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
PatientMModule - Patient
Clinical Trial SubjectUModule - Patient
General StudyMModule - Study
Patient StudyUModule - Study
Clinical Trial StudyUModule - Study
Encapsulated Document SeriesMModule - Series
Clinical Trial SeriesUModule - Series
General EquipmentMModule - Equipment
SC EquipmentMModule - Equipment
Encapsulated DocumentMModule - Encapsulated Document
(0008,0023) Content Date2Date
(0008,002A) Acquisition DateTime2Date Time
(0008,0033) Content Time2Time
(0008,1140) Referenced Image Sequence3Sequence
(0008,114A) Referenced Instance Sequence3Sequence
(0020,0013) Instance Number1Integer String
(0020,0062) Image Laterality3Code String
(0028,0301) Burned In Annotation1Code String
(0028,0302) Recognizable Visual Features3Code String
(0040,A040) Value Type1CCode String
(0040,A043) Concept Name Code Sequence2Sequence
(0040,A050) Continuity Of Content1CCode String
(0040,A360) Predecessor Documents Sequence3Sequence
(0040,A493) Verification Flag3Code String
(0040,A504) Content Template Sequence1CSequence
(0040,A525) Identical Documents Sequence3Sequence
(0040,A730) Content Sequence3Sequence
(0040,E001) HL7 Instance Identifier1CShort Text
(0040,E008) Document Class Code Sequence3Sequence
(0042,0010) Document Title2Short Text
(0042,0011) Encapsulated Document1Other Byte String
(0042,0012) MIME Type of Encapsulated Document1Long String
(0042,0013) Source Instance Sequence1CSequence
(0008,1150) Referenced SOP Class UID1Unique Identifier
(0008,1155) Referenced SOP Instance UID1Unique Identifier
(0040,A170) Purpose of Reference Code Sequence3Sequence
(0042,0014) List of MIME Types1CLong String
(0042,0015) Encapsulated Document Length3Unsigned Long
SOP CommonMModule - Encapsulated Document
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

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

Data synced with official DICOM standard on 18 April 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.

Source Instance Sequence Attribute

Tag(0042,0013)
TypeConditionally Required (1C)
KeywordSourceInstanceSequence
Value Multiplicity1
Value RepresentationSequence (SQ)

A Sequence that identifies the set of Instances that were used to derive the encapsulated document.

One or more Items shall be included in this Sequence.

Required if derived from one or more DICOM Instances. May be present otherwise.

Note

Unlike other uses of Source Instance Sequence (0042,0013), such as in the General Reference Module, references to images are permitted in this Module. This Module does not include the Source Image Sequence (0008,2112). The Defined Context Group for Purpose of Reference Code Sequence (0040,A170) includes an appropriate concept.

General Reference Module

C.12.4 General Reference Module

Table C.12-10 specifies the Attributes of the General Reference Module, which reference source and other related Instances and describe the manner of derivation.

Table C.12-10. General Reference Module Attributes

Attribute Name

Tag

Type

Attribute Description

Referenced Image Sequence

(0008,1140)

3

Other images significantly related to this image (e.g., post-localizer CT image, Mammographic biopsy or partial view images, or slide images containing control material).

One or more Items are permitted in this Sequence.

>Include Table 10-3 “Image SOP Instance Reference Macro Attributes”

>Purpose of Reference Code Sequence

(0040,A170)

3

Describes the purpose for which the reference is made.

Only a single Item is permitted in this Sequence.

>>Include Table 8.8-1 “Code Sequence Macro Attributes”

DCID 7201 “Referenced Image Purpose of Reference”.

Referenced Instance Sequence

(0008,114A)

3

Non-image composite SOP Instances that are significantly related to this Image, including waveforms that may or may not be temporally synchronized with this image.

One or more Items are permitted in this Sequence.

>Include Table 10-11 “SOP Instance Reference Macro Attributes”

>Purpose of Reference Code Sequence

(0040,A170)

1

Code describing the purpose of the reference to the Instance(s).

Only a single Item shall be included in this Sequence.

>>Include Table 8.8-1 “Code Sequence Macro Attributes”

DCID 7004 “Waveform Purpose of Reference” for referenced waveforms.

DCID 7022 “Radiotherapy Purpose of Reference” for referenced RT Instances.

Derivation Description

(0008,2111)

3

A text description of how this image was derived. See Section C.12.4.1.1 for further explanation.

Derivation Code Sequence

(0008,9215)

3

A coded description of how this image was derived. See Section C.12.4.1.1 for further explanation.

One or more Items are permitted in this Sequence. More than one Item indicates that successive derivation steps have been applied.

>Include Table 8.8-1 “Code Sequence Macro Attributes”

DCID 7203 “Image Derivation”.

Source Image Sequence

(0008,2112)

3

The set of Image SOP Class/Instance pairs of the Images that were used to derive this Image.

One or more Items are permitted in this Sequence.

See Section C.12.4.1.2 for further explanation.

>Include Table 10-3 “Image SOP Instance Reference Macro Attributes”

>Purpose of Reference Code Sequence

(0040,A170)

3

Describes the purpose for which the reference is made, that is what role the source image or frame(s) played in the derivation of this image.

