77923-1

LOINC 2.82

Left ventricular Myocardial mass/Height exp 2.7 [Mass/Area] by US.2D+Calculated by truncated ellipsoid method

LV Myo/Ht exp 2.7 US.2D+trunc ellips

Definition

  • 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 an index based on height^2.7. Left ventricular mass calculated by the truncated ellipsoid formula on 2D ultrasound is as follows: 1.05 * Pi * {(b+t)^2 * [2/3 * (a+t)+d-d^3/(3 * (a+t))^2] - b^2 * [2/3 * a + d - d^3/(3 * a^2)]}, where a = distance from the minor axis to the endocardium at the LV apex, b = LV minor radius, t = mean wall thickness, and d = distance from the minor axis to the mitral valve plane. [PMID: 25559473]

Component

  • Myocardial mass/Height exp 2.7

Specimen / system

  • Heart.ventricle.left

Class

  • CARD.US

Property

  • ArMass

Scale

  • Qn

Method

  • US.2D+Calculated by truncated ellipsoid method

Related names

  • 2D US; Calc; Calculation; CARD.US; Cardiac; Cardio; Cardiology; Echography; Heart Disease; Hrt; Hrt ventr; L; LT; LV; MAric; Myo mass; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; ULS; Ultrasound; Ultrasound - 2-dimensional; US.2D+trunc ellips; Ventricular

Index terms

  • 2D US
  • Calc
  • Calculation
  • CARD.US
  • Cardiac
  • Cardio
  • Cardiology
  • Echography
  • Heart Disease
  • Hrt
  • Hrt ventr
  • L
  • LT
  • LV
  • MAric
  • Myo mass
  • Point in time
  • QNT
  • Quan
  • Quant
  • Quantitative
  • Random
  • Sonogram
  • Sonograph
  • Sonography
  • ULS
  • Ultrasound
  • Ultrasound - 2-dimensional
  • US.2D+trunc ellips
  • Ventricular