|Patient||M||Module - Patient|
|Clinical Trial Subject||U||Module - Patient|
|General Study||M||Module - Study|
|Patient Study||U||Module - Study|
|Clinical Trial Study||U||Module - Study|
|General Series||M||Module - Series|
|Clinical Trial Series||U||Module - Series|
|Frame of Reference||M||Module - Frame of Reference|
|General Equipment||M||Module - Equipment|
|General Image||M||Module - Image|
|General Reference||U||Module - Image|
|Image Plane||M||Module - Image|
|Image Pixel||M||Module - Image|
|Contrast/Bolus||C||Module - Image|
|Device||U||Module - Image|
|Specimen||U||Module - Image|
|CT Image||M||Module - Image|
|Image Type||1||Code String|
|Samples per Pixel||1||Unsigned Short|
|Photometric Interpretation||1||Code String|
|Bits Allocated||1||Unsigned Short|
|Bits Stored||1||Unsigned Short|
|High Bit||1||Unsigned Short|
|Rescale Intercept||1||Decimal String|
|Rescale Slope||1||Decimal String|
|Rescale Type||1C||Long String|
|Acquisition Number||2||Integer String|
|Scan Options||3||Code String|
|Data Collection Diameter||3||Decimal String|
|Data Collection Center (Patient)||3||Double|
|Reconstruction Diameter||3||Decimal String|
|Reconstruction Target Center (Patient)||3||Double|
|Distance Source to Detector||3||Decimal String|
|Distance Source to Patient||3||Decimal String|
|Gantry/Detector Tilt||3||Decimal String|
|Table Height||3||Decimal String|
|Rotation Direction||3||Code String|
|Exposure Time||3||Integer String|
|X-Ray Tube Current||3||Integer String|
|Exposure in µAs||3||Integer String|
|Filter Type||3||Short String|
|Generator Power||3||Integer String|
|Focal Spot(s)||3||Decimal String|
|Convolution Kernel||3||Short String|
|Single Collimation Width||3||Double|
|Total Collimation Width||3||Double|
|Table Feed per Rotation||3||Double|
|Spiral Pitch Factor||3||Double|
|Exposure Modulation Type||3||Code String|
|Estimated Dose Saving||3||Double|
|CTDI Phantom Type Code Sequence||3||Sequence|
|Water Equivalent Diameter||3||Double|
|Water Equivalent Diameter Calculation Method Code Sequence||1C||Sequence|
|Image and Fluoroscopy Area Dose Product||3||Decimal String|
|Anatomic Region Sequence||3||Sequence|
|Primary Anatomic Structure Sequence||3||Sequence|
|View Code Sequence||3||Sequence|
|Slice Progression Direction||3||Code String|
|Calcium Scoring Mass Factor Patient||3||Single|
|Calcium Scoring Mass Factor Device||3||Single|
|Energy Weighting Factor||1C||Single|
|CT Additional X-Ray Source Sequence||3||Sequence|
|Isocenter Position||3||Decimal String|
|Patient Support Angle||3||Decimal String|
|Table Top Pitch Angle||3||Single|
|Table Top Roll Angle||3||Single|
|Table Top Longitudinal Position||3||Decimal String|
|Table Top Lateral Position||3||Decimal String|
|Overlay Plane||U||Module - Image|
|VOI LUT||U||Module - Image|
|SOP Common||M||Module - Image|
|Common Instance Reference||U||Module - Image|
|US Multi-frame Image||CIOD|
|Multi-frame Single Bit SC Image||CIOD|
|Multi-frame Grayscale Byte SC Image||CIOD|
|Multi-frame Grayscale Word SC Image||CIOD|
|Multi-frame True Color SC Image||CIOD|
|X-Ray Angiographic Image||CIOD|
|RT Structure Set||CIOD|
|Digital X-Ray Image||CIOD|
|Digital Mammography X-Ray Image||CIOD|
|Digital Intra-Oral X-Ray Image||CIOD|
|RT Beams Treatment Record||CIOD|
|RT Brachy Treatment Record||CIOD|
|RT Treatment Summary Record||CIOD|
|VL Endoscopic Image||CIOD|
|VL Microscopic Image||CIOD|
|VL Slide-Coordinates Microscopic Image||CIOD|
|VL Photographic Image||CIOD|
|Video Endoscopic Image||CIOD|
|Video Microscopic Image||CIOD|
|Video Photographic Image||CIOD|
|VL Whole Slide Microscopy Image||CIOD|
|Grayscale Softcopy Presentation State||CIOD|
|Color Softcopy Presentation State||CIOD|
|Pseudo-Color Softcopy Presentation State||CIOD|
|Blending Softcopy Presentation State||CIOD|
|Basic Structured Display||CIOD|
|XA/XRF Grayscale Softcopy Presentation State||CIOD|
|Advanced Blending Presentation State||CIOD|
|Basic Voice Audio||CIOD|
|Basic Cardiac EP||CIOD|
|Arterial Pulse Waveform||CIOD|
|General Audio Waveform||CIOD|
|Basic Text SR||CIOD|
|Key Object Selection Document||CIOD|
|Mammography CAD SR||CIOD|
|Chest CAD SR||CIOD|
|X-Ray Radiation Dose SR||CIOD|
|Spectacle Prescription Report||CIOD|
|Colon CAD SR||CIOD|
|Macular Grid Thickness and Volume Report||CIOD|
|Implantation Plan SR Document||CIOD|
|Comprehensive 3D SR||CIOD|
|Radiopharmaceutical Radiation Dose SR||CIOD|
|Acquisition Context SR||CIOD|
|Simplified Adult Echo SR||CIOD|
|Patient Radiation Dose Structured Report||CIOD|
|Enhanced MR Image||CIOD|
|Enhanced MR Color Image||CIOD|
|Enhanced CT Image||CIOD|
|Deformable Spatial Registration||CIOD|
|Ophthalmic Photography 8 Bit Image||CIOD|
|Ophthalmic Photography 16 Bit Image||CIOD|
|Real World Value Mapping||CIOD|
|Enhanced X-Ray Angiographic Image||CIOD|
|Enhanced X-Ray RF Image||CIOD|
|RT Ion Plan||CIOD|
|RT Ion Beams Treatment Record||CIOD|
|Ophthalmic Tomography Image||CIOD|
|X-Ray 3D Angiographic Image||CIOD|
|X-Ray 3D Craniofacial Image||CIOD|
|Breast Tomosynthesis Image||CIOD|
|Enhanced PET Image||CIOD|
|Enhanced US Volume||CIOD|
|Subjective Refraction Measurements||CIOD|
|Visual Acuity Measurements||CIOD|
