TID 3508 Gradient Measurement

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.

TID 3508Gradient MeasurementType: Extensible Order: Significant

NL Relation with Parent Value Type 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 (G-C0E3, SRT, “Finding Site”) $LocationValue = DCID (3610) Gradient Source Locations
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 Locations
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 Locations
5 > CONTAINS INCLUDE DTID (300) Measurement 1-n M $Measurement = EV (F-023F7, ”Pressure Gradient”) $Units = DCID (3500) Pressure Units $Derivation = DCID (3627) Measurement Type
6 > CONTAINS INCLUDE DTID (3550) Pressure waveform measurements 1-n U

Content Item Descriptions

Row 5, which is used to encode the gradient measurements, uses Template 300 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.