Aortic valve Effective regurgitant orifice area by US.doppler+Calculated by volumetric method 77910-8
LOINC Code
| LOINC code | 77910-8 | ||
|---|---|---|---|
| name | Aortic valve Effective regurgitant orifice area by US.doppler+Calculated by volumetric method | ||
| description | The effective regurgitant orifice area (EROA) is the size of the defect where the valve leaflets are not aligning normally (coaptation defect). The severity of regurgitation is related to the EROA. EROA can be calculated by the Volumetric method as regurgitant volume divided by the velocity time integral of the regurgitant jet velocity (VTIRegJet), which is recorded by continuous wave Doppler. [PMID: 18276823] | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Effective regurgitant orifice area | ||
| property | Area | ||
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | ||
| system | Aortic valve | ||
| scale | Qn = Quantitative: The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256 | ||
| method | US.doppler+Calculated by volumetric method | ||
Additional Names | |||
| short name | AV EROA DOP+Calc by vol | ||
Basic Attributes | |||
| class | CARD.US | ||
| type | 2 Clinical | ||
| order vs. observation | Observation | ||
| formula (readable) | Effective regurgitant orifice area (EROA) = Regurgitant volume/Velocity time integral of the regurgitant jet velocity | ||
| example UCUM units | cm2 The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org) | ||
| example unit | cm2 | ||
Associated Observations | |||
LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations. | |||
History/Usage | |||
| first released | |||
| last updated | 2.56 | ||
| last change type | NAM - change to Analyte/Component | ||
| change reason | Added "area" to the Component to align with the other effective orifice terms | ||
Related Names | |||
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Copyright © 2024 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2024, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.
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