Only a single Item is permitted in this Sequence.

>>Include Table 8.8-1 “Code Sequence Macro Attributes”

DCID 7202 “Source Image Purpose of Reference”.

>Spatial Locations Preserved

(0028,135A)

3

The extent to which the spatial locations of all pixels are preserved during the processing of the source image that resulted in the current image

Enumerated Values:

YES

NO

REORIENTED_ONLY

A projection radiograph that has been flipped, and/or rotated by a multiple of 90 degrees

Note

  1. This applies not only to images with a known relationship to a 3D space, but also to projection images. For example, a projection radiograph such as a mammogram that is processed by a point image processing operation such as contrast enhancement, or a smoothing or edge enhancing convolution, would have a value of YES for this Attribute. A projection radiograph that had been magnified or warped geometrically would have a value of NO for this Attribute. A projection radiograph that has been flipped, and/or rotated by a multiple of 90 degrees, such that transformation of pixel locations is possible by comparison of the values of Patient Orientation (0020,0020) would have a value of REORIENTED_ONLY. This Attribute is typically of importance in relating images with Presentation Intent Type (0008,0068) values of FOR PROCESSING and FOR PRESENTATION.

  2. When the value of this Attribute is NO, it is not possible to locate on the current image any pixel coordinates that are referenced relative to the source image, such as for example, might be required for rendering CAD findings derived from a referenced FOR PROCESSING image on the current FOR PRESENTATION image.

>Patient Orientation

(0020,0020)

1C

The Patient Orientation values of the source image.

Required if the value of Spatial Locations Preserved (0028,135A) is REORIENTED_ONLY.

Source Instance Sequence

(0042,0013)

3

The set of non-image composite SOP Instances that were used to derive this Instance.

One or more Items are permitted in this Sequence.

See Section C.12.4.1.2 for further explanation.

>Include Table 10-11 “SOP Instance Reference Macro Attributes”

>Purpose of Reference Code Sequence

(0040,A170)

3

Describes the purpose for which the reference is made, that is what role the source Instance(s) played in the derivation of this Instance.

Only a single Item single Item is permitted in this Sequence.

>>Include Table 8.8-1 “Code Sequence Macro Attributes”

DCID 7013 “Non-Image Source Instance Purpose of Reference”.


C.12.4.1 General Reference Module Attribute Descriptions

C.12.4.1.1 Derivation Description

If an Image is identified to be a Derived Image (see Section C.7.6.1.1.2 “Image Type”), Derivation Description (0008,2111) and Derivation Code Sequence (0008,9215) describe the way in which the image was derived. They may be used whether or not the Source Image Sequence (0008,2112) is provided. They may also be used in cases when the Derived Image pixel data is not significantly changed from one of the source images and the SOP Instance UID of the Derived Image is the same as the one used for the source image.

Note

  1. Examples of Derived Images that would normally be expected to affect professional interpretation and would thus have a new UID include:

    1. images resulting from image processing of another image (e.g., unsharp masking),

    2. a multiplanar reformatted CT image,

    3. a DSA image derived by subtracting pixel values of one image from another.

    4. an image that has been decompressed after having been compressed with a lossy compression algorithm. To ensure that the user has the necessary information about the lossy compression, the approximate compression ratio may be included in Derivation Description (0008,2111).

    An example of a Derived Image that would normally not be expected to affect professional interpretation and thus would not require a new UID is an image that has been padded with additional rows and columns for more display purposes.

  2. An image may be lossy compressed, e.g., for long term archive purposes, and its SOP Instance UID changed. PS3.4 provides a mechanism by which a query for the original Image Instance may return a reference to the UID of the lossy compressed version of the image using the Alternate Representation Sequence (0008,3001). This allows an application processing a SOP Instance that references the original image UID, e.g., a Structured Report, to obtain a reference to an accessible version of the image even if the original SOP Instance is no longer available.

C.12.4.1.2 Source Image Sequence

If an Image is identified to be a Derived Image (see Section C.7.6.1.1.2 “Image Type”), Source Image Sequence (0008,2112) is an optional list of source images used to create the Derived image. Source Instance Sequence (0042,0013) is an optional list of non-image source Instances that were used to create this Instance. Source Image Sequence (0008,2112) and/or Source Instance Sequence (0042,0013) may be used whether or not there is a description of the way the Instance was derived in Derivation Description (0008,2111) or Derivation Code Sequence (0008,9215).

Images shall not be referenced by Source Instance Sequence (0042,0013).

Note

Multiple Items may be present within Source Image Sequence (0008,2112) and/or Source Instance Sequence (0042,0013), in which case either:

  1. those Instance were combined to make the derived Instance (e.g., multiple source images to make an MPR or MIP), or

  2. each of the Items represents a step in the successive derivation of an Instance (e.g., when an image has had successive lossy compression steps applied to it),

  3. some combination of the above.

The Purpose of Reference Code Sequence (0040,A170) and the Attributes within the referenced Instances themselves may be used to determine the history of the derivation, which is not otherwise explicitly specified.