TID 4004 Mammography CAD Composite Feature Template

This template collects a composite feature for a lesion, non-lesion object, or correlation of related objects. The details of the composition are expressed in the Mammography CAD Composite Feature Body (see TID 4005). The data from which the details are inferred, are expressed in the Composite Features (see TID 4004) and/or Single Image Findings (see TID 4006), of which there may be several.

A Composite Feature shall be INFERRED FROM any combination of two or more Composite Features or Single Image Findings or mixture thereof.

TID 4004MAMMOGRAPHY CAD COMPOSITE FEATUREType: Non-Extensible Order: Significant

NL Rel with Parent VT Concept Name VM Req Type Condition Value Set Constraint
1 CODE EV (111015, DCM, “Composite Feature”) 1 M DCID (6016) Mammography Composite Feature
2 > HAS CONCEPT MOD CODE EV (111056, DCM, “Rendering Intent”) 1 M DCID (6034) Intended Use of CAD Output
3 > HAS OBS CONTEXT INCLUDE DTID (4108) Tracking Identifier 1 U
4 > HAS PROPERTIES INCLUDE DTID (4005) Mammography CAD Composite Feature Body 1 M
5 > INFERRED FROM INCLUDE DTID (4004) Mammography CAD Composite Feature 1-n MC At least two items shall be present: two of row 5, two of row 6, or one of each.
6 > INFERRED FROM INCLUDE DTID (4006) Mammography CAD Single Image Finding 1-n MC At least two items shall be present: two of row 5, two of row 6, or one of each.
7 > HAS OBS CONTEXT INCLUDE DTID (4022) CAD Observation Context 1 MC Shall be present only if this feature is incorporated from a different report than its parent.

Content Item Descriptions

Rendering Intent This content item constrains the SCP receiving the Mammography CAD SR IOD in its use of the contents of this template and its target content items. Mammography CAD devices may opt to use data marked “Not for Presentation” or “Presentation Optional” as input to subsequent mammography CAD processing steps. Refer to PS 3.4, Annex O Structured Reporting Standard SOP Classes for SCU and SCP Behavior.
TID 4005 Mammography CAD Composite Feature Body Template

The details of a composite feature are expressed in this template. It is applied to Mammography CAD Composite Feature (TID 4004).

TID 4005MAMMOGRAPHY CAD COMPOSITE FEATURE BODYType: Non-Extensible Order: Significant

