Version 2.78

Part Description

LP229979-2   Time to end-systole
Left ventricular (LV) systolic dyssynchrony represents variability in the timing of contraction in different LV myocardial segments and is an indicator of LV systolic dysfunction. LV dyssynchrony is evaluated using cardiac gated SPECT and is based on time to end-systole (TES) measurements for each of the 17 LV segments. The TES measures the time from the end of diastole, which is the same for all segments, to the end of systole, which varies across segments depending on the degree of LV dysfunction.
The maximum difference in time to end-systole (MDTES), is the lag between the earliest and the latest end-systole among the 17 LV segments. The standard deviation of time to end-systole (SDTES) is the standard deviation of TES among all of 17 LV segments. Increasing MDTES and SDTES values, which represent increasing LV dyssynchrony, are associated with decreased LV ejection fraction and LV dysfunction. PMID: 22459387
The difference in time to end-systole between the lateral and septal segments (DTES-LS) is also derived from the TES. MDTES, SDTES and DTES-LS are typically expressed as percentages. PMID: 26860109 Source: Regenstrief LOINC, PMID: 22459387

Fully-Specified Name

Component
Time to end-systole
Property
Time
Time
Pt
System
Heart.ventricle.left
Scale
Qn
Method
NM.SPECT

Additional Names

Short Name
TES LV SPECT

Basic Attributes

Class
CARD.PROC
Type
Clinical
First Released
Version 2.58
Last Updated
Version 2.58
Order vs. Observation
Observation

Member of these Panels

LOINC Long Common Name
82654-5 Cardiac nuclear imaging SPECT panel

Language Variants Get Info

Tag Language Translation
es-MX Spanish (Mexico) Es hora de terminar la sístole:Tiempo:Punto temporal:Corazón.ventrículo.izquierdo:Cuantitativo:NM.SPECT
it-IT Italian (Italy) Tempo di fine-sistole:Tempo:Pt:Cuore.ventricolo.sinistro:Qn:NM.SPECT
Synonyms: Procedure cardiache Punto nel tempo (episodio) SPECT Tempo (e.g. secondi) Tempo di fine sistole Ventricolo cardiaco Ventricolo cardiaco Sinistro
zh-CN Chinese (China) 到收缩末期的时间:时间:时间点:心脏.心室.左侧:定量型:NM.SPECT
Synonyms: L LT 到（至）收缩（心脏收缩、心缩）末期的时间;到（至）收缩末期时间;至收缩末期时间;TES 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 向左 向左侧 左 左侧（Left，LT，L） 左向 左心室;心.室.左侧;心.心室.左侧;心脏.室.左侧 左边 心 心.室;心.心室;心室;心脏.室 心脏病学 收缩期末期;心脏收缩期末期;心缩期末期;心脏收缩末期;心缩末期 时刻;随机;随意;瞬间 时间(如秒);时间(如秒数) 核医学方法;核医学设备;nuclear medicine 核医学方法;核医学设备;nuclear medicine;单光子发射计算机断层扫描;single photon emission computed tomography;SPECT;单光子发射计算机断层显像;单光子发射断层扫描;发射计算机断层术;放射性核素扫描;同位素发射计算机辅助断层显像;Emission Computed tomography;ECT

Example Units

Unit Source
ms 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=82621-4