LOINC
Version 2.66

80067-2Mitral valve Effective orifice area during diastole by US.doppler+Calculated by PISA methodActive

Component
Effective orifice area.diastole
Property
Area
Time
Pt
System
Mitral valve
Scale
Qn
Method
US.doppler+Calculated by PISA method

Additional Names

Short Name
MV EOA diastole PISA

Part Description

LP203313-4   Effective orifice area.diastole
Cardiac valve area can be measured (orifice area) or indirectly calculated (effective orifice area). Direct measurement can be done on echo, and calculations are based on other measurements such as blood flow volume and velocity. [DICOM] The effective orifice area is calculated based on the equation F=A×V, where F is flow, A is area and V is velocity. The velocity is measured directly with Doppler echo and indirectly during cardiac catheterization based on the Torricelli law from the transvalvular pressure gradient: V=√2gh, where g is the velocity of acceleration resulting from gravity and h is the pressure gradient. Therefore, for area as measured by cardiac catheterization, the formula is A=F/√2gh. [PMID: 22547754] Source: Regenstrief LOINC, PMID: 22547754

Basic Attributes

Class
CARD.US.DICOM
Type
Clinical
First Released
Version 2.54
Last Updated
Version 2.54
Order vs. Observation
Observation

Language Variants Get Info

zh-CNChinese (China)
有效口面积.舒张期:面积:时间点:二尖瓣:定量型:超声.多普勒+近端等速表面积计算法

Example Units

Unit Source
cm2 Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=80067-2