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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

LOINC Names Get Info

Fully-Specified Name
Effective orifice area.diastole:Area:Pt:Mitral valve:Qn:US.doppler.pressure half time
Long Common Name
Mitral valve Effective orifice area during diastole by US.doppler pressure half time
Short Name
MV EOA dias DOP PHT

Part Model Get Info

  • Component
    Effective orifice area.diastole
    LP203313-4
    • Analyte
      Effective orifice area.diastole
      LP203313-4
      • Component Numerator
        Effective orifice area.diastole
        LP203313-4
        • Component Numerator Core
          Effective orifice area.diastole
          LP203313-4
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    Area
    LP6782-9
  • Time
    Pt
    LP6960-1
  • System
    Mitral valve
    LP7424-7
    • System Core
      Mitral valve
      LP7424-7
    • Super System
      NULL
       
  • Scale
    Qn
    LP7753-9
  • Method
    US.doppler.pressure half time
    LP6623-5

Basic Attributes

Class
CARD.US.DICOM
Type
Clinical
First Released
Version 2.54
Last Updated
Version 2.67 (MIN)
Order vs. Observation
Observation

Language Variants Get Info

TagLanguageTranslation
el-GRGreek (Greece)Επιφάνεια αποτελεσματικού στομίου.διαστολή:Επιφάνεια:Pt:Μιτροειδής βαλβίδα:Qn:Υπερηχογράφημα.doppler.χρόνος ημίσειας πίεσης
Synonyms: CARD.US CARD.US.DICOM Pt Qn Επιφάνεια Επιφάνεια αποτελεσματικού στομίου.διαστολή ΗΠΑ Μιτροειδής βαλβίδα Περιοχή στομίου Υπερηχογράφημα.doppler Υπερηχογράφημα.doppler.χρόνος ημίσειας πίεσης
es-MXSpanish (Mexico)Área efectiva del orificio diástole:Zona:Punto temporal:La válvula mitral:Cuantitativo:US.doppler.pressure half time
it-ITItalian (Italy)Effettiva area dell'orifizio.diastole:Area:Pt:Valvola mitrale:Qn:Eco.doppler.emitempo di pressione
Synonyms: DICOM Simplified Adult Echo Report concepts Eco Ecografia cardiaca Ecografia.doppler Ecografia.doppler.emitempo di pressione Punto nel tempo (episodio)
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.压差半降时间法
Synonyms: 僧帽瓣 口（孔、孔口、出口、瓣口）面积 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 孔;孔口;出口;瓣口 心脏病学 心脏病学.超声;心脏超声 心脏超声.多普勒 心脏超声.多普勒.压差半降时间法;多普勒超声压差半降时间法;心脏超声.多普勒.PHT;心脏超声.多普勒.压差减半时间;心脏超声.多普勒.压差半降时间 时刻;随机;随意;瞬间 有效口（孔、孔口、出口、瓣口）面积.舒张期（心脏舒张期、心舒期） 超声检查方法;超声检查法;超声波;超声波检查方法;超声波检查法

Example Units

UnitSource
cm2Example UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=80069-8