Display Subsystem consists of one Display Device and zero or more other devices (such as controllers). A Display System has one or more Display Subsystems.
See [IEC 62563-1].
This Part of the Standard makes use of the following terms defined in PS3.14:
An alphanumeric identifier issued by the unique device identification system established by the FDA to label and identify devices through distribution and use. See http://www.fda.gov/udi.
This Part of the Standard makes use of the following terms defined in PS3.10:
| DICOM PS3.3 2024c - Information Object Definitions |
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