Evaluation of left ventricular function in children with dilated cardiomyopathy using quantitative tissue velocity imaging(QTVI)

XIONG Fu

doi:10.13406/j.cnki.cyxb.2008.05.015

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Evaluation of left ventricular function in children with dilated cardiomyopathy using quantitative tissue velocity imaging(QTVI)

更新时间：2024-01-17

- Evaluation of left ventricular function in children with dilated cardiomyopathy using quantitative tissue velocity imaging(QTVI)
- Journal of Chongqing Medical University Issue 5, Pages: 622-625(2008)
- 作者机构：
  
  1. 重庆医科大学附属儿童医院心内科
  2. 重庆医科大学附属儿童医院心内科,重庆,400014
- 作者简介：
- 基金信息：
- DOI：10.13406/j.cnki.cyxb.2008.05.015
  CLC： R725.4
- Published：2008，
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[1]熊复,余更生,白永虹,计晓娟,田杰,钱永如.利用组织速度成像评价儿童扩张型心肌病左心功能的临床探讨[J].重庆医科大学学报,2008(05):622-625+640.

XIONG Fu. Evaluation of left ventricular function in children with dilated cardiomyopathy using quantitative tissue velocity imaging(QTVI). [J]. Journal of Chongqing Medical University (5):622-625(2008)
[1]熊复,余更生,白永虹,计晓娟,田杰,钱永如.利用组织速度成像评价儿童扩张型心肌病左心功能的临床探讨[J].重庆医科大学学报,2008(05):622-625+640. DOI： 10.13406/j.cnki.cyxb.2008.05.015.

XIONG Fu. Evaluation of left ventricular function in children with dilated cardiomyopathy using quantitative tissue velocity imaging(QTVI). [J]. Journal of Chongqing Medical University (5):622-625(2008) DOI： 10.13406/j.cnki.cyxb.2008.05.015.

摘要

目的:探讨定量组织速度成像（Quantitative tissue velocity imaging

QTVI）技术在儿童扩张型心肌病（Dilated cardiomy- opathy

DCM）左心收缩功能评价中的应用。方法:DCM患儿15例

分为DCM A组（轻度心衰）和DCM B组（中、重度心衰）

健康儿童12例为对照组。同步获取心尖四腔、左室两腔和左室长轴切面的动态三平面组织速度图

分析各组左室基底段和中间段心肌速度曲线。结果:（1）DCM A组、B组左室各节段射血期峰值收缩速度（Peak systolic velocity

Vs）较对照组普遍降低

尤以B组降低更显著（P<0.05）

而A组部分节段无显著降低（P>0.05）。（2）DCM组共42个节段收缩后收缩（Post-systolic short- ening

PSS）速度高于射血期Vs

其中B组30个（71.43%）

A组12个（28.57%）。结合应变分析

其中21个节段（50.00%）为等容舒张期主动收缩

11个节段（26.19%）为矛盾运动。结论:利用QTVI技术能准确评价儿童DCM患者左心收缩功能。

Abstract

Objective:To evaluate the application of Quantitative tissue velocity imaging(QTVI) in assessing the left ventricular (LV) systolic function in Children with dilated cardiomyopathy(DCM).Methods:Fifteen consecutive children with DCM were included in the present study

who were divided into group A(with light heart failure) and group B(with moderate and severe heart failure).Twelve children without any cardiac diseases were as controls.The dynamic tri-plane QTVI images of apical four-chamber

LV two-chamber and LV long-axis views were acquired simultaneously and the myocardial velocity curves in basal and middle segments were analyzed.Results:(1)The peak systolic velocity (Vs)redueed generally in group A and B compared with that in controls

especially in group B(P<0.05).But the Vs did not reduce remarkably in some segments of group A(P>0.05).(2)There were forty-two segments with the velocity of postsystolie shortening(PSS) more than that of the systole in DCM group

among which thirty segments(71.43%)were from group B

and twelve segrnents(28.57%)from group A. Analyzed with strain

twenty-one segments (50.00%)were actively shortened and eleven segments (26.19%)were paradoxical motion.Conclusion:QTVI can assess LV systolic function accurately in Children with DCM.

关键词

定量组织速度成像扩张型心肌病左心功能儿童收缩后收缩

Keywords

Quantitative tissue velocity imagingdilated cardiomyopathyleft ventricular functionchildrenPostsystolic shortening

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