77904-1
LOINC Code
| LOINC code | 77904-1 | |
|---|---|---|
| name | ||
| description | The modified Simpson method is commonly used for volume measurements in 2D cardiac imaging. It uses the biplane method of disks, 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 chamber being measured. [PMID: 16376782] | |
| status | ACTIVE | |
Fully-Specified Name | ||
| component | End-systolic volume | |
| property | Vol = Volume | |
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | |
| system | Heart.atrium.left | |
| scale | Qn = 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 | |
| method | US.2D+Calculated by modified Simpson method | |
Additional Names | ||
| short name | 2D US; Atrial; Calc; Calculation; CARD.US; Cardiac; Cardio; Cardiology; Echography; ES vol; Heart Disease; Hrt; L; LA; LT; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; ULS; Ultrasound; Ultrasound - 2-dimensional; | |
Basic Attributes | ||
| class | CARD.US | |
| type | 2 Clinical | |
| order vs. observation | LA ES vol US.2D | |
| example UCUM units | mL 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) | |
History/Usage | ||
| first released | ||
| last updated | 2.52 | |
| last change type | MIN - change to field other than name | |
| change reason | mL | |
Related Names | ||
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