CR ImageCIOD
CT ImageCIOD
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
PatientMModule - Patient
Clinical Trial SubjectUModule - Patient
General StudyMModule - Study
Patient StudyUModule - Study
Clinical Trial StudyUModule - Study
RT SeriesMModule - Series
Clinical Trial SeriesUModule - Series
Frame of ReferenceUModule - Frame of Reference
General EquipmentMModule - Equipment
General ImageMModule - Image
General ReferenceUModule - Image
Image PixelMModule - Image
Contrast/BolusCModule - Image
CineCModule - Image
Multi-frameCModule - Image
DeviceUModule - Image
RT ImageMModule - Image
(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
(0028,0103) Pixel Representation1Unsigned Short
(0028,1040) Pixel Intensity Relationship3Code String
(0028,1041) Pixel Intensity Relationship Sign1CSigned Short
(3002,0002) RT Image Label1Short String
(3002,0003) RT Image Name3Long String
(3002,0004) RT Image Description3Short Text
(0008,0008) Image Type1Code String
(0008,0064) Conversion Type2Code String
(3002,000A) Reported Values Origin2CCode String
(3002,000C) RT Image Plane1Code String
(3002,000D) X-Ray Image Receptor Translation3Decimal String
(3002,000E) X-Ray Image Receptor Angle2Decimal String
(3002,0010) RT Image Orientation2CDecimal String
(3002,0011) Image Plane Pixel Spacing2Decimal String
(3002,0012) RT Image Position2Decimal String
(3002,0020) Radiation Machine Name2Short String
(300A,00B3) Primary Dosimeter Unit2Code String
(3002,0022) Radiation Machine SAD2Decimal String
(3002,0024) Radiation Machine SSD3Decimal String
(3002,0026) RT Image SID2Decimal String
(3002,0028) Source to Reference Object Distance3Decimal String
(300C,0002) Referenced RT Plan Sequence3Sequence
(300C,0006) Referenced Beam Number3Integer String
(300C,0022) Referenced Fraction Group Number3Integer String
(3002,0029) Fraction Number3Integer String
(300C,0008) Start Cumulative Meterset Weight3Decimal String
(300C,0009) End Cumulative Meterset Weight3Decimal String
(3002,0030) Exposure Sequence3Sequence
(3002,0040) Fluence Map Sequence1CSequence
(300A,011E) Gantry Angle3Decimal String
(300A,014A) Gantry Pitch Angle3Single
(300A,0120) Beam Limiting Device Angle3Decimal String
(300A,0122) Patient Support Angle3Decimal String
(300A,0124) Table Top Eccentric Axis Distance3Decimal String
(300A,0125) Table Top Eccentric Angle3Decimal String
(300A,0140) Table Top Pitch Angle3Single
(300A,0144) Table Top Roll Angle3Single
(300A,0128) Table Top Vertical Position3Decimal String
(300A,0129) Table Top Longitudinal Position3Decimal String
(300A,012A) Table Top Lateral Position3Decimal String
(300A,012C) Isocenter Position3Decimal String
(0018,5100) Patient Position1CCode String
(0018,1150) Exposure Time3Integer String
(0018,9328) Exposure Time in ms3Double
(3002,0032) Meterset Exposure3Decimal String
Modality LUTUModule - Image
VOI LUTUModule - Image
ApprovalUModule - Image
SOP CommonMModule - Image
Common Instance ReferenceUModule - Image
Frame ExtractionCModule - Image
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
Encapsulated STLCIOD

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

Data synced with official DICOM standard on 27 November 2018. 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.

Patient Position Attribute

Tag(0018,5100)
TypeConditionally Required (1C)
KeywordPatientPosition
Value Multiplicity1
Value RepresentationCode String (CS)

Patient position descriptor relative to the patient support device.

Required if Isocenter Position (300A,012C) is present. May be present otherwise.

See Section C.8.8.12.1.2 for Defined Terms and further explanation.

