TID 3205 Calibration Template

The Calibration Template consists of a CONTAINER, with a structure for reporting of the calibration of images used in the analysis.

Parameter Name Parameter Usage
$CalibrationPlane XA Imaging plane

TID 3205 CALIBRATION Type: Extensible Order: Significant

NL Rel with Parent VT Concept Name VM Req Type Condition Value Set Constraint
1 CONTAINER EV (122505, DCM, “Calibration”) 1 M
2 > HAS CONCEPT MOD CODE EV (111031, DCM, “Image View”) 1 U $CalibrationPlane
3 > HAS OBS CONTEXT TEXT EV (111001, DCM, “Algorithm Name”) 1 MC If different from Analysis program specified in the invoking template
4 > HAS OBS CONTEXT TEXT EV (111003, DCM, “Algorithm Version”) 1 MC If different from Analysis program specified in the invoking template
5 > HAS OBS CONTEXT TEXT EV (122405, DCM, “Algorithm Manufacturer”) 1 MC If different from Analysis program specified in the invoking template
6 > CONTAINS CODE EV (122422, DCM, “Calibration Method”) 1 M DCID (3452) Calibration Methods
7 > CONTAINS CODE EV (122421, DCM, “Calibration Object”) 1 MC If row 6 value specifies Calibration Object Used DCID (3451) Calibration Object
8 > CONTAINS NUM EV (122423, DCM, “Calibration Object Size”) 1 MC If row 6 value specifies Calibration Object Used DCID (3510) Catheter Size Units
9 > CONTAINS INCLUDE DTID (300) Measurement 1 M $Measurement = EV (111026, DCM, “Horizontal Pixel Spacing”) $Unit = DT (mm/{pixel}, UCUM, “mm/pixel”) $ImagePurpose = EV (121112, DCM, “Source of Measurement”)
10 > CONTAINS INCLUDE DTID (300) Measurement 1 M $Measurement = EV (111066, DCM, “Vertical Pixel Spacing”) $Unit = DT (mm/{pixel}, UCUM, “mm/pixel”) $ImagePurpose = EV (121112, DCM, “Source of Measurements”)
11 > CONTAINS IMAGE No purpose of reference 1 U

Content Item Descriptions

Row 3 Identifies the Calibration program
Row 4 Identifies the Calibration program version
Row 5 Identifies the Calibration program manufacturer
Row 7 Besides a Sphere and a Catheter, a Distance can be identified as a Calibration Object. In this case a distance measurement of a known dimension of the object is used to calculate the pixel size.
Row 8 The catheter size units is also used to specify the size of other calibration objects (e.g. sphere)
Row 9,10 Spacing in the patient body. Point to a single frame containing the image used for calibration if applicable, the actual measurements may be indicated by a SCOORD (see TID 320, row 3)
Row 11 Secondary Capture image with calibration position