Version 2.78

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
Cerebral artery middle
Scale
Qn
Method
US.doppler

Additional Names

Short Name
Cerebral a Middle 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

Tag Language Translation
es-AR Spanish (Argentina) índice de resistividad:relación de velocidad:punto en el tiempo:arteria cerebral media:cuantitativo:doppler.calculado
es-MX Spanish (Mexico) Índice de resistividad:VelRto:Punto temporal:Media de la arteria cerebral:Cuantitativo:US.doppler
it-IT Italian (Italy) Resistività, indice:VelRto:Pt:Arteria cerebrale media:Qn:Eco.doppler
Synonyms: Eco Ecografia ostetrica Ecografia.doppler Indice di resistività Punto nel tempo (episodio) Rapporto di velocità
pt-BR Portuguese (Brazil) Índice de resistência:VelRto:Pt:Artéria Cerebral média:Qn:US.doppler
Synonyms: ; RI; Velocity ratio; Point in time; Random; Cerebral a Middle; Art; Quantitative; QNT; Quant; Quan; DOP; DUPLEX; Ultrasound; ULS; Sonogram; Sonography; Sonograph; Echography; OBSTERICAL.ULTRASOUND; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics
zh-CN Chinese (China) 阻力指数:速度比率:时间点:大脑中动脉:定量型:超声.多普勒
Synonyms: Cereb 产科 产科.超声;产科.超声.印象与测量指标;产科学.超声;产科学.超声.印象与测量指标;产科学检查与测量指标.超声.印象与测量指标;产科学超声印象与测量指标 产科学 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 大脑（Cerebral） 心脏超声.多普勒 时刻;随机;随意;瞬间 术语"cerebral"指的是主要由中枢半球（大脑皮质和基底神经节）组成的那部分脑结构 血流阻力指数;Resistivity index;RI 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 速度比

Example Units

Unit Source
{index} Example UCUM Units

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CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=12014-7