Note

The orientation of the patient relative to the patient support device is denoted in the same manner as in the RT Patient Setup Module. It defines the relation of the DICOM Patient-Based Coordinate System identified by the Frame of Reference Module of the RT Image to the IEC coordinate system and together with Isocenter Position (300A,012C) allows the RT Image to be placed into the Patient Frame of Reference. It also allows a system using an RT Image to verify that the patient is setup in a similar position relative to the patient support device.

Section C.8.8.12.1.2

C.8.8.12.1.2 Patient Position

Defined Terms for Patient Position shall be those specified in Section C.7.3.1.1.2, plus the following:

Defined Terms:

SITTING

In the sitting position, the patient's face is towards the front of the chair

RT Patient Setup Module

C.8.8.12 RT Patient Setup Module

The RT Patient Setup Module contains information describing the positioning of the patient with respect to the treatment machine, along with any fixation devices used. It also describes the shielding devices applied to the patient. The Module contains a Sequence of patient setup descriptions, each of which may be referenced by one of more beams or brachy application setups.

Table C.8-48. RT Patient Setup Module Attributes

Attribute Name

Tag

Type

Attribute Description

Patient Setup Sequence

(300A,0180)

1

Sequence of patient setup data for current plan.

One or more Items shall be included in this Sequence.

>Patient Setup Number

(300A,0182)

1

Identification number of the Patient Setup. The value of Patient Setup Number (300A,0182) shall be unique within the RT Plan in which it is created.

>Patient Setup Label

(300A,0183)

3

The user-defined label for the Patient Setup.

>Patient Position

(0018,5100)

1C

Patient position descriptor relative to the equipment. Required if Patient Additional Position (300A,0184) is not present. See Section C.8.8.12.1.2 for Defined Terms and further explanation.

>Patient Additional Position

(300A,0184)

1C

User-defined additional description of patient position. Required if Patient Position (0018,5100) is not present.

>Referenced Setup Image Sequence

(300A,0401)

3

Sequence of setup verification images for this patient setup.

One or more Items are permitted in this Sequence.

See Section C.8.8.12.1.1

>>Setup Image Comment

(300A,0402)

3

Comment on the Setup Image.

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

>Fixation Device Sequence

(300A,0190)

3

Sequence of Fixation Devices used in Patient Setup.

One or more Items are permitted in this Sequence.

>>Fixation Device Type

(300A,0192)

1

Type of Fixation Device used during in Patient Setup.

Defined Terms:

BITEBLOCK

HEADFRAME

MASK

MOLD

CAST

HEADREST

BREAST_BOARD

BODY_FRAME

VACUUM_MOLD

WHOLE_BODY_POD

RECTAL_BALLOON

>>Fixation Device Label

(300A,0194)

2

User-defined label identifier for Fixation Device.

>>Fixation Device Description

(300A,0196)

3

User-defined description of Fixation Device.

>>Fixation Device Position

(300A,0198)

3

Position/Notch number of Fixation Device.

>>Fixation Device Pitch Angle

(300A,0199)

3

The Fixation Device Pitch Angle, i.e., orientation of PITCHED FIXATION DEVICE coordinate system with respect to IEC PATIENT SUPPORT coordinate system (degrees). Pitching is the rotation around IEC PATIENT SUPPORT X-axis.

>>Fixation Device Roll Angle

(300A,019A)

3

The Fixation Device Roll Angle, i.e., orientation of ROLLED FIXATION DEVICE coordinate system with respect to IEC PITCHED FIXATION DEVICE coordinate system (degrees). Rolling is the rotation around IEC PATIENT SUPPORT Y-axis.

>>Accessory Code

(300A,00F9)

3

An identifier for the accessory intended to be read by a device such as a bar-code reader.

>Shielding Device Sequence

(300A,01A0)

3

Sequence of Shielding Devices used in Patient Setup.

One or more Items are permitted in this Sequence.

>>Shielding Device Type

(300A,01A2)

1

Type of Shielding Device used in Patient Setup.

Defined Terms:

GUM

EYE

GONAD

>>Shielding Device Label

(300A,01A4)

2

User-defined label for Shielding Device.

>>Shielding Device Description

(300A,01A6)

3

User-defined description of Shielding Device.

