CAJ | 학술논문

目的:探讨组织多普勒成像评价慢性心衰患儿左心室纵轴收缩功能的价值.方法:应用组织多普勒成像测量22例正常儿童和25例慢性心衰患儿左室各节段长轴方向各取样点收缩期的峰值速度(Vs)及峰值位移(Ds).结果:①慢性心衰患儿的Vs、Ds显著减低.②治疗后心内膜弹力纤维增生症(Endocardial fibroelastosis,EFE)患儿各节段的Vs、Ds显著改善.③瓣环的平均Vs和Ds与左室射血分数(Left ventricular ejection fraction,LVEF)相关性最好.结论:组织多普勒成像可定量评价慢性心衰患儿的左心纵轴收缩功能,可更加全面、敏感的评价收缩功能.
목적:탐토조직다보륵성상평개만성심쇠환인좌심실종축수축공능적개치.방법:응용조직다보륵성상측량22례정상인동화25례만성심쇠환인좌실각절단장축방향각취양점수축기적봉치속도(Vs)급봉치위이(Ds).결과:①만성심쇠환인적Vs、Ds현저감저.②치료후심내막탄력섬유증생증(Endocardial fibroelastosis,EFE)환인각절단적Vs、Ds현저개선.③판배적평균Vs화Ds여좌실사혈분수(Left ventricular ejection fraction,LVEF)상관성최호.결론:조직다보륵성상가정량평개만성심쇠환인적좌심종축수축공능,가경가전면、민감적평개수축공능.
Objective:To assess the left ventricular (LV) systolic function of long-axis direction in patients with chronic heart failure using quantitative tissue Doppler imaging.Methods:22 healthy subjects and 25 patients with chronic heart failure were studied by QTVI and TTI, peak velocities of LV regional myocardium during systole (Vs),and peak systolic displacements (Ds) were measured. Results: ①Vs and Ds of LV segments in patients with chronic heart failure were significantly lower than those in healthy subjects.②after 6 months treatment,Vs and Ds of LV segments in patients with endocardial fibroelastosis were significantly recovery.③mean Vs and Ds at the mitral annulus level correlated significantly with LVEF. Conclusion: QTVI and TTI Can assess LV systolic function of long-axis direction in patients with chronic heart failure,can more entirely and sensitive assess the systolic function