TID 3508 Gradient Measurement

TID 3508 Gradient Measurement (Current)
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The Gradient Measurement Template consists of a CONTAINER, with an acquisition context of the measurement anatomic site, and containing the gradient measurement. This implies that the name of the measurement is effectively post-coordinated from the measurement name, the Hemodynamic Measurement Group container (procedure phase) name, and the acquisition context (finding site) value.

Type:: Extensible
Order:: Significant
Root:: No

Table TID 3508. Gradient Measurement

	NL	Rel with Parent	VT	Concept Name	VM	Req Type	Condition	Value Set Constraint
1			CONTAINER	EV (122123, DCM, "Gradient assessment")	1	M
2	>		INCLUDE	DTID 3530 “Hemodynamic Acquisition Context”	1	MC	XOR with Rows 3 & 4 IFF single location is appropriate	$LocationName = EV (363698007, SCT, "Finding Site") $LocationValue = DCID 3610 “Gradient Source Location”
3	>		INCLUDE	DTID 3530 “Hemodynamic Acquisition Context”	1	MC	XOR with Row 2 IFF a dual location is appropriate	$LocationName = EV (121116, DCM, "Proximal Finding Site") $LocationValue = DCID 3630 “Cardiovascular Anatomic Location”
4	>		INCLUDE	DTID 3530 “Hemodynamic Acquisition Context”	1	MC	XOR with Row 2 IFF a dual location is appropriate	$LocationName = EV (121117, DCM, "Distal Finding Site") $LocationValue = DCID 3630 “Cardiovascular Anatomic Location”
5	>	CONTAINS	INCLUDE	DTID 300 “Measurement”	1-n	M		$Measurement = EV (251081004, SCT, "Pressure Gradient") $Units = DCID 3500 “Pressure Unit” $Derivation = DCID 3627 “Measurement Type”
6	>	CONTAINS	INCLUDE	DTID 3550 “Pressure Waveform Measurements”	1-n	U

Content Item Descriptions

Row 5

Is used to encode the gradient measurements. Uses TID 300 “Measurement” for the Content Item structure of the measurements. That Template allows an INFERRED FROM relationship to other numeric measurements used in the computation or derivation of the current measurement. In the case of a gradient measurement, the pressure measurements at the distal and proximal locations may thus be explicitly conveyed.

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