摘要
目的探讨定量组织速度成像(QTVI)和应变率成像(SRI)技术对早期病毒性心肌炎患者左室收缩功能的诊断价值。方法应用超声心动图分别检测30例心肌炎患者和40例正常健康者心尖四腔切面和心尖两腔切面上的后间隔、侧壁、前壁和下壁的定量组织速度(Vs)和应变率(SRs)值,并测量和计算左室舒张末期内径(LVEDD)、射血分数(EF)、每搏量(SV)、每分输出量(CO)和心脏指数(CI)值。结果心肌炎组显示QTVI和SRI的Vs与SRs在部分节段较正常对照组减低,差异有统计学意义(P<0.05),其中SRs又较Vs敏感,而LVEDd、EF、SV、CO及CI值,心肌炎组与对照组间比较差异无统计学意义(P>0.05)。结论病毒性心肌炎患者早期即可出现左室局部心肌收缩功能减退;QTVI和SRI可早期评价病毒性心肌炎患者的左室收缩功能。
Objective To investigate the diagnostic value of quantitive tissue velocity imaging