77615-3
LOINC Code
| LOINC code | 77615-3 | ||
|---|---|---|---|
| name | |||
| description | Liver stiffness is measured in a non-invasive manner by vibration-controlled transient elastography (VCTE). VCTE uses an ultrasound transducer mounted on the axis of a mechanical vibrator. The vibrator induces a 50 Hz shear wave through the liver and ultrasounds are used to track the propagation of the shear wave and measure its speed of propagation into the liver. The speed is converted into stiffness using Hooke's law. Stiffness measurements are expressed in kPa. Clinical interpretation of liver stiffness values should always be in the hands of an expert clinician and should be made with full knowledge of patient demographics, disease etiology and essential laboratory parameters. | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Liver stiffness | ||
| property | Pres = Pressure | ||
| 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 | Abdomen>Liver | ||
| 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.transient elastography | ||
Additional Names | |||
| short name | Abd; Abdo; Abdomen+; Abdominal; Echography; Fibroscan; Hepar; Hepatic; Imaging; Point in time; Pressure; QNT; Quan; Quant; Quantitative; RADIOLOGY; Random; Sonogram; Sonograph; Sonography; ULS; Ultrasound; US.TE | ||
Basic Attributes | |||
| class | RAD | ||
| type | 2 Clinical | ||
| order vs. observation | US.TE Liver sti | ||
| example UCUM units | kpa 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) | ||
Member of these Groups | |||
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History/Usage | |||
| first released | |||
| last updated | 2.73 | ||
| last change type | MIN - change to field other than name | ||
| change reason | kPa | ||
Related Names | |||
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