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DICOM PS3.3 2020a - Information Object Definitions​

Page 671​

Attribute Name​

Tag​

Type​

Attribute Description​

 

Ultrasound Color Data​

(0028,0014)​

3​

This element indicates if any ultrasound color data is present in an​

Present​

 

 

image.​

 

 

 

 

Enumerated Values:​

 

 

 

 

00​Ultrasound color data not present in image​

 

 

 

 

01​Ultrasound color data is present in image.​

 

 

 

 

See Section C.8.5.6.1.10​

 

Stage Name​

(0008,2120)​

3​

A Stage is a particular time slice of a protocol in which a set of​

 

 

 

images are collected. The names can be free form text.​

 

 

 

Recommended text for Stress Echo stage names:​

 

 

 

 

PRE-EXERCISE​

 

 

 

 

POST-EXERCISE​

 

 

 

 

PEAK-EXERCISE​

 

 

 

 

RECOVERY​

 

 

 

 

BASELINE​

 

 

 

 

LOW DOSE​

 

 

 

 

PEAK DOSE​

 

Stage Code Sequence​

(0040,000A)​

3​

Sequence of Items describing the performed Ultrasound Protocol​

 

 

 

Stage(s).​

 

 

 

 

One or more Items are permitted in this Sequence.​

 

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

BCID 12002 “Ultrasound Protocol Stage Types”.​

 

Stage Number​

(0008,2122)​

3​

A number that identifies the Stage. Stage Number starts at one.​

View Name​

(0008,2127)​

3​

A View is a particular combination of the position and orientation​

 

 

 

whenasetofimagesareacquired.Imagesareacquiredatthesame​

 

 

 

View in different Stages for the purpose of comparison.​

View Number​

(0008,2128)​

3​

A number that identifies the View. View Number starts at one.​

Number of Event Timers​

(0008,2129)​

3​

The number of event timers used at the time of acquisition of a​

 

 

 

Multi-frame image.​

 

Event Elapsed Time(s)​

(0008,2130)​

3​

An array of values associated with each event timer. Units in​

 

 

 

milliseconds.​

 

Event Timer Name(s)​

(0008,2132)​

3​

Name that identifies the event timer.​

 

IncludeTable10-7“GeneralAnatomyOptionalMacroAttributes”​For intravascular ultrasound, Defined CID 3010 “Cardiovascular​ Anatomic Locations” and Defined CID 3015 “Coronary Arteries” are​ specifiedfortheAnatomicRegionSequenceandDefinedCID3019​ “Cardiovascular Anatomic Location Modifiers” is specified for the​ Anatomic Region Modifier Sequence.​

 

No other CIDs are specified.​

Include Table 10-25 “Optional View and Slice Progression​

See Section C.8.5.6.1.19 for CIDs.​

Direction Macro Attributes”​

 

- Standard -​

Page 672​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

Acquisition DateTime​

(0008,002A)​

1C​

The date and time that the acquisition of data that resulted in this​

 

 

 

image started.​

 

 

 

Required if Modality (0008,0060) = IVUS​

 

 

 

May be present otherwise.​

 

 

 

Note​

 

 

 

The synchronization of this time with an external clock is​

 

 

 

specifiedintheSynchronizationModuleinAcquisitionTime​

 

 

 

Synchronized (0018,1800).​

Trigger Time​

(0018,1060)​

3​

Time interval measured in msec from the start of the R-wave to the​

 

 

 

beginning of data taking​

Nominal Interval​

(0018,1062)​

3​

Average R-R interval used for these data, in msec​

Beat Rejection Flag​

(0018,1080)​

3​

Beat length sorting has been applied.​

 

 

 

Enumerated Values:​

 

 

 

Y​yes​

 

 

 

N​no​

Low R-R Value​

(0018,1081)​

3​

R-R interval low limit for beat rejection, in msec​

High R-R Value​

(0018,1082)​

3​

R-R interval high limit for beat rejection, in msec​

Heart Rate​

(0018,1088)​

3​

Beats per minute.​

IVUS Acquisition​

(0018,3100)​

1C​

Defined Terms:​

 

 

 

MOTOR_PULLBACK​

 

 

 

MANUAL_PULLBACK​

 

 

 

SELECTIVE​

 

 

 

GATED_PULLBACK​

 

 

 

See Section C.8.5.6.1.21​

 

 

 

Required if Modality (0008,0060) = IVUS​

IVUS Pullback Rate​

(0018,3101)​

1C​

Required if IVUS Acquisition (0018,3100) value is​

 

 

 

MOTOR_PULLBACK. Specified in units of mm/sec.​

 

 

 

