TID 1401 Area Measurement Template

TID 1401 AREA MEASUREMENTType: Extensible Order: Significant

NL Rel with Parent VT Concept Name VM Req Type Condition Value Set Constraint
1 NUM DCID(7471) “Area Measurements” 1 M Value shall be > 0 UNITS = DCID(7461) “Units of Area Measurement”
2 > INFERRED FROM SCOORD EV (121056,DCM, “Area Outline”) 1 MC IF concept name of Row 1 is (G-A16A,SRT, “Area of defined region”), and IFF Row 5 or 6 not present. GRAPHIC TYPE = not {MULTIPOINT}
3 >> R-SELECTED FROM IMAGE 1 MC XOR Row 4
4 >> SELECTED FROM IMAGE 1 MC XOR Row 3
5 > INFERRED FROM IMAGE EV (121214, DCM, “Referenced Segmentation Frame”) 1 MC IF concept name of Row 1 is (G-A16A, SRT, “Area of defined region”), and IFF Row 2 or 6 not present. Reference shall be to a Segmentation Image, with a single value specified in Referenced Frame Number
6 > R- INFERRED FROM IMAGE 1 MC IF concept name of Row 1 is (G-A16A, SRT, “Area of defined region”), and IFF Row 2 or 5 not present. Reference shall be to a Segmentation Image, with a single value specified in Referenced Frame Number
7 > HAS PROPERTIES CODE EV (G-C036, SRT, “Measurement Method") 1 U DCID (7473) General Area Calculation Methods

Content Item Descriptions

Row 2 “Area Outline” A Graphic Type of POINT implies that the object is a single pixel and the object’s area is the area of the pixel. Otherwise the type shall be a closed POLYLINE (start and end point the same) or a CIRCLE or an ELLIPSE.
Rows 5,6 Referenced Frame Number (0008,1160) is an attribute of the IMAGE Content Item. If the Referenced Segmentation SOP Instance has Segmentation Type (0062,0001) value BINARY, it identifies the area of defined (measured) region by pixel values in the referenced frame with value 1. For Segmentation Type value FRACTIONAL, the area is computed by an implementation dependent method. Frame number shall be specified even if the Segmentation SOP Instance has only a single frame.