Version 2.80

Term Description

The myocardial index is the left ventricular (LV) mass normalized for body size, which can be approximated by different measures including body surface area (BSA) and height. This term represents a BSA-based index. BSA can be calculated by a number of methods including the Mostellar and Du Bois formulas, or in some cases the average adult BSA, 1.73 m2, is used by default. The area-length formula used to calculate LV mass based on measurements taken with 2D echocardiography is as follows: LV mass = 1.055 x 5/6(outer short-axis area x length + 1 cm - inner short-axis area x length). PMID: 2936235

Fully-Specified Name

Component
Myocardial mass/Body surface area
Property
ArMass
Time
Pt
System
Heart.ventricle.left
Scale
Qn
Method
US.2D+Calculated by area-length method

Additional Names

Long Common Name
Left ventricular Myocardial mass/Body surface area [Mass/Area] by US.2D+Calculated by area-length method
Short Name
LV Myo mass/BSA US.2D+A-L

Basic Attributes

Class
CARD.US
Type
Clinical
First Released
Version 2.52
Last Updated
Version 2.54 (MIN)
Order vs. Observation
Observation

Formula (Readable)

Myocardial index = LV mass/Body surface area

Language Variants Get Info

Tag Language Translation
el-GR Greek (Greece) Μάζα μυοκαρδίου/Επιφάνεια σώματος:ArMass:Pt:Καρδιά.κοιλία.αριστερή:Qn:Υπερηχογράφημα.2D+Υπολογιζόμενο με τη μέθοδο επιφανείας-μήκους
Synonyms: ArMass Επιφάνεια Επιφάνεια σώματος Μάζα μυοκαρδίου
es-MX Spanish (Mexico) Masa miocárdica / Área de superficie corporal:ArMass:Punto temporal:Corazón.ventrículo.izquierdo:Cuantitativo:US.2D+Calculated by area-length method
it-IT Italian (Italy) Massa miocardica/Area di superficie corporea:ArMass:Pt:Cuore.ventricolo.sinistro:Qn:Eco.2D+Cacolata da metodo area lunghezza
Synonyms: Eco Ecografia 2D Ecografia 2D.calcolata Ecografia cardiaca Punto nel tempo (episodio) Ventricolo cardiaco Ventricolo cardiaco Sinistro
zh-CN Chinese (China) 心肌质量/体表面积:质量/面积:时间点:心脏.心室.左侧:定量型:超声.2D+面积-长度计算法
Synonyms: BSA L LT 二维超声;二维超声检查;超声.二维;超声检查.2D;超声检查.二维 体表面积（Body surface area，BSA） 单位面积的质量 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 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 心肌重量;Myocardial mass;MM 心脏病学 心脏病学.超声;心脏超声 时刻;随机;随意;瞬间 物体 计算;计算型方法 超声.二维+计算法 超声.二维+面积-长度计算法 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 身体表面 身体表面积 身体表面面积;身体表面积;BSA 面;表层;上面;外表;表象;面上

Example Units

Unit Source
g/m2 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=77900-9