DICOM Standard Browser

by Innolitics

CR ImageCIOD
CT ImageCIOD
PatientMModule - Patient
Clinical Trial SubjectUModule - Patient
General StudyMModule - Study
Patient StudyUModule - Study
Clinical Trial StudyUModule - Study
General SeriesMModule - Series
Clinical Trial SeriesUModule - Series
Frame of ReferenceMModule - Frame of Reference
General EquipmentMModule - Equipment
General ImageMModule - Image
General ReferenceUModule - Image
Image PlaneMModule - Image
Image PixelMModule - Image
Contrast/BolusCModule - Image
DeviceUModule - Image
SpecimenUModule - Image
CT ImageMModule - Image
(0008,0008) Image Type1Code String
(0028,0002) Samples per Pixel1Unsigned Short
(0028,0004) Photometric Interpretation1Code String
(0028,0100) Bits Allocated1Unsigned Short
(0028,0101) Bits Stored1Unsigned Short
(0028,0102) High Bit1Unsigned Short
(0028,1052) Rescale Intercept1Decimal String
(0028,1053) Rescale Slope1Decimal String
(0028,1054) Rescale Type1CLong String
(0018,0060) KVP2Decimal String
(0020,0012) Acquisition Number2Integer String
(0018,0022) Scan Options3Code String
(0018,0090) Data Collection Diameter3Decimal String
(0018,9313) Data Collection Center (Patient)3Double
(0018,1100) Reconstruction Diameter3Decimal String
(0018,9318) Reconstruction Target Center (Patient)3Double
(0018,1110) Distance Source to Detector3Decimal String
(0018,1111) Distance Source to Patient3Decimal String
(0018,1120) Gantry/Detector Tilt3Decimal String
(0018,1130) Table Height3Decimal String
(0018,1140) Rotation Direction3Code String
(0018,1150) Exposure Time3Integer String
(0018,1151) X-Ray Tube Current3Integer String
(0018,1152) Exposure3Integer String
(0018,1153) Exposure in µAs3Integer String
(0018,1160) Filter Type3Short String
(0018,1170) Generator Power3Integer String
(0018,1190) Focal Spot(s)3Decimal String
(0018,1210) Convolution Kernel3Short String
(0018,9305) Revolution Time3Double
(0018,9306) Single Collimation Width3Double
(0018,9307) Total Collimation Width3Double
(0018,9309) Table Speed3Double
(0018,9310) Table Feed per Rotation3Double
(0018,9311) Spiral Pitch Factor3Double
(0018,9323) Exposure Modulation Type3Code String
(0018,9324) Estimated Dose Saving3Double
(0018,9345) CTDIvol3Double
(0018,9346) CTDI Phantom Type Code Sequence3Sequence
(0018,1271) Water Equivalent Diameter3Double
(0018,1272) Water Equivalent Diameter Calculation Method Code Sequence1CSequence
(0018,115E) Image and Fluoroscopy Area Dose Product3Decimal String
(0008,2218) Anatomic Region Sequence3Sequence
(0008,2228) Primary Anatomic Structure Sequence3Sequence
(0054,0220) View Code Sequence3Sequence
(0054,0500) Slice Progression Direction3Code String
(0018,9351) Calcium Scoring Mass Factor Patient3Single
(0018,9352) Calcium Scoring Mass Factor Device3Single
(0018,9353) Energy Weighting Factor1CSingle
(0018,9360) CT Additional X-Ray Source Sequence3Sequence
(300A,012C) Isocenter Position3Decimal String
(300A,0122) Patient Support Angle3Decimal String
(300A,0140) Table Top Pitch Angle3Single
(300A,0144) Table Top Roll Angle3Single
(300A,0129) Table Top Longitudinal Position3Decimal String
(300A,012A) Table Top Lateral Position3Decimal String
Overlay PlaneUModule - Image
VOI LUTUModule - Image
SOP CommonMModule - Image
Common Instance ReferenceUModule - Image
MR ImageCIOD
NM ImageCIOD
US ImageCIOD
US Multi-frame ImageCIOD
SC ImageCIOD
Multi-frame Single Bit SC ImageCIOD
Multi-frame Grayscale Byte SC ImageCIOD
Multi-frame Grayscale Word SC ImageCIOD
Multi-frame True Color SC ImageCIOD
X-Ray Angiographic ImageCIOD
XRF ImageCIOD
RT ImageCIOD
RT DoseCIOD
RT Structure SetCIOD
RT PlanCIOD
PET 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
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
Basic Voice AudioCIOD
12-Lead ECGCIOD
General ECGCIOD
Ambulatory ECGCIOD
HemodynamicCIOD
Basic Cardiac EPCIOD
Arterial Pulse WaveformCIOD
Respiratory WaveformCIOD
General Audio WaveformCIOD
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 Structured ReportCIOD
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 X-Ray Angiographic ImageCIOD
Enhanced X-Ray RF 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 OCT 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
Table CT Performed Procedure ProtocolCIOD
CT Defined Procedure ProtocolCIOD
Protocol ApprovalCIOD
Ophthalmic Optical Coherence Tomography En Face ImageCIOD
Ophthalmic Optical Coherence Tomography B-scan Volume AnalysisCIOD

