CAJ | 학술논문

目的应用二维斑点追踪显像(2D-STI)评价急性肺栓塞(APE)患者右心室局部心肌收缩功能.方法 APE患者40例,正常对照组40例.获取心尖四腔观,记录常规二维超声测值,2D-STI测量右室游离壁及室间隔基底段、中间段、心尖段纵向收缩峰值速度(VL)、纵向收缩峰值应变(SL)、纵向收缩峰值应变率(SRL),对结果进行组间及组内比较.结果 APE患者右室壁各节段VL及SL(游离壁基底段SL除外)均较对照组显著降低,差异有统计学意义(P＜0.05);右室壁各节段SRL与对照组相比,差异无统计学意义(P＞0.05).对照组及APE患者室间隔各节段VL均较右室游离壁相应节段显著降低,差异有统计学意义(P＜0.05).结论 APE患者右室局部心肌收缩功能降低,2D-STI是评价APE患者右心室局部心肌功能改变的一种新方法.
목적 응용이유반점추종현상(2D-STI)평개급성폐전새(APE)환자우심실국부심기수축공능.방법 APE환자40례,정상대조조40례.획취심첨사강관,기록상규이유초성측치,2D-STI측량우실유리벽급실간격기저단、중간단、심첨단종향수축봉치속도(VL)、종향수축봉치응변(SL)、종향수축봉치응변솔(SRL),대결과진행조간급조내비교.결과 APE환자우실벽각절단VL급SL(유리벽기저단SL제외)균교대조조현저강저,차이유통계학의의(P＜0.05);우실벽각절단SRL여대조조상비,차이무통계학의의(P＞0.05).대조조급APE환자실간격각절단VL균교우실유리벽상응절단현저강저,차이유통계학의의(P＜0.05).결론 APE환자우실국부심기수축공능강저,2D-STI시평개APE환자우심실국부심기공능개변적일충신방법.
Objective To assess right ventricular (RV) regional myocardial systolic function in patients with acute pulmonary embolism (APE) by two-dimensional speckle tracking imaging (2D-STI).Methods Forty patients with APE and 40 controls were enrolled in the study.Conventional echocardiographic parameters were recorded.Longitudinal peak systolic velocity (VL),longitudinal peak systolic strain (SL),longitudinal peak systolic strain rate (SRL) were measured in RV free wall and interventricular septum (IVS) for basal,mid and apical segment by 2D-STI from the apical four-chamber view.Results Compared with controls,VL and SL of RV for all segments were significantly impaired in patients with APE (except SL of RV free wall for basal segment) (P ＜0.05).SRL of RV for all segments showed no significant difference between controls and APE groups (P ＞0.05).VL of IVS for each segment was significantly lower than that of RV free wall in controls and APE groups (P ＜0.05).Conclusions The patients with APE have reduced regional myocardial systolic function.2D-STI is a new method to evaluate RV regional myocardial function in patients with APE.