77910-8
ClinicalAortic valve Effective regurgitant orifice area by US.doppler+Calculated by volumetric method
Definition
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]
LOINC 6-Axis Classification
Component
Effective regurgitant orifice area
Property
Area
Time Aspect
Pt
System
Aortic valve
Scale Type
Qn
Method Type
US.doppler+Calculated by volumetric method
Details
Class
CARD.US
Order/Observation
Observation
Short Name
AV EROA DOP+Calc by vol
Related Names
Frequently Asked Questions
What is LOINC code 77910-8?
LOINC code 77910-8 identifies "Aortic valve Effective regurgitant orifice area by US.doppler+Calculated by volumetric method". 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]
What does 77910-8 measure?
This code measures Effective regurgitant orifice area in Aortic valve. It belongs to the CARD.US class in the LOINC classification.
What is LOINC?
LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.