Version 2.78

Part Descriptions

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

LP203323-3   Tissue velocity.A wave.max
The A wave represents the flow of blood through the mitral or tricuspid valve into the ventricle (ventricular filling) during atrial contraction. During the A wave, upper-case A represents the blood flow velocity (LOINC component: blood flow velocity.A wave) and lower-case a prime (a') represents the annular tissue velocity (LOINC component: tissue velocity.A wave). The A and a' waves follow the E (LOINC component: blood flow velocity.E wave) and e' waves (LOINC component: tissue velocity.E wave), which represent ventricular filling during early diastole, before the start of atrial contraction. PMID: 20451803 Source: DICOM, PMID: 20451803

Fully-Specified Name

Component
Tissue velocity.A wave.max
Property
Vel
Time
Pt
System
Mitral valve.annulus.medial
Scale
Qn
Method
US.tissue doppler

Additional Names

Short Name
MV med ann a-prime Vmax TDI

Basic Attributes

Class
CARD.US
Type
Clinical
First Released
Version 2.56
Last Updated
Version 2.71
Order vs. Observation
Both

Language Variants Get Info

Tag Language Translation
es-MX Spanish (Mexico) Velocidad tisular Onda A máx.:Vel:Punto temporal:Válvula mitral.annulus.medial:Cuantitativo:US.tissue doppler
it-IT Italian (Italy) Velocità del tessuto.onda A.massimo:Vel:Pt:Annulus valvola mitralica.mediale:Qn:Ecografia.doppler tissutale
Synonyms: Anulus di valvola mitrale Eco Ecografia cardiaca Massimo Punto nel tempo (episodio) Velocità (distanza/tempo)
zh-CN Chinese (China) 组织速度.A 波.最大值:速度:时间点:二尖瓣.环.中部:定量型:超声.组织多普勒
Synonyms: A 型 A 波最大值 二尖瓣（僧帽瓣）.环（环带、环部、环面）.中部（中间） 二尖瓣（僧帽瓣）.环带;二尖瓣.环部;二尖瓣.环面;二尖瓣环;二尖瓣环带;二尖瓣环面 僧帽瓣 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 心脏病学 心脏病学.超声;心脏超声 时刻;随机;随意;瞬间 最大;极大值 组织速度（组织速率）.A 波.最大值（极大值、极大、最大、最高值、最高、峰值、高峰） 组织速率 超声检查方法;超声检查法;超声波;超声波检查方法;超声波检查法 速度(距离/时间);速率;速率(距离/时间)

Example Units

Unit Source
cm/s Example UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=81396-4