摘要
目的探讨左心房二维斑点追踪应变率联合二尖瓣多普勒参数对左室舒张功能障碍的阶梯式诊断价值。方法入组237例,共分成4组,回顾性分析左室舒张功能障碍患者的左心房二维斑点追踪应变率参数左心室收缩期左心房峰值应变率(LASRs)、左心室舒张早期左心房峰值应变率(LASRe)、左心房收缩期左心房峰值应变率(LASRa)和二尖瓣多普勒参数(E/A比值,E/e间隔侧的二尖瓣心肌运动速度比值,等容舒张期(IVRT),E峰减速时间(DT),e值(cm/s)e/a比值)。A组、B组及C组多普勒参数组间数据比较采用单因素方差分析。C组与D组多普勒参数采用独立样本t检验。左心房应变率参数两两比较采用独立本样t检验。结果E/A比值、E峰减速时间DT、等容舒张期IVRT、二尖瓣环运动速度e值在4组间差异有统计学意义(P<0.05)。E/e比值和e/a比值在A组、B组和C组之间差异具有统计学意义(P<0.05)。LASRs和LASRe在4组间比较差异有统计学意义(P<0.05)。LASRa在A组、B组及C组之间比较差异有统计学意义(P<0.05)。结论左心房二维斑点追踪应变率联合二尖瓣多普勒参数可以用于左室舒张功能障碍的阶梯式诊断。
Objective To investigate the diagnostic value of left atrial two-dimensional speckle tracking strain rate combined with mitral valve Doppler parameters in step diagnosis of left ventricular diastolic dysfunction.Methods A total of 237 patients were divided into 4 groups.The left atrial two-dimensional speckle tracking strain rate parameters(LASRs,LASRe,LASRa)and mitral valve Doppler parameters[E/A ratio,E/e ratio,IVRT at isovolumic diastolic phase,DT at peak E slowdown,E value(cm/s)e/a ratio]were retrospectively analyzed in patients with left ventricular diastolic dysfunction.Comparison of Doppler parameters among groups A,B and C was performed by one-way analysis of variance.?Independent sample t-test was used for Doppler parameters in group C and group D.The pairwise comparison of left atrial strain rate parameters was also performed by independent sample t-test.Results The E/A ratio,DT of peak deceleration time,IVRT of isovolumic diastolic phase,and E of mitral ring motion were significantly different among the four groups was statistically significant(P<0.05).E/e ratio and e/a ratio were significantly different among groups A,B and C(P<0.05).LASRs and LASRe were significantly different among the four groups and there was statistical significance(P<0.05).LASRa was significantly different among group A,B and C and there was statistical significance(P<0.05).Conclusion Left atrial Two-dimensional speckle tracking strain rate combined with mitral valve Doppler parameters can be used in the stepped diagnosis of left ventricular diastolic dysfunction.
作者
林燕华
林友国
Lin Yanhua;Lin Youguo(Department of Traditional Chinese Medicine Hospital of Pingtan Comprehensive Experimental Zone,Fujian 350400,China;不详)
出处
《实用医学影像杂志》
2024年第6期458-462,共5页
Journal of Practical Medical Imaging
关键词
左室舒张功能障碍
二维斑点追踪应变率
多普勒参数
阶梯式诊断
Left ventricular diastolic dysfunction
Two-dimensional speckle tracking strain rate
Doppler parameter
Step diagnosis