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

Data synced with official DICOM standard on 25 September 2017. The DICOM Standard is under continuous maintenance, and the current official version is available at http://dicom.nema.org/. DICOM Parts 3 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.

Image and Fluoroscopy Area Dose Product Attribute

Tag(0018,115E)
TypeOptional (3)
KeywordImageAndFluoroscopyAreaDoseProduct
Value Multiplicity1
Value RepresentationDecimal String (DS)

X-Ray dose, measured in dGy*cm*cm, to which the patient was exposed for the acquisition of the entire Irradiation Event from which this image was reconstructed.

Note

  1. All of the images reconstructed from the same Irradiation Event will have the same value for this Attribute, which is the total for the Irradiation Event, which is repeated in each image, regardless of whether or not the Irradiation Event UID (0008,3010) is present with a value in the Multi-frame Dimension Module. I.e., the values for each image should not be summed. The sum of the area dose products of all encoded Irradiation Events may not result in the total area dose product to which the patient was exposed.

  2. This may be an estimated value based on assumptions about the patient’s body size and habitus.

  3. This value is required by [IEC 60601-2-63].

Multi-frame Dimension Module

C.7.6.17 Multi-frame Dimension Module

The Multi-frame Dimension Module contains a sequence with items pointing to attributes defining a set of dimensions that are usually known prior to the acquisition commencing. It is up to the generating applications to decide what attributes are important to describe the multi-frame dimensions.

The application that generates the Concatenation or SOP Instances may use the order of Dimension Index Pointers (0020,9165) in the Dimension Index Sequence (0020,9222) to guide the receiving application in determining the order of the presentation of image frames. The first index has the highest ranking, the next index has a lower ranking, etc. Frames with higher values for the dimension with the highest ranking would only be presented after all frames that have values for Dimension Index Pointers (0020,9165) of the lower rankings have been presented.

If the set of Dimension Index Pointers does not provide an attribute set whose values are unique for each frame then the order for the frames with the same value set will be incompletely specified. The receiving application could use the logical frame number to resolve this ambiguity. If the attribute set contains more dimensions than are needed to specify a unique ordering, the lower order ranking attribute(s) will have no effect on the ordering.

Note

For example if there were the following indices in the following order:

  • Stack ID (1-3)

  • In-stack Position Number (1-2 for Stack ID 1, 1-4 for Stack ID 2, 1-3 for Stack ID 3)

  • Effective Echo Time (1-2), i.e., every slice has been scanned with 2 different effective echo's

Then the frames could be presented in the following order:

(Stack ID, In-stack Position, Effective Echo Time)

(1,1,1), (1,1,2), (1,2,1), (1,2,2),

(2,1,1), (2,1,2), (2,2,1), (2,2,2), (2,3,1), (2,3,2), (2,4,1), (2,4,2)

(3,1,1), (3,1,2), (3,2,1), (3,2,2), (3,3,1), (3,3,2)

The actual order of the frames in the object is up to the generating application.

If the effective echo time was not included in the Dimension Index Pointers in the above example then the order of sorting for the frames with the same indices will be undefined - in this case there would be 2 frames with the index set (Stack ID, In-stack Position) = (1,1) and the order of these frames is not specified.

If there were another attribute appended to the Dimension Index Pointers, for example TR, then the TR index would not be used in determining the order of the frames. So the Index Frame Pointers would contain (Stack ID, In-stack Position, Effective Echo Time, TR) but the TR index would be irrelevant for frame ordering purposes.

Table C.7.6.17-1 specifies the attributes of the Multi-frame Dimension Module.

