Left ventricular Ejection fraction by US.2D+Calculated by modified Simpson method   77892-8

LOINC Code


LOINC code77892-8
nameLeft ventricular Ejection fraction by US.2D+Calculated by modified Simpson method
descriptionThe modified Simpson method is commonly used for volume measurements in 2D cardiac imaging. It uses the biplane method of disks to measure left ventricular volume, meaning that the total volume is calculated by adding together the two-dimensional area measurements of the series of circular or elliptical slices that, taken as a whole, represent the ventricle. [PMID: 16376782] The volume measurements can then be used in calculations of other parameters related to cardiac function, including ejection fraction, cardiac output and cardiac index.
statusACTIVE

Fully-Specified Name

componentEjection fraction
propertyVFr  =  Volume Fraction
timePt  =  Point in time:  To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements.
systemHeart.ventricle.left
scaleQn  =  Quantitative:  The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256
methodUS.2D+Calculated by modified Simpson method

Additional Names

short nameLV EF US.2D+mod Simpson

Basic Attributes

classCARD.US
type2  Clinical
order vs. observationObservation
formula (readable)Ejection fraction=[(LV end-diastolic volume-LV end-systolic volume)/LV end-diastolic volume]*100
example UCUM units%
The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org)
example unit%

Associated Observations

LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations.

History/Usage

first released
last updated2.52
last change typeMIN  - change to field other than name

Related Names

2D US
Calc
Calculation
CARD.US
Cardiac
Cardio
Cardiology
Echography
EF
Frac
Fract
Fractionation
Fractions
Heart Disease
Hrt
Hrt ventr
L
LT
LV
LVEF
Percent
Point in time
QNT
Quan
Quant
Quantitative
Random
Sonogram
Sonograph
Sonography
ULS
Ultrasound
Ultrasound - 2-dimensional
US.2D+mod Simpson
Ventricular
Volfr
Volume fraction

Copyright © 2024 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2024, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.

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