脉冲组织多普勒参数评价心尖肥厚型心肌病右心室功能  

Pulse Wave Tissue Doppler Imaging in Evaluation of Right Ventricular Function in Patients with Apical Hypertrophic Cardiomyopathy

作　　者：马秀丽[1] 牛昊[1] 靳忠民[1] 

机构地区：[1]沈阳市第四人民医院电诊科

出　　处：《中国医学计算机成像杂志》2017年第6期553-556,共4页Chinese Computed Medical Imaging

摘　　要：目的:应用脉冲组织多普勒参数评价心尖肥厚型心肌病患者右心室功能。方法:应用超声心动图脉冲组织多普勒技术检测心尖肥厚型心肌病11例轻度肥厚组、14例重度肥厚组及20例正常对照组的右心室功能,得出常规二维超声测值及组织多普勒参数值,包括等容收缩期加速度(IVA)、等容收缩期峰值流速(IVV)、收缩期峰值流速(Sa)、舒张早期峰值流速(Ea)、舒张晚期峰值流速(Aa)、E/Ea及Tei指数,并进行统计学分析。结果:3组间常规二维超声测值差异无统计学意义。重度肥厚组和轻度肥厚组的右心室脉冲组织多普勒参数中,Aa、E/Ea、IVRT、IVST、IVA及Tei指数与对照组相比差异有统计学意义;其中重度肥厚组与轻度肥厚组比较E/Ea、IVST、IVA及Tei指教差异有统计学意义。Sa及IVV在各组间比较差异均无统计学意义。结论:脉冲组织多普勒等容收缩期参数可早期无创评价心尖肥厚型心肌病患者右心室收缩和舒张功能。Purpose： To assess the impact of apical hypertrophic cardiomyopathy （AHCM） on right ventrieular function by using pulse wave tissue Doppler imaging （PW-TD1）. Methods： Twenty five patients with AHCM, which including severe cardiac hypertrophy group （14 cases） and mild cardiac hypertrophy group （11 cases）, and 20 normal controls were enrolled. Conventional two-dimensional （2D） parameters of right heart and TDI-derived systolic velocities of tricuspid annulus, including isovolumic myocardial acceleration （IVA）, peak myocardial velocity during isovolumic contraction （IW）, peak systolic velocity during ejection period （Sa）, early diastolic peak velocity （Ea）, late diastolic peak velocity （Aa）, E/Ea, and Tei index were measured and statistically analyzed. Results： Conventional 2D parameters of right heart were with no statistical significant difference among 3 groups. Aa, E/Ea, IVRT, IVST, IVA and Tei index were with statistical significant difference between AHCM group and NC group. E/Ea, IVRT, IVST and Tei index were with significant different between two hypertrophy groups. There was no significant difference of Sa and IVV among 3 groups. Conclusion： Isovolumic contraction parameters of PW-TDI can be used to evaluate the right ventricular systolic and diastolic fimction in patients with AHCM early and noninvasively.

关 键 词：肥厚型心肌病 右心室功能 组织多普勒 超声心动图 

分 类 号：R445.1[医药卫生—影像医学与核医学]