|Ophthalmic Axial Measurements||CIOD|
|Intraocular Lens Calculations||CIOD|
|Generic Implant Template||CIOD|
|Implant Assembly Template||CIOD|
|Implant Template Group||CIOD|
|RT Beams Delivery Instruction||CIOD|
|Ophthalmic Visual Field Static Perimetry Measurements||CIOD|
|Intravascular OCT Image||CIOD|
|Ophthalmic Thickness Map||CIOD|
|Surface Scan Mesh||CIOD|
|Surface Scan Point Cloud||CIOD|
|Legacy Converted Enhanced CT Image||CIOD|
|Legacy Converted Enhanced MR Image||CIOD|
|Legacy Converted Enhanced PET Image||CIOD|
|Corneal Topography Map||CIOD|
|Breast Projection X-Ray Image||CIOD|
|Wide Field Ophthalmic Photography Stereographic Projection Image||CIOD|
|Wide Field Ophthalmic Photography 3D Coordinates Image||CIOD|
|RT Brachy Application Setup Delivery Instruction||CIOD|
|Planar MPR Volumetric Presentation State||CIOD|
|Volume Rendering Volumetric Presentation State||CIOD|
|Content Assessment Results||CIOD|
|Table CT Performed Procedure Protocol||CIOD|
|CT Defined Procedure Protocol||CIOD|
|Ophthalmic Optical Coherence Tomography En Face Image||CIOD|
|Ophthalmic Optical Coherence Tomography B-scan Volume Analysis||CIOD|
|Value Representation||Decimal 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.
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.
This may be an estimated value based on assumptions about the Patient’s body size and habitus.
This value is required by [IEC 60601-2-63].
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.
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. Multi-frame Dimension Module Attributes
Dimension Organization Sequence
Sequence that lists the Dimension Organization UIDs referenced by the containing SOP Instance. See Section C.220.127.116.11 for further explanation.
One or more Items shall be included in this Sequence.
>Dimension Organization UID
Uniquely identifies a set of dimensions referenced within the containing SOP Instance. See Section C.18.104.22.168 for further explanation.
Dimension Organization Type
Dimension organization of the instance.
Dimension Index Sequence
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
Contains the Data Element Tag that is used to identify the Attribute connected with the index. See Section C.22.214.171.124 for further explanation.
>Dimension Index Private Creator
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
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.126.96.36.199 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
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
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.188.8.131.52 for further explanation.
>Dimension Description Label
Free text description that explains the meaning of the dimension.
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).
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.
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.
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.
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.
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:
Dimension Index Pointer
Functional Group Pointer
Dimension Index Pointer
Functional Group Pointer
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
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.
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
If Dimension Organization Type (0020,9311) is present with a value of TILED_FULL, then the Per-Frame Functional Group Macros that would otherwise describe the spatial location of each tile explicitly (e.g., the X, Y and Z offsets from the origin in the Slide Coordinate System Plane Position (Slide)), and the optical path, may be omitted.
A value of TILED_FULL indicates that the frames across all Instances of a Concatentation, or a single Instance in the absence of a Concatenation, comprise a non-sparse non-overlapping representation of an entire rectangular region, and are sequentially encoded as successive frames in Pixel Data (7FE0,0010) in an implicit order varying:
first along the row direction from left to right, where the row direction is defined in the Slide Coordinate System by the first three values of Image Orientation (Slide) (0048,0102),
then along the column direction from top to bottom, where the column direction is defined in the Slide Coordinate System by the second three values of Image Orientation (Slide) (0048,0102),
then along the depth direction from the glass slide towards the coverslip, where the depth direction is defined in the Slide Coordinate System from zero to positive,
then along optical paths, where the direction is defined by successive Items of the Optical Path Sequence (0048,0105) in the order in which they are listed in that Sequence.
If Dimension Organization Type (0020,9311) is absent or has a value of TILED_SPARSE, then the spatial location of each tile is explicitly encoded using information in the Per-Frame Functional Group Sequence, and the recipient shall not make any assumption about the spatial position or optical path or order of the encoded frames but shall rely on the values of the relevant Per-Frame Functional Group Macro.
[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.