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(300A,063A) Treatment Device Identification Sequence1Sequence
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(300A,0675) Equipment Frame of Reference UID1Unique Identifier
(300A,0676) Equipment Frame of Reference Description3Short Text
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(0008,0070) Manufacturer2Long String
(0008,1090) Manufacturer's Model Name2Long String
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(0018,1020) Software Versions2Long String
(0018,1204) Date of Manufacture3Date
(0018,1205) Date of Installation3Date
(0050,0021) Long Device Description3Short Text
(3010,001A) Manufacturer's Model Version2Long String
(3010,001B) Device Alternate Identifier2Unlimited Characters
(3010,001C) Device Alternate Identifier Type1CCode String
(3010,001D) Device Alternate Identifier Format1CLong Text
(3010,0025) Conceptual Volume Sequence2Sequence
(3010,0006) Conceptual Volume UID1Unique Identifier
(3010,0007) Originating SOP Instance Reference Sequence1CSequence
(3010,0008) Conceptual Volume Constituent Sequence1CSequence
(3010,0007) Originating SOP Instance Reference Sequence1Sequence
(3010,000D) Conceptual Volume Constituent Index1Unsigned Short
(3010,0012) Conceptual Volume Constituent Segmentation Reference Sequence1CSequence
(3010,0013) Constituent Conceptual Volume UID1Unique Identifier
(3010,000A) Equivalent Conceptual Volumes Sequence3Sequence
(3010,000C) Conceptual Volume Combination Expression1CUnlimited Text
(3010,000E) Conceptual Volume Combination Flag1Code String
(3010,000F) Conceptual Volume Combination Description2CShort Text
(3010,0010) Conceptual Volume Segmentation Defined Flag1Code String
(3010,0011) Conceptual Volume Segmentation Reference Sequence1CSequence
(3010,0014) Derivation Conceptual Volume Sequence3Sequence
(3010,002D) Device Label1Long String
(3010,002E) Device Type Code Sequence1Sequence
(3010,0039) Device Index1Unsigned Short
(3010,0043) Manufacturer's Device Identifier2Short Text
(300A,0687) Number of Patient Support Devices1Unsigned Short
(300A,0688) RT Beam Modifier Definition Distance1Double
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Built with by Innolitics, a team of medical imaging software developers.

Data synced with official DICOM standard on 18 April 2024. The DICOM Standard is under continuous maintenance, and the current official version is available at http://www.dicomstandard.org/current/. DICOM Parts 3, 4, 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.

Conceptual Volume Constituent Sequence Attribute

Tag(3010,0008)
TypeConditionally Required (1C)
KeywordConceptualVolumeConstituentSequence
Value Multiplicity1
Value RepresentationSequence (SQ)

References to Conceptual Volumes which are constituents of this Conceptual Volume.

See Section 10.34.1.1.

Required if Conceptual Volume Combination Flag (3010,000E) equals YES.

One or more Items shall be included in this Sequence.

The combined Conceptual Volume UID shall not be included in the Sequence.

Section 10.34.1.1

10.34.1.1 Conceptual Volume Combination Expression

For Conceptual Volumes specified as a combination of other Conceptual Volumes, the combination logic is specified by the text string value of the Conceptual Volume Combination Expression (3010,000C).

A nested list notation is used to apply geometric operators to a set of Conceptual Volumes.

The first element of the list shall be one of the following geometric operators:

UNION

geometric union of two or more arguments

INTERSECTION

geometric intersection of two or more arguments

NEGATION

geometric inverse of a single argument

SUBTRACTION

geometric subtraction of second argument from the first

XOR

geometric exclusive disjunction of two arguments

Note

The result of a NEGATION operation is well-defined only if used as an operand to an INTERSECTION. NEGATION without context to an INTERSECTION results in an infinite Volume.

Subsequent elements shall specify arguments of the geometric operator. An argument is either a Conceptual Volume Constituent Index (3010,000D) value (i.e., positive integer) or a parenthesized list of operations.

