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Part Description

LP76148-3   Pressure half time.velocity.max
Pressure half-time is the time needed for the atrioventricular pressure gradient to reduce to half its initial measurement during ventricular diastole. It is primarily assessed through Doppler echocardiography though more invasive cardiac catherization and provides a means of calculating the approximate mitral valve area and evaluating mitral valve stenosis regurgitation. Caution should be used when applying pressure half-time measurements in patients with prosthetic mitral valves, mitral commissurotomy, tachycardia, arrhythmias, and aortic insufficiency. PMID: 21044983 Source: Regenstrief LOINC

LOINC Names Get Info

Fully-Specified Name
Pressure half time.velocity.max:Time:Pt:Tricuspid valve:Qn:US
Long Common Name
Tricuspid valve Pressure half time velocity maximum by US
Short Name
TV PHT vel max US

Part Model Get Info

  • Component
    Pressure half time.velocity.max
    LP76148-3
    • Analyte
      Pressure half time.velocity.max
      LP76148-3
      • Component Numerator
        Pressure half time.velocity.max
        LP76148-3
        • Component Numerator Core
          Pressure half time.velocity.max
          LP76148-3
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    Time
    LP6879-3
  • Time
    Pt
    LP6960-1
  • System
    Tricuspid valve
    LP7654-9
    • System Core
      Tricuspid valve
      LP7654-9
    • Super System
      NULL
       
  • Scale
    Qn
    LP7753-9
  • Method
    US
    LP6572-4

Basic Attributes

Class
CARD.US
Type
Clinical
First Released
Version 1.0m
Last Updated
Version 2.54 (MAJ)
Change Reason
Corrected Property from "TimeDif" to "Time" because the result is a time duration, not the difference between two durations.
Order vs. Observation
Observation

Language Variants Get Info

TagLanguageTranslation
el-GRGreek (Greece)Χρόνος ημίσειας πίεσης.ταχύτητα.μέγ:Time:Pt:Τριγλώχινα βαλβίδα:Qn:ΗΠΑ
Synonyms: CARD.US Pt Qn Time ΗΠΑ Μέγ Πίεση Ταχύτητα.μέγιστη Τριγλώχινα βαλβίδα Χρόνος ημίσειας πίεσης Χρόνος ημίσειας πίεσης.ταχύτητα.μέγ
es-ARSpanish (Argentina)tiempo medio de presión.velocidad.máxima:diferencia de tiempo:punto en el tiempo:válvula tricúspide:cuantitativo:ultrasonido
es-MXSpanish (Mexico)Presión medio tiempo velocidad máx.:Tiempo:Punto temporal:Válvula tricúspide:Cuantitativo:US
it-ITItalian (Italy)Pressione, emitempo.velocità.massima:Tempo:Pt:Valvola tricuspide:Qn:Ecografia
Synonyms: Eco Ecografia cardiaca Emitempo di pressione Massimo Punto nel tempo (episodio) Tempo (e.g. secondi) Velocità massima di emitempo di pressione
pt-BRPortuguese (Brazil)Tempo de meia pressão.velocidade.máxima:TimeDif:Pt:Valva Tricúspide:Qn:US
Synonyms: ; Pres 1/2T vel max; Pres 1/2T vel; Maximum; Maximal; Largest; Peak; Time difference; Point in time; Random; TV; Quantitative; QNT; Quant; Quan; Ultrasound; ULS; Sonogram; Sonography; Sonograph; Echography; Vel; P1/2T; T1/2; PHT; Cardiology
ru-RURussian (Russian Federation)Давление полупериод.скорость.max:Время:ТчкВрм:Трёхстворчатый клапан:Колич:УЗ
Synonyms: Время (в т.ч. в секундах) Количественный Максимум Точка во времени;Момент Ультразвук (УЗ)
zh-CNChinese (China)压差减半时间.速度.最大值:时间:时间点:三尖瓣:定量型:超声
Synonyms: 压差降半时间.速度.最大值;压差半降时间.速度.最大值;压力减半时间.速度.最大值;压差减半时间.速率.最大值 压差降半时间;压差半降时间;压力减半时间;压力半减时间;压差半减时间 压强 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 心脏病学 心脏病学.超声;心脏超声 时刻;随机;随意;瞬间 时间(如秒);时间(如秒数) 最大;极大值 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 速率.最大值;速度.最大值（极大值、极大、最大、最高值、最高、峰值、高峰）

Example Units

UnitSource
msExample UCUM Units

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=20349-7