Материал: part03

DICOM PS3.3 2020a - Information Object Definitions​

Page 1581​

Attribute Name​

Tag​

Type​

Attribute Description​

>Reconstruction End​

(0018,993C)​

1​

Anatomically oriented transverse location where this reconstruction​

Location Sequence​

ends.​

Note​

1.​This represents the end of the data used in the​

reconstruction,notnecessarilytheslicelocationofthelast​

reconstructed slice.​

2.​This represents the intended end location. The operator​

may or may not have selected a location that exactly​

matches this anatomical location.​

3.​In the case where an anatomical reference basis cannot​

be determined or borrowed from the Defined Protocol​

instance, for example when an ad hoc reconstruction is​

beingperformed,theimplementationmayusetheacquired​

volume (128160, DCM, "Acquired Volume") as the​

reference basis with an appropriate offset.​

Only a single Item is permitted in the Sequence.​

>>Include Table 10.27-1 “Reference Location Macro​

BCID1000“CTTransversePlaneReferenceBasis”forReferenceBasis​

Attributes”​

Code Sequence (0018,9902)​

BCID 1010 “Reference Geometry - Planes” for Reference Geometry​

Code Sequence (0018,9903)​

>ReconstructionAlgorithm​

(0018,993D)​

3​

Algorithm used in this reconstruction protocol element.​

Sequence​

Only a single Item is permitted in the Sequence.​

>>Include Table 10-19 “Algorithm Identification Macro​

BCID 10033 “CT Reconstruction Algorithm” for Algorithm Family Code​

Attributes”​

Sequence (0066,002F)​

>Convolution Kernel​

(0018,1210)​

1​

Alabeldescribingtheconvolutionkerneloralgorithmusedtoreconstruct​

the data.​

A single value shall be present.​

>ConvolutionKernelGroup​

(0018,9316)​

1​

A label describing the group that the Convolution Kernel (0018,1210)​

belongs.​

Defined Terms:​

BRAIN​

SOFT_TISSUE​

LUNG​

BONE​

CONSTANT_ANGLE​

>Reconstruction Diameter​

(0018,1100)​

1C​

Thediameterinmmoftheregionfromwhichdatawereusedincreating​

the reconstruction of the image. Data may exist outside this region and​

portions of the patient may exist outside this region. See​

Section C.8.15.3.6.1.​

Required if Reconstruction Field of View (0018,9317) is not present.​

>Reconstruction Field of​

(0018,9317)​

1C​

The field of view width (x-dimension) followed by height (y-dimension)​

View​

as used for reconstruction in mm.​

Page 1582​

Attribute Name​

Tag​

Type​

Attribute Description​

>Reconstruction Target​

(0018,9318)​

3​

The x, y, and z coordinates (in the Patient-Based Coordinate System)​

Center (Patient)​

of the reconstruction center target point as used for reconstruction in​

mm. See Section C.8.15.3.6.1.​

Note​

Ifthereconstructedimageisnotmagnifiedorpannedthevalue​

corresponds with the Data Collection Center (0018,9313)​

Attribute.​

>Reconstruction Target​

(0018,993E)​

3​

An anatomically based description of a point in the patient used as the​

CenterLocationSequence​

reconstruction center target point.​

Note​

This represents the intended reconstruction center location.​

They operator may or may not select a location that exactly​

matches this anatomical location.​

BCID1000“CTTransversePlaneReferenceBasis”forReferenceBasis​

Attributes”​

Code Sequence (0018,9902)​

BCID 1010 “Reference Geometry - Planes” for Reference Geometry​

Code Sequence (0018,9903)​

>Reconstruction Pixel​

(0018,9322)​

1​

Physicaldistanceinthepatientbetweenthecenterofeachreconstructed​

Spacing​

pixel, specified by a numeric pair - adjacent row spacing (delimiter)​

adjacent column spacing in mm. See Section 10.7.1.3 for further​

explanation of the value order.​

>Rows​

(0028,0010)​

1​

Number of rows in the reconstructed image.​

>Columns​

(0028,0011)​

1​

Number of columns in the reconstructed image.​

>Reconstruction Angle​

(0018,9319)​

1​

Angle (in degrees) over which the data from which the frame was​

reconstructed was collected.​

>Image Filter​

(0018,9320)​

3​

A label describing the filter applied to the reconstructed image after the​

original reconstruction has been completed.​

>Image Filter Description​

(0018,9941)​

3​

A description of the nature or effect of the Image Filter (0018,9320).​

E.g., sharpening, noise removing, edge enhancing.​

>Derivation Code​

(0008,9215)​

3​