>>Shielding Device Position

(300A,01A8)

3

Position/Notch number of Shielding Device.

>>Accessory Code

(300A,00F9)

3

An identifier for the accessory intended to be read by a device such as a bar-code reader.

>Setup Technique

(300A,01B0)

3

Setup Technique used in Patient Setup.

Defined Terms:

ISOCENTRIC

FIXED_SSD

TBI

BREAST_BRIDGE

SKIN_APPOSITION

>Setup Technique Description

(300A,01B2)

3

User-defined description of Setup Technique.

>Setup Device Sequence

(300A,01B4)

3

Sequence of devices used for patient alignment in Patient Setup.

One or more Items are permitted in this Sequence.

>>Setup Device Type

(300A,01B6)

1

Type of Setup Device used for patient alignment.

Defined Terms:

LASER_POINTER

DISTANCE_METER

TABLE_HEIGHT

MECHANICAL_PTR

ARC

>>Setup Device Label

(300A,01B8)

2

User-defined label for Setup Device used for patient alignment.

>>Setup Device Description

(300A,01BA)

3

User-defined description for Setup Device used for patient alignment.

>>Setup Device Parameter

(300A,01BC)

2

Setup Parameter for Setup Device in appropriate IEC 61217 coordinate system.

Units shall be mm for distances and degrees for angles.

>>Setup Reference Description

(300A,01D0)

3

User-defined description of Setup Reference used for patient alignment.

>>Accessory Code

(300A,00F9)

3

An identifier for the accessory intended to be read by a device such as a bar-code reader.

>Table Top Vertical Setup Displacement

(300A,01D2)

3

Vertical Displacement in IEC TABLE TOP coordinate system (in mm) relative to initial Setup Position, i.e., vertical offset between patient positioning performed using setup and treatment position.

>Table Top Longitudinal Setup Displacement

(300A,01D4)

3

Longitudinal Displacement in IEC TABLE TOP coordinate system (in mm) relative to initial Setup Position, i.e., longitudinal offset between patient positioning performed using setup and treatment position.

>Table Top Lateral Setup Displacement

(300A,01D6)

3

Lateral Displacement in IEC TABLE TOP coordinate system (in mm) relative to initial Setup Position, i.e., lateral offset between patient positioning performed using setup and treatment position.

>Motion Synchronization Sequence

(300A,0410)

3

Sequence of Motion Synchronization.

One or more Items are permitted in this Sequence.

>>Respiratory Motion Compensation Technique

(0018,9170)

1

Technique applied to reduce respiratory motion artifacts.

Defined Terms:

NONE

BREATH_HOLD

REALTIME

image acquisition shorter than respiratory cycle

GATING

Prospective gating

TRACKING

prospective through-plane or in-plane motion tracking

PHASE_ORDERING

prospective phase ordering

PHASE_RESCANNING

prospective techniques, such as real-time averaging, diminishing variance and motion adaptive gating

RETROSPECTIVE

retrospective gating

CORRECTION

retrospective image correction

UNKNOWN

technique not known

>>Respiratory Signal Source

(0018,9171)

1

Signal source from which respiratory motion is derived.

Defined Terms:

NONE

BELT

NASAL_PROBE

CO2_SENSOR

NAVIGATOR

MR navigator and organ edge detection

MR_PHASE

phase (of center k-space line)

ECG

baseline demodulation of the ECG

SPIROMETER

Signal derived from flow sensor

EXTERNAL_MARKER

Signal determined from external motion surrogate

INTERNAL_MARKER

Signal determined from internal motion surrogate

IMAGE

Signal derived from an image

UNKNOWN

Signal source not known

>>Respiratory Motion Compensation Technique Description

(0018,9185)

3

Description of respiratory motion compensation technique.

>>Respiratory Signal Source ID

(0018,9186)

3

Identifies the device providing the respiratory signal.


C.8.8.12.1 RT Patient Setup Module Attributes
C.8.8.12.1.1 Referenced Setup Image Sequence

Images with modality SC or VL serve as visible light photos for visual setup control. Images with modality RTIMAGE serve as reference images on plan level. RT Images present in this Sequence shall not be referenced in the Referenced Reference Image Sequence (300C,0042) of the RT Beams Module.