Table C.7.6.17-1. Multi-frame Dimension Module Attributes

Attribute Name

Tag

Type

Attribute Description

Dimension Organization Sequence

(0020,9221)

1

Sequence that lists the Dimension Organization UIDs referenced by the containing SOP Instance. See Section C.7.6.17.2 for further explanation.

One or more Items shall be included in this Sequence.

>Dimension Organization UID

(0020,9164)

1

Uniquely identifies a set of dimensions referenced within the containing SOP Instance. See Section C.7.6.17.2 for further explanation.

Dimension Organization Type

(0020,9311)

3

Dimension organization of the instance.

Defined Terms:

3D

Spatial Multi-frame image of equally spaced parallel planes (3D volume set)

3D_TEMPORAL

Temporal loop of equally spaced parallel-plane 3D volume sets.

Dimension Index Sequence

(0020,9222)

1

Identifies the sequence containing the indices used to specify the dimension of the multi-frame object.

One or more Items shall be included in this Sequence.

>Dimension Index Pointer

(0020,9165)

1

Contains the Data Element Tag that is used to identify the Attribute connected with the index. See Section C.7.6.17.1 for further explanation.

>Dimension Index Private Creator

(0020,9213)

1C

Identification of the creator of a group of private data elements.

Required if the Dimension Index Pointer (0020,9165) value is the Data Element Tag of a Private Attribute.

>Functional Group Pointer

(0020,9167)

1C

Contains the Data Element Tag of the Functional Group Sequence that contains the Attribute that is referenced by the Dimension Index Pointer (0020,9165).

See Section C.7.6.17.1 for further explanation.

Required if the value of Dimension Index Pointer (0020,9165) is the Data Element Tag of an Attribute that is contained within a Functional Group Sequence.

>Functional Group Private Creator

(0020,9238)

1C

Identification of the creator of a group of private data elements.

Required if the Functional Group Pointer 0020,9167) value is the Data Element Tag of a Private Attribute.

>Dimension Organization UID

(0020,9164)

1

Uniquely identifies a set of dimensions referenced within the containing SOP Instance. In particular the dimension described by this sequence item is associated with this Dimension Organization UID. See Section C.7.6.17.2 for further explanation.

>Dimension Description Label

(0020,9421)

3

Free text description that explains the meaning of the dimension.


C.7.6.17.1 Dimension Indices

With the Dimension Index Sequence (0020,9222), Data Element Tags are specified that identify the indices used for a particular SOP Instance.

The actual index values for each frame in a multi-frame header are stored in a single Dimension Index Values Attribute (0020,9157) defined in the Frame Content Functional Group. For each SOP Instance this Attribute has a Value Multiplicity equal to the number of Items in the Sequence. The ordering of the Items in the Sequence defines the ordering in the Dimension Index Values Attribute: Item 1 of the Sequence relates to Value 1, Item 2 to Value 2, etc.

The Dimension Index Pointer (0020,9165) references a single Attribute that describes the actual values that define the dimension. Each Attribute referenced in the Dimension Index Sequence (0020,9222) will have an index stored in the Dimension Index Values (0020,9157) for each frame. Each index value is an ordinal number starting from 1 and monotonically increasing by 1 within the scope of a Dimension Organization UID (0020,9164). These values are independent of the actual values of the attribute referenced by the Dimension Index Pointer (0020,9165), i.e., the index values are logical indices, rather than actual indices. Frames assigned the same index shall contain nominally the same value for the referenced Attribute. If the referenced Attribute is not present for some frames, or is present but has no value, then a single index shall be assigned to indicate the lack of the value (i.e., all such frames shall have the same index value, which is different from other index values). It is at the discretion of the SOP Instance creator whether the Attribute values are equivalent, and therefore appropriate for assignment to the same index value.

The Dimension Index Pointer (0020,9165) shall contain the Data Element Tag (gggg,eeee) of the Attribute being indexed.

The Dimension Index Pointer (0020,9165) shall not contain the Data Element Tag for Frame Content Sequence (0020,9111) or Dimension Index Values (0020,9157).

Note

  1. Dimension Index Pointer (0020,9165) may point to a Sequence containing a Functional Group. In that case all the Attributes of the Sequence are associated with the index value.

  2. The Dimension Index Pointer (0020,9165) may point to a Data Element Tag (gggg,eeee) that is not present for all frames of an object, or does not have a value for all frames of an object. For such frames, index values are still assigned, as described above.