See Section C.8.5.6.1.22​

IVUS Gated Rate​

(0018,3102)​

1C​

Required if IVUS Acquisition (0018,3100) value is​

 

 

 

GATED_PULLBACK. Specified in units of mm/beat.​

 

 

 

See Section C.8.5.6.1.23​

IVUS Pullback Start Frame​

(0018,3103)​

1C​

Required if IVUS Acquisition (0018,3100) value is​

Number​

 

 

MOTOR_PULLBACK or GATED_PULLBACK.​

 

 

 

See Section C.8.5.6.1.24​

IVUS Pullback Stop Frame​

(0018,3104)​

1C​

Required if IVUS Acquisition (0018,3100) value is​

Number​

 

 

MOTOR_PULLBACK or GATED_PULLBACK.​

 

 

 

See Section C.8.5.6.1.25​

Lesion Number​

(0018,3105)​

3​

Identifier(s)ofthelesion(s)ofinterestimagedwithinthecurrentSOP​

 

 

 

Instance. Each lesion shall have a unique numeric integer identifier​

 

 

 

within the Study.​

See Section C.8.5.6.1.26.​

- Standard -​

 

DICOM PS3.3 2020a - Information Object Definitions​

Page 673​

Attribute Name​

Tag​

Type​

Attribute Description​

 

Output Power​

(0018,5000)​

3​ Manufacturer defined character string description of ultrasound​

 

 

 

output level(s) used in generating a given image. Data may be​

 

 

 

expressed in dB, %, W/cm2, etc.​

 

Transducer Data​

(0018,5010)​

3​ Manufacturer defined code or description of ultrasound transducer​

 

 

 

used.​

 

Transducer Type​

(0018,6031)​

3​

Defined Terms:​

 

 

 

 

SECTOR_PHASED​

 

 

 

 

SECTOR_MECH​

 

 

 

 

SECTOR_ANNULAR​

 

 

 

 

LINEAR​

 

 

 

 

CURVED LINEAR​

 

 

 

 

SINGLECRYSTAL​

 

 

 

 

SPLIT XTAL CWD​

 

 

 

 

IV_PHASED​

 

 

 

 

IV_ROT XTAL​

 

 

 

 

IV_ROT MIRROR​

 

 

 

 

ENDOCAV_PA​

 

 

 

 

ENDOCAV_MECH​

 

 

 

 

ENDOCAV_CLA​

 

 

 

 

ENDOCAV_AA​

 

 

 

 

ENDOCAV_LINEAR​

 

 

 

 

VECTOR_PHASED​

 

Focus Depth​

(0018,5012)​

3​ The depth, from the transducer face, of the manufacturer defined​

 

 

 

beam focus used for the image, in cm.​

 

Processing Function​

(0018,5020)​

3​ Manufacturerdefineddescriptionofprocessingofechoinformation.​

 

 

 

Data may include code or description of gain (initial, overall, TGC,​

 

 

 

dynamic range, etc.), preprocessing, postprocessing, Doppler​

 

 

 

processingparameters,e.g.,cutofffilters,etc.,asusedingenerating​

 

 

 

a given image.​

 

Mechanical Index​

(0018,5022)​

3​ See Section C.8.5.6.1.8 for Description.​

 

Bone Thermal Index​

(0018,5024)​

3​ See Section C.8.5.6.1.8 for Description.​

 

Cranial Thermal Index​

(0018,5026)​

3​ See Section C.8.5.6.1.8 for Description.​

 

Soft Tissue Thermal Index​

(0018,5027)​

3​ See Section C.8.5.6.1.8 for Description.​

 

Soft Tissue-focus Thermal​

(0018,5028)​

3​ See Section C.8.5.6.1.8 for Description.​

 

Index​

 

 

 

 

SoftTissue-surfaceThermal​

(0018,5029)​

3​ See Section C.8.5.6.1.8 for Description.​

 

Index​

 

 

 

 

Depth of Scan Field​

(0018,5050)​

3​ The depth, in mm, from the transducer face to the deepest point​

 

 

 

included in the displayed image - the field of view.​

 

Overlay Subtype​

(60xx,0045)​

3​ DefinedTermthatidentifiestheintendedpurposeoftheROIOverlay​

Type.​

See Section C.8.5.6.1.11 for specialization.​

Note​

Referenced Overlay Sequence (0008,1130) and Referenced Curve Sequence (0008,1145) were previously included in this​ Module as optional Attributes but have been retired. See PS3.3-2004.​