C.8.8.12.1.2 Patient Position

Defined Terms for Patient Position shall be those specified in Section C.7.3.1.1.2, plus the following:

Defined Terms:

SITTING

In the sitting position, the patient's face is towards the front of the chair

Frame of Reference Module

C.7.4.1 Frame of Reference Module

Table C.7-6 specifies the Attributes necessary to uniquely identify a Frame of Reference that ensures the spatial relationship of Images within a Series. It also allows Images across multiple Series to share the same Frame Of Reference. This Frame Of Reference (or coordinate system) shall be constant for all Images related to a specific Frame Of Reference.

When a Frame of Reference is identified, it is not important how the imaging target (patient, specimen, or phantom) is positioned relative to the imaging equipment or where the origin of the Frame Of Reference is located. It is important that the position of the imaging target and the origin are constant in relationship to a specific Frame Of Reference.

Note

Since the criteria used to group images into a Series is application specific, it is possible for imaging applications to define multiple Series within a Study that share the same imaging space. Previous versions of the DICOM Standard specified that all images within the Series must be spatially related. However, insufficient information was available to determine if multiple Series within a Study were spatially related.

Table C.7-6. Frame of Reference Module Attributes

Attribute Name

Tag

Type

Attribute Description

Frame of Reference UID

(0020,0052)

1

Uniquely identifies the Frame of Reference for a Series. See Section C.7.4.1.1.1 for further explanation.

Position Reference Indicator

(0020,1040)

2

Part of the imaging target used as a reference. See Section C.7.4.1.1.2 for further explanation.


C.7.4.1.1 Frame of Reference Attribute Descriptions
C.7.4.1.1.1 Frame of Reference UID

The Frame of Reference UID (0020,0052) shall be used to uniquely identify a Frame of Reference for a Series. Each Series shall have a single Frame of Reference UID. However, multiple Series within a Study may share a Frame of Reference UID. All images in a Series that share the same Frame of Reference UID shall be spatially related to each other.

Note

  1. Previous versions of this Standard defined a Data Element "Location", which has been retired. Frame of Reference UID provides a completely unambiguous identification of the image location reference used to indicate position.

  2. A common Frame of Reference UID may be used to spatially relate localizer images with a set of transverse images. However, in some cases (e.g., multiple localizer images being related to a single set of transverse images) a common Frame of Reference UID may not be sufficient. The Referenced Image Sequence (0008,1140) provides an unambiguous method for relating localizer images.

C.7.4.1.1.2 Position Reference Indicator

The Position Reference Indicator (0020,1040) specifies the part of the imaging target that was used as a reference point associated with a specific Frame of Reference UID. The Position Reference Indicator may or may not coincide with the origin of the fixed Frame of Reference related to the Frame of Reference UID.

For a Patient-related Frame of Reference, this is an anatomical reference point such as the iliac crest, orbital-medial, sternal notch, symphysis pubis, xiphoid, lower costal margin, or external auditory meatus, or a fiducial marker placed on the patient. The Patient-Based Coordinate System is described in Section C.7.6.2.1.1.

For a slide-related Frame of Reference, this is the slide corner as specified in Section C.8.12.2.1 and shall be identified in this Attribute with the value "SLIDE_CORNER". The slide-based coordinate system is described in Section C.8.12.2.1.

For an Ophthalmic Coordinate System, the Frame of Reference is based upon the corneal vertex. The corneal vertex is determined by the measuring instrument and shall be identified in this Attribute with the value CORNEAL_VERTEX_R (for the right eye) or CORNEAL_VERTEX_L (for the left eye). The Ophthalmic Coordinate System is described in Section C.8.30.3.1.4.

The Position Reference Indicator shall be used only for annotation purposes and is not intended to be used as a mathematical spatial reference.

Note

The Position Reference Indicator may be encoded as zero length when it has no meaning, for example, when the Frame of Reference Module is required to relate mammographic images of the breast acquired without releasing breast compression, but where there is no meaningful anatomical reference point as such.