  3. The indices used in the Dimension Index Values (0020,9157) may or may not be identical to the value of indexed attribute referenced by Dimension Index Pointer (0020,9165). For example, if the referenced Attribute is itself encoded in an index-like fashion (being an ordinal number starting from 1), such as In-Stack Position Number (0020,9057), then index value 1 would typically correspond to In-Stack Position Number (0020,9057) value 1. On the other hand, if the referenced attribute encodes some physical measure, such as a time or distance, or a categorical value, such as a string describing the phase of contrast, or a more complex description such as an entire functional group, then the index value is independent of the encoded value.

  4. The scope of the values of Dimension Index Pointer (0020,9165) is defined to be within a single Dimension Organization UID (0020,9164). If the same Dimension Organization UID (0020,9164) is present in multiple Instances (whether part of a Concatenation or not), at least one of those Instances (though not necessarily every Instance) will contain a value of 1 for the Dimension Index Values (0020,9157).

The Functional Group Pointer (0020,9167) value is the Data Element Tag (gggg,eeee) of the Functional Group Sequence that contains the Attribute being indexed. If the Dimension Index Pointer 0020,9165) contains a Data Element Tag that identifies a Functional Group Sequence then the Functional Group Pointer (0020,9167) shall not be present.

If the Dimension Index Pointer (0020,9165) attribute contains a Private Data Element, then the Dimension Index Private Creator (0020,9213) shall contain the Private Creator of the block of Private Data Elements.

If the Functional Group Pointer (0020,9167) attribute contains a Private Data Element, then the Functional Group Private Creator (0020,9238) shall contain the Private Creator of the block of Private Data Elements.

Note

An example of the usage of the Dimension Index Sequence (0020,9222) and Dimension Index Values (0020,9157) attributes:

Dimension Index Sequence (0020,9222) specifies two indices:

  • Cardiac Trigger Delay Time (0020,9153)

  • Image Position (Patient) (0020,0032)

The Dimension Index Sequence (0020,9222) is filled with the following contents:

Item

Attribute

Value

1

Dimension Index Pointer

(0020,9153)

Functional Group Pointer

(0018,9118)

2

Dimension Index Pointer

(0020,0032)

Functional Group Pointer

(0020,9113)

The Dimension Index Values (0020,9157) (in the Frame Content Functional Group) for each frame consists of two values:

Index of Cardiac Trigger Delay Time \ Index of Image Position

The SOP Instance creator is responsible for maintaining consistency between the actual value of the attribute listed as the Dimension Index Pointer (0020,9165) and the corresponding value in the Dimension Index Values (0020,9157) attribute.

See Figure C.7.6.17-1 for an illustration of this example.

Figure C.7.6.17-1. Example of Dimension Index Sequence and Dimension Index Values Attributes


C.7.6.17.2 Dimension Organization UID

The Dimension Organization UID (0020,9164) value identifies a set of dimensions to which an Item of the Dimension Index Sequence (0020,9222) belongs.

When different SOP Instances share the same Dimension Organization UID (0020,9164) for a particular Item of the Dimension Index Sequence (0020,9222), equivalent indices from the corresponding Dimension Index Values (0020,9157) shall have the same meaning across the SOP Instances.

This mechanism allows an image creator to explicitly specify that indices are intended to convey identical information across SOP Instances.

Dimension Organization Sequence (0020,9221) contains a summary of all the Dimension Organization UID (0020,9164) values used in a SOP Instance.

Note

Figure C.7.6.17-2 illustrates how this is used for a SOP Instance created by a multi-planar reformat application from a SOP Instance containing three Items in the Dimension Index Sequence. The meaning of the indices for Temporal Position Index (0020,9128), and MR Echo Sequence (0018,9114) were preserved in the derived SOP Instance, so it shares the Dimension Organization UID for these attributes with the original. Since the reformat was performed with a different orientation, the meaning of the In-Stack Position Number (0020,9057) was not preserved. Therefore a new Dimension Organization UID (0020,9164) was created.

Figure C.7.6.17-2. Example of Use of Dimension Organization Module


[IEC 60601-2-63]

[IEC 60601-2-63] IEC. 2012. Medical Electrical Equipment - Part 2-63: Particular requirements for the basic safety and essential performance of dental extra-oral X-ray equipment.