Descriptions

Strain is defined as the deformation of a solid object in response to an applied force. Cardiac strain has multiple components, such as circumferential, longitudinal, and radial, and strain can be either perpendicular or parallel (shear) to the force that is applied. Principal strain is the direction of greatest deformation. Strain is calculated as the change in length over a particular time period relative to the original length and is expressed as a percent. Circumferential and longitudinal strain are typically negative, meaning shortening, while radial strain is normally a positive value, indicating lengthening. The strain rate is the change in strain over time and has the unit of measure s^-1. PMID: 21406664 Source: Regenstrief LOINC, PMID: 21406664

During myocardial contraction, as the wall shortens, it also thickens and warrants assessment of all parameters as useful for evaluation of contractile function: positive strain (radial thickening), negative strain (circumferential shortening and longitudinal shortening). Radial mechanics of the heart are reflected by the myocardial shortening and thickening. Parasternal short-axis and apical views from Doppler-determined strain measurements are used for recording radial strains. Radial strain has been found to be altered after longitudinal and circumferential mechanics during the ischemic cascade, occurring only in the presence of flow-limiting stenosis during dobutamine. Radial strains may be significantly decreased after infarction and lowest in the infarcted segments. Radial strains, alone, are not strong predictors of infarct size. Values for radial strain are positive. PMID: 20436854 PMID: 21406664 Source: Regenstrief LOINC

Basic Part Properties

Part Name
Radial strain.max
Part Display Name
Maximum radial strain
Part Type
Component (Describes the core component or analyte measured)
Created On
2016-03-22
Construct for LOINC Short Name
Max radial strain

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=LP208532-4

Language Variants Get Info

TagLanguageTranslation
zh-CNChinese (China)径向应变.最大值
Synonyms: 径向(辐射状)应变(形变、变形、扭曲).最大值(极大值、极大、最大、最高值、最高、峰值、高峰)
it-ITItalian (Italy)Forza radiale.massima
el-GRGreek (Greece)Ακτινική παραμόρφωση.μεγ
Synonyms: Ακτινική παραμόρφωση.μεγ