NL Rel with Parent VT Concept Name VM Req Type Condition Value Set Constraint
1 CODE EV (111016, DCM, “Composite type”) 1 M DCID (6035) Composite Feature Relations. The value shall be (111155, DCM, “Target content items are related contra-laterally”) if the parent content item has code value (F-01792, SRT, “Focal asymmetric breast tissue”) or (F-01793, SRT, “Asymmetric breast tissue”).
2 CODE EV (111057, DCM, “Scope of Feature”) 1 M DCID (6036) Scope of Feature
3 INCLUDE DTID (4019) CAD Algorithm Identification 1 M
4 NUM EV (111011, DCM, “Certainty of Feature”) 1 U UNITS = (%, UCUM, “Percent”) Value = 0 – 100
5 NUM EV (111047, DCM, “Probability of cancer”) 1 UC May be present only if value of parent is not (111102, DCM, “Non-lesion”) UNITS = (%, UCUM, “Percent”) Value = 0 – 100
6 CODE EV (111042, DCM, “Pathology”) 1-n U BCID (6030) “Mammography Pathology Codes”
7 INCLUDE DTID (1400) Linear Measurement 1-n U If the measured path is encoded, the SCOORD and its by-reference relationship to the IMAGE in TID (1400) “Linear Measurement” shall be used.
8 INCLUDE DTID (1401) Area Measurement 1-n U If the measured path is encoded, the SCOORD and its by-reference relationship to the IMAGE in TID (1401) “Area Measurement” shall be used.
9 INCLUDE DTID (1402) Volume Measurement 1-n U If the measured path is encoded, the SCOORD and its by-reference relationship to the IMAGE in TID (1402) “Volume Measurement” shall be used.
10 INCLUDE DTID (4021) Mammography CAD Geometry 1-n U
11 NUM DCID (6037) Mammography Quantitative Temporal Difference Type 1-n UC May be present only if the value of (111016, DCM, “Composite type”) is (111153, DCM, “Target content items are related temporally”) UNITS = DCID (7460) Units of Linear Measurement, DCID (7461) Units of Area Measurement, DCID (7462) Units of Volume Measurement or DT (1, UCUM, “no units”)
12 > R-INFERRED FROM NUM 2 U The referenced numeric values shall have the same Concept Name. Their UNITS shall be the same as row 11
13 CODE EV (111049, DCM, “Qualitative Difference”) 1-n UC May be present only if the value of (111016, DCM, “Composite type”) is (111153, DCM, “Target content items are related temporally”) DCID (6038) Mammography Qualitative Temporal Difference Type
14 > HAS PROPERTIES TEXT EV (111021, DCM, “Description of Change”) 1 U
15 > R-INFERRED FROM CODE 2 M The referenced code values shall have the same Concept Name and be from the same context group.
16 CODE EV (111048, DCM, “Quadrant location”) 1 U DCID (6020) Quadrant Location
17 CODE EV (111014, DCM, “Clockface or region”) 1 U DCID (6018) Clockface Location or Region
18 CODE EV (111020, DCM, “Depth”) 1 U DCID (6024) Depth
19 CODE EV (111035, DCM, “Lesion Density”) 1 UC May be present only if value of parent is (F-01791, SRT, “Mammographic breast mass”) or (F-01796,SRT,”Mammography breast density”) DCID (6008) Density Modifier
20 CODE EV (M-020F9, SRT, “Shape”) 1 UC May be present only if value of parent is (F-01791, SRT, “Mammographic breast mass”) or (F-01796,SRT,”Mammography breast density”) DCID (6004) Mammography Characteristics of Shape
21 CODE EV (111037, DCM, “Margins”) 1-n UC May be present only if value of parent is (F-01791, SRT, “Mammographic breast mass”) or (F-01796,SRT,”Mammography breast density”) DCID (6006) “Mammography Characteristics of Margin”
22 CODE EV (111009, DCM, “Calcification Type”) 1-n UC May be present only if value of parent is (F-01775,SRT, “Calcification Cluster”) or (F-01776,SRT, “Individual Calcification”) DCID (6010) “Mammography Calcification Types”
23 CODE EV (111008, DCM, “Calcification Distribution”) 1 UC May be present only if value of parent is (F-01775,SRT, “Calcification Cluster”) DCID (6012) “Calcification Distribution Modifier”
24 NUM EV (111038, DCM, “Number of calcifications”) 1 UC May be present only if value of parent is (F-01775,SRT, “Calcification Cluster”) UNITS = EV (1, UCUM, “no units”) Value = Integer 1 – n
25 NUM DCID (6142) Calculated Value 1-n U
26 > HAS CONCEPT MOD CODE EV (121401, DCM, “Derivation”) 1 M DCID (6140) Calculation Methods
27 > INFERRED FROM TEXT EV (112034, DCM, “Calculation Description”) 1 U

Content Item Descriptions

Certainty of Feature The likelihood that the feature analyzed, and classified by the CODE specified in the Composite Feature parent template, is in fact that type of feature.
Volume Measurement If dimensions for a volume are to be stated in terms of length, width, and depth, then one shall use 3 instances of TID (1400) Linear Measurement.
Row 11 Values ( 0 are allowed. The two referenced numeric values are target content items of the first generation Composite Feature or Single Image Finding children of this composite feature. Given the equation, A – B, the value representing A shall be referenced first.
Qualitative Difference The two referenced code values are target content items of the first generation Composite Feature or Single Image Finding children of this composite feature.