LOINC
Version 2.67

12023-8Resistivity index US.dopplerActive

Term Description

For use when the System is Patient or when the System is Fetus or Other but the context is supplied by DICOM Supplement 23-Structured Reporting, Observation Subject context Module (C.6.12).
Source: Regenstrief LOINC

Part Description

LP6617-7   US.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. [PMID: 16534017] Source: Regenstrief LOINC, PMID: 16534017

Fully-Specified Name

Component
Resistivity index
Property
VelRto
Time
Pt
System
^Patient
Scale
Qn
Method
US.doppler

Additional Names

Short Name
RI DOP

Basic Attributes

Class
OB.US
Type
Clinical
First Released
Version 1.0j-a
Last Updated
Version 2.48
Order vs. Observation
Observation

Formula (Readable)

Resistivity Index = (blood flow.systolic.max - blood flow.diastolic.min) / blood flow.systolic.max

Language Variants Get Info

zh-CNChinese (CHINA)
阻力指数:速度比率:时间点:^患者:定量型:超声.多普勒
it-ITItalian (ITALY)
Resistività, indice:VelRto:Pt:^Paziente:Qn:Eco.doppler
pt-BRPortuguese (BRAZIL)
Índice de resistência:VelRto:Pt:^Paciente:Qn:US.doppler
es-ARSpanish (ARGENTINA)
índice de resistividad:relación de velocidad:punto en el tiempo:^paciente:cuantitativo:doppler.calculado

Example Units

Unit Source
{index} Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=12023-8