LOINC
Version 2.66

79911-4Mitral valve medial annulus Tissue velocity.E-wave.max by US.tissue doppler.A4CActive

Component
Tissue velocity.E wave.max
Property
Vel
Time
Pt
System
Mitral valve.annulus.medial
Scale
Qn
Method
US.tissue doppler.A4C

Additional Names

Short Name
MV med ann e-prime Vmax TDI.A4C

Part Description

LP191909-3   Tissue velocity.E wave.max
The e prime (e') wave (LOINC component: tissue velocity.E wave) represents the annular tissue velocity of the mitral or tricuspid valve during early diastole, before atrial contraction. The blood flow velocity during early diastole is known as the E wave (LOINC component: blood flow velocity.E wave). The early diastolic velocity ratio (E/e') is an indicator of left ventricular diastolic function. [PMID: 20451803] The ratio of early diastolic tissue velocity to tissue velocity during atrial contraction (e'/a') may also be an indicator of left ventricular function but is less reliable than the E/e' ratio. [PMID: 12411909] Source: DICOM, PMID: 16534017

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)
组织速度.E 波.最大值:速度:时间点:二尖瓣.环.中部:定量型:超声.组织多普勒.A4C

Example Units

Unit Source
cm/s Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=79911-4