摘要
目的：探讨应用二维斑点追踪技术（2D-STI）的应变、应变率参数评价室间隔缺损（VSD）患儿右心室收缩功能的价值。方法：单纯VSD患儿40例按是否合并肺动脉高压（PH）进行分组：分为VSD无PH组及VSD伴PH组。以30例健康儿童为对照组。测量右室常规参数。应用2D-STI测量右室游离壁的峰值应变，收缩期应变率。结果：VSD伴PH组与VSD无PH组及正常对照组比较：右室的舒张末期面积及收缩末期面积增大，差异有统计学意义。右室各节段及整体的峰值应变、峰值应变率减低，差异有统计学意义（P<0.05），VSD无PH组与正常对照组比较无统计学差异（P>0.05）。结论：VSD合并PH时右室收缩功能减低。二维斑点追踪技术的应变、应变率参数对VSD患儿右心室收缩功能的评价具有重要意义。
Abstract
Objective: To explore the value of two-dimensional speckle tracking imaging(2D-STI) strain in evaluating right ventricular systolic function in children with ventricular septal defect(VSD). Methods: Forty simple VSD patients and thirty healthy children were included in this study. According to VSD, the patients were divided into two groups: VSD without pulmonary hypertension(PH) group and VSD with PH group. Conventional parameters of right ventricular were measured. Right ventricular peak strain, systolic strain rate application with 2D-STI were measured. Results: Compared with control group and VSD without PH group, right ventricular end-diastolic area and end systolic area increased in VSD with PH group(P<0.05), and the difference was statistically significant. Peak strain and peak strain rate in each section and the globle right ventricle decreased, the difference was statistically significant(P<0.05). Compared with control group, it showed no signigicant differences in VSD without PH group(P>0.05). Conclusions: The VSD with PH has decreased right ventricular systolic function. To evaluate right ventricular systolic function of VSD in children, 2D-STI parameters of strain and strain rate are of great significance.
关键词
室间隔缺损 /
超声心动描记术 /
多普勒 /
彩色
Key words
Heart septal defects /
ventricular /
Echocardiography /
Doppler /
color
李 莎;张立敏;马春燕;杨 军.
斑点追踪技术评价室间隔缺损患儿右心室收缩功能[J]. 中国临床医学影像杂志. 2014, 25(10): 712-714
LI Sha;ZHANG Li-min;MA Chun-yan;YANG Jun.
Evaluation of right ventricular systolic function in children with ventricular septal defect by speckle tracking imaging[J]. Journal of China Clinic Medical Imaging. 2014, 25(10): 712-714
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