LOINC
Version 2.66

79924-7Tricuspid valve annulus Tissue velocity.E-wave.max by US.tissue dopplerActive

Component
Tissue velocity.E wave.max
Property
Vel
Time
Pt
System
Tricuspid valve.annulus
Scale
Qn
Method
US.tissue doppler

Additional Names

Short Name
TV ann e-prime Vmax TDI

Part Descriptions

LP191909-3   Tissue velocity.E wave.max
The e prime (e') wave (LOINC component: tissue velocity.E wave) represents the annular tissue velocity of the mitral or tricuspid valve during early diastole, before atrial contraction. The blood flow velocity during early diastole is known as the E wave (LOINC component: blood flow velocity.E wave). The early diastolic velocity ratio (E/e') is an indicator of left ventricular diastolic function. [PMID: 20451803] The ratio of early diastolic tissue velocity to tissue velocity during atrial contraction (e'/a') may also be an indicator of left ventricular function but is less reliable than the E/e' ratio. [PMID: 12411909] Source: DICOM

LP189366-0   US.tissue doppler
Doppler ultrasound detects the shift in frequency of ultrasound signals reflected from moving objects. Conventional Doppler techniques assess the velocity of blood flow by measuring high-frequency, low-amplitude signals from small, fast-moving blood cells. In tissue doppler ultrasound, the same Doppler principles are used to quantify the higher-amplitude, lower-velocity signals of myocardial tissue motion. [PMID: 16534017] Source: Regenstrief LOINC, PMID: 16534017

Basic Attributes

Class
CARD.US.DICOM
Type
Clinical
First Released
Version 2.54
Last Updated
Version 2.54
Order vs. Observation
Observation

Language Variants Get Info

zh-CNChinese (China)
组织速度.E 波.最大值:速度:时间点:三尖瓣.环:定量型:超声.组织多普勒

Example Units

Unit Source
cm/s Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=79924-7