81894-8LOINC 2.82
Liver ultrasound attenuation by transient elastography
US.TE Liver attenuation
Definition
- A measure of the attenuation of the ultrasound signal (loss of energy) as it travels through and returns from the liver at 3.5 MHz, often reported simultaneously with liver stiffness [LOINC:77615-3]. Based on the principle that ultrasound propagation is affected by tissue fat content, the ultrasound attenuation measurement, referred to as Controlled Attenuation Parameter (CAP), is a measure of liver fat content (steatosis) and expressed in dB/m. Increasing steatosis is associated with higher levels of signal attenuation. [PMID: 22404722]
Component
- Ultrasound attenuation
Specimen / system
- Liver
Class
- RAD
Property
- Pres
Scale
- Qn
Method
- US.transient elastography
Related names
- CAP; Controlled Attenuation Parameter; Echography; Fibroscan; Hepar; Hepatic; Hepatology; Imaging; Liver; Point in time; Pressure; QNT; Quan; Quant; Quantitative; RADIOLOGY; Random; Sonogram; Sonograph; Sonography; Steatosis, Liver; ULS; Ultrasound; US.TE
Index terms
- CAP
- Controlled Attenuation Parameter
- Echography
- Fibroscan
- Hepar
- Hepatic
- Hepatology
- Imaging
- Liver
- Point in time
- Pressure
- QNT
- Quan
- Quant
- Quantitative
- RADIOLOGY
- Random
- Sonogram
- Sonograph
- Sonography
- Steatosis, Liver
- ULS
- Ultrasound
- US.TE