- Standard -​

Page 674​

DICOM PS3.3 2020a - Information Object Definitions​

C.8.5.6.1 US Image Attribute Descriptions​

C.8.5.6.1.1 Image Type​

For US Images, Image Type (0008,0008) is specified to be Type 2.​

Defined Terms for Value 3:​

ABDOMINAL​

BREAST​

CHEST​

ENDOCAVITARY​

ENDORECTAL​

ENDOVAGINAL​

EPICARDIAL​

FETAL HEART​

GYNECOLOGY​

INTRACARDIAC​

INTRAOPERATIVE​

INTRAVASCULAR​

MUSCULOSKELETAL​

NEONATAL HEAD​

OBSTETRICAL​

OPHTHALMIC​

PEDIATRIC​

PELVIC​

RETROPERITONEAL​

SCROTAL​

SMALL PARTS​

TEE​

THYROID​

TRANSCRANIAL​

TTE​

US BIOPSY​

VASCULAR​

Value 4 is constructed as a modality bit map to allow for a description of multi-modality displays. In using this bit map, the sum of the​ values of the various modalities will unambiguously determine the constituent modalities.​

Bit Map Values for Value 4:​

0001​2D Imaging​ 0002​M-Mode​ 0004​CW Doppler​ 0008​PW Doppler​ 0010​Color Doppler​ 0020​Color M-Mode​ 0040​3D Rendering​

0100​Color Power Mode​ 0200​Tissue Characterization​ 0400​Spatially-related frames​

Note​

1.​All Values are hexadecimal encoded as a CS. See PS3.5.​

2.​For example, Color Flow with CW spectral Doppler would have a value 4 = 0015. Note that no assumption should be​ made in Color Doppler or Color M-Mode regarding underlying B or M-Mode, respectively.​

3.​See Section A.59.1 for the relationship between a 3D volume set and the 3D Rendering, 3D MPR View, and Spatially-​ related frames image types. In the case of "3D Rendering", Derivation Code Sequence (0008,9215) should be used to​ describe the specific type of 3D rendering (volume rendering, surface rendering, multiplanar reformatting, etc.).​

- Standard -​

DICOM PS3.3 2020a - Information Object Definitions​

Page 675​

C.8.5.6.1.2 Photometric Interpretation​

Defined Terms:​

MONOCHROME2​

PALETTE COLOR​

RGB​

YBR_FULL​

YBR_FULL_422​

YBR_RCT​

YBR_ICT​

YBR_PARTIAL_420​

Note​

The ARGB and YBR_PARTIAL_422 photometric interpretations were previously defined but are retired. See PS3.3 2017b.​

When Samples per Pixel (0028,0002) is greater than 1, Photometric Interpretation (0028,0004) shall be RGB for uncompressed or​ lossless compressed Transfer Syntaxes that do not have defined color space transformations, YBR_ICT for irreversible JPEG 2000​ Transfer Syntaxes, YBR_RCT for reversible JPEG 2000 Transfer Syntaxes, YBR_PARTIAL_420 for MPEG2, MPEG-4 AVC/H.264​ and HEVC/H.265 Transfer Syntaxes, YBR_FULL_422 for JPEG lossy compressed Transfer Syntaxes and YBR_FULL or RGB for​ RLE Transfer Syntaxes.​

See PS3.5 for additional restrictions imposed by compressed Transfer Syntaxes.​

C.8.5.6.1.3 Pixel Representation​

For US Images, Pixel Representation (0028,0103) is specified to use the following.​

Enumerated Values:​

0000H​unsigned integer​

C.8.5.6.1.4 Frame Increment Pointer​

For US Multi-frame images, the Attribute Frame Increment Pointer (0028,0009) of the Multi-frame Module (see Section C.7.6.6) is​ specified by the following.​

Defined Terms:​

00181063​ sequencing by Frame Time (0018,1063)​ 00181065​ sequencing by Frame Time Vector (0018,1065)​

C.8.5.6.1.5 (Retired)​

C.8.5.6.1.6 (Retired)​

C.8.5.6.1.7 (Retired)​

C.8.5.6.1.8 Mechanical Index, Bone Thermal Index, Cranial Thermal Index, Soft Tissue Thermal Index​

Thethermaland/ormechanical indices,whenmade availablebya manufacturer,aredefined accordingtothe StandardforReal-Time​ Display of Thermal and Mechanical Acoustic Output Indices on Diagnostic Ultrasound Equipment, a voluntary performance standard​ jointly published by AIUM and NEMA.​

C.8.5.6.1.9 Image Transformation Matrix and Image Translation Vector​

This section was defined in a previous version of the DICOM Standard. The Section is now retired. See PS3.3-2003.​

C.8.5.6.1.10 Ultrasound Color Data Present​

Note​

This Attribute can be used to indicate if an image contains any Ultrasound color data.​

- Standard -​

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