Additional processing applied to the reconstructed image after image​

Sequence​

filter (if any)​

>Slice Thickness​

(0018,0050)​

1​

Nominal reconstructed slice thickness, in mm.​

>Spacing Between Slices​

(0018,0088)​

1​

Spacing between slices, in mm. The spacing is measured from the​

center-to-center of each slice.​

Slice overlap may be constrained implicitly by constraining the​

Slice Thickness (0018,0050) and Spacing Between Slices​

(0018,0088). However, since each constraint is considered​

independently, the overlap may be any value resulting from​

thecombinationofallowablevaluesforthicknessandspacing.​

>Window Center​

(0028,1050)​

3​

Preferred value for Window Center (0028,1050) in the image instances​

produced by this reconstruction protocol element.​

>Window Width​

(0028,1051)​

3​

Preferred value for Window Width (0028,1051) in the image instances​

produced by this reconstruction protocol element.​

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Attribute Name​

Tag​

Type​

Attribute Description​

>Requested Series​

(0018,9937)​

3​

Requested text to copy into the Series Description(0008,103E) of the​

Description​

images resulting from this reconstruction protocol element.​

>Content Qualification​

(0018,9004)​

3​

Content Qualification Indicator of instances resulting from this​

Reconstruction Protocol Element.​

Page 1584​

Attribute Name​

Tag​

Type​

Attribute Description​

>>Modifiable Constraint​

(0082,0038)​

1C​

Whether this constraint may be encoded in a derived instance with a​

Flag​

different value. See Section C.34.9.4.​

Attribute Name​

Tag​

Type​

Attribute Description​

Storage Protocol​

(0018,9936)​

1​

ParametervaluesforeachstorageprotocolelementintheProtocol.Theoutput​

Element Sequence​

instances of the referenced Acquisition or Reconstruction Protocol Elements​

Page 1585​

Attribute Name​

Tag​

Type​

Attribute Description​

>Source Acquisition​

(0018,9938)​

1C​

A value corresponding to the Element Number (0018,9921) of the Acquisition​

Protocol Element​

Protocol Element for which data is stored.​

Number​

Note​

Source Acquisition Protocol Element references are for storage of​

rawacquisitiondata.Reconstructedslicestorageinvolvesreference​

tothecorrespondingReconstructionProtocolElementin theSource​

Reconstruction Protocol Element Number (0018,993A).​

This may be multi-valued if multiple acquisition protocol element data are​

being stored together.​

Required if Source Reconstruction Protocol Element Number (0018,993A) is​

not present.​

>Source Reconstruction​(0018,993A)​

1C​

The Element Number (0018,9921) corresponding to the Reconstruction​

Protocol Element​

Protocol Element for which data is stored.​

Number​

This may be multi-valued if multiple reconstruction protocol element data are​

being stored together.​

Required if Source Acquisition Protocol Element Number (0018,9938) is not​

present.​

>Source Acquisition​

(0018,9939)​

1C​

TheBeamNumber(300A,00C0)intheAcquisitionProtocolElement(specified​

Beam Number​

in Source Acquisition Protocol Element Number (0018,9938) ) for which data​

is stored. Multiple values may be specified if data for multiple beams is being​

stored.​

Required if SOP Class UID (0008,0016) has a value of​

1.2.840.10008.5.1.4.1.1.200.2 (CT Performed Procedure Protocol Storage)​

andSourceAcquisitionProtocolElementNumber(0018,9938)ispresentand​

only some of the beams in the Acquisition Protocol Element are to be stored.​

>ReferencedSOPClass​ (0008,1150)​

1C​

Uniquely identifies the referenced SOP Class.​

UID​

Required if the referenced acquisition or reconstruction protocol element is​

not in this instance.​

Enumerated Value:​

1.2.840.10008.5.1.4.1.1.200.2​ CTPerformedProcedureProtocolStorage​

>Referenced SOP​

(0008,1155)​

1C​

TheUIDoftheProtocolinstancecontainingtheelementreferencedinSource​

Instance UID​

Reconstruction Protocol Element Number (0018,993A) or Source Acquisition​

Protocol Element Number (0018,9938).​

Required if the referenced acquisition or reconstruction protocol element is​

not in this instance.​

>Output Information​

(0040,4033)​

1​

References to acquired and reconstructed data objects stored as part of this​

Sequence​

storage protocol element.​