Version 2.78

Part Description

LP99764-0   A wave duration
The A wave represents the flow of blood through the mitral or tricuspid valve into the ventricle (ventricular filling) during atrial contraction. During the A wave, upper-case A represents the blood flow velocity (LOINC component: blood flow velocity.A wave) and lower-case a prime (a') represents the annular tissue velocity (LOINC component: tissue velocity.A wave). The A and a' waves follow the E (LOINC component: blood flow velocity.E wave) and e' waves (LOINC component: tissue velocity.E wave), which represent ventricular filling during early diastole, before the start of atrial contraction. PMID: 20451803 Source: DICOM, PMID: 20451803

Fully-Specified Name

Component
A wave duration
Property
Time
Time
Pt
System
Pulmonary vein
Scale
Qn
Method
US.doppler.PW

Additional Names

Short Name
Pulm vein A wave duration DOP.PW

Basic Attributes

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

Language Variants Get Info

Tag Language Translation
es-MX Spanish (Mexico) Una duración de onda:Tiempo:Punto temporal:Vena pulmonar:Cuantitativo:US.doppler.PW
it-IT Italian (Italy) Onda A, durata:Tempo:Pt:Vena polmonare:Qn:Eco.doppler.PW
Synonyms: Durata dell''onda A Eco Ecografia cardiaca Ecografia.doppler Ecografia.doppler.PW;Ecografia.doppler.Pulsato Punto nel tempo (episodio) Tempo (e.g. secondi)
zh-CN Chinese (China) A 波持续时间:时间:时间点:肺静脉:定量型:超声.多普勒.PW
Synonyms: A 型 A 波持续时间（持续时长、时长、时间长度、时间、时间长短、为时、为期、历时、延续时间、持久时间、持续期） 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 心脏超声.多普勒 持续时长;时长;时间长度;为时;为期;历时;延续时间;持久时间 时刻;随机;随意;瞬间 时间(如秒);时间(如秒数) 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

Unit Source
s Example UCUM Units

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=78184-9