The grammar for the Conceptual Volume Combination Expression (<sexpr>) is shown below in BNF (Backus Naur Form) :

<sexpr>         :: <cv> | <list>
<cv>            :: 1 | 2 | 3 | …
<list>          :: ( <op1><sp><sexpr> ) |
                   ( <op2><sp><sexpr><sp><sexpr> ) |
                   ( <op3><sp><args> )
<args>          :: <sexpr><sp><sexpr> | <args><sp><sexpr>
<op1>           :: NEGATION
<op2>           :: SUBTRACTION | XOR
<op3>           :: UNION | INTERSECTION
<sp>            :: 0x20

Examples:

  1. Union of paired organs 1 and 2 (disjoint)

    Figure 10.34.1.1-1. Conceptual Volume Example of Union of Disjoint Volumes


    Conceptual Volume Combination Expression (3010,000C):

    (UNION 1 2)

    Items in Conceptual Volume Constituent Sequence (3010,0008):

    Table 10.34.1.1-1. Conceptual Volume Example of Union of Disjoint Volumes

    Conceptual Volume Constituent Index (3010,000D)

    Conceptual Volume

    1

    Right Lung

    2

    Left Lung


  2. Union of paired organs 1 and 2 (non-disjoint)

    Figure 10.34.1.1-2. Conceptual Volume Example of Union of Non-disjoint Volumes


    Conceptual Volume Combination Expression (3010,000C):

    (UNION 1 2)

    Items in Conceptual Volume Constituent Sequence (3010,0008) :

    Table 10.34.1.1-2. Conceptual Volume Example of Union of non-disjoint Volumes

    Conceptual Volume Constituent Index (3010,000D)

    Conceptual Volume

    1

    Spinal Cord PRV

    2

    Left Lung


  3. Union of two organs 1 and 2 with excluded volume 3 using NEGATION

    Figure 10.34.1.1-3. Conceptual Volume Example of Intersection and Negation


    Conceptual Volume Combination Expression (3010,000C):

    (INTERSECTION (UNION 1 2) (NEGATION 3) )

    Items in Conceptual Volume Constituent Sequence (3010,0008):

    Table 10.34.1.1-3. Conceptual Volume Example of Intersection and Negation

    Conceptual Volume Constituent Index (3010,000D)

    Conceptual Volume

    1

    Heart

    2

    Left Lung

    3

    CTV


  4. Union of paired organs 1 and 2, with exclusion of multiple volumes 3, 4 and 5

    Figure 10.34.1.1-4. Conceptual Volume Example of Intersection and Union


    Conceptual Volume Combination Expression (3010,000C):

    (INTERSECTION (UNION 1 2) (NEGATION (UNION 3 4 5) ))

    Note

    This combination can be expressed alternatively as:

    (SUBTRACTION (UNION 1 2) (UNION 3 4 5) )

    Items in Conceptual Volume Constituent Sequence (3010,0008):

    Table 10.34.1.1-4. Conceptual Volume Example of Intersection and Union

    Conceptual Volume Constituent Index (3010,000D)

    Conceptual Volume

    1

    R Lung

    2

    L Lung

    3

    Node 1

    4

    Node 2

    5

    CTV


  5. Intersection of overlapping volumes 1 and 2

    Figure 10.34.1.1-5. Conceptual Volume Example of Intersection of Non-disjunct Volumes


    Conceptual Volume Combination Expression (3010,000C):

    (INTERSECTION 1 2)

    Items in Conceptual Volume Constituent Sequence (3010,0008):

    Table 10.34.1.1-5. Conceptual Volume Example of Intersection of non-disjunct Volumes

    Conceptual Volume Constituent Index (3010,000D)

    Conceptual Volume

    1

    Rectum

    2

    Prostate PTV


  6. Intersection of disjoint volumes 1 and 2

    Figure 10.34.1.1-6. Conceptual Volume Example of Intersection of Non-disjunct Volumes


    Conceptual Volume Combination Expression (3010,000C):

    (INTERSECTION 1 2)

    Items in Conceptual Volume Constituent Sequence (3010,0008):

    Table 10.34.1.1-6. Conceptual Volume Example of Intersection of disjunct Volumes

    Conceptual Volume Constituent Index (3010,000D)

    Conceptual Volume

    1

    Bladder

    2

    Prostate