Version 2.80

Term Description

This term represents the left ventricular ejection fraction (LVEF) based on left ventricular (LV) end-diastolic and end-systolic volumes as calculated by the Cubed method from measurements taken during M-mode echo. The Cubed method formula for LV end-diastolic volume = (LVIDd)^3, where LVIDd = left ventricular internal dimension at end-diastole, and the formula for LV end-systolic volume = (LVIDs)^3, where LVIDs = left ventricular internal dimension at end-systole. PMID: 5017683

Part Description

LP35012-1   Ejection fraction
In cardiovascular physiology, ejection fraction (Ef) is the fraction of blood pumped out of a ventricle with each heart beat. The term ejection fraction applies to both the right and left ventricles; one can speak equally of the left ventricular ejection fraction (LVEF) and the right ventricular ejection fraction (RVEF). Without a qualifier, the term ejection fraction refers specifically to that of the left ventricle. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Wikipedia , Ejection fraction (Wikipedia)

Fully-Specified Name

Component
Ejection fraction
Property
VFr
Time
Pt
System
Heart.ventricle.left
Scale
Qn
Method
US.M-mode+Calculated by cube method

Additional Names

Long Common Name
Left ventricular Ejection fraction by US.M-mode+Calculated by cube method
Short Name
LV EF US.M-mode+cube

Basic Attributes

Class
CARD.US
Type
Clinical
First Released
Version 2.52
Last Updated
Version 2.52 (MIN)
Order vs. Observation
Observation

Formula (Readable)

Ejection fraction=[(LV end-diastolic volume-LV end-systolic volume)/LV end-diastolic volume]*100

Language Variants Get Info

Tag Language Translation
el-GR Greek (Greece) Κλάσμα εξώθησης:VFr:Pt:Καρδιά.κοιλία.αριστερή:Qn:Υπερηχογράφημα.M-mode+Υπολογιζόμενο με τη μέθοδο κύβου
Synonyms: VFr Κλάσμα εξώθησης
es-MX Spanish (Mexico) Fracción de eyección:VFr:Punto temporal:Corazón.ventrículo.izquierdo:Cuantitativo:US.M-mode+Calculated by cube method
it-IT Italian (Italy) Frazione di eiezione:VFr:Pt:Cuore.ventricolo.sinistro:Qn:Ecografia.M-mode+Calcolata da metodo cube
Synonyms: Eco Ecografia cardiaca FE Frazione di Volume Punto nel tempo (episodio) Ventricolo cardiaco Ventricolo cardiaco Sinistro
zh-CN Chinese (China) 射血分数:体积分数:时间点:心脏.心室.左侧:定量型:超声.M型+立方计算法
Synonyms: EF;喷血分数 L LT 分数 分数类 分级 分级分离 分部分离 分馏 分馏（Fractionation） 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 向左 向左侧 容积分数 左 左侧（Left，LT，L） 左向 左心室;心.室.左侧;心.心室.左侧;心脏.室.左侧 左边 心 心.室;心.心室;心室;心脏.室 心脏病学 心脏病学.超声;心脏超声 心脏超声.M 型;M 型心脏超声;心脏超声.M-型 心脏超声.M-型.计算法 时刻;随机;随意;瞬间 精馏 组份（Fraction） 组份类 组份类（Fractions） 组分 组分类 计算;计算型方法 超声.M型+立方（立方体）计算法 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 部分 部分类 馏分 馏分类

Example Units

Unit Source
% Example UCUM Units

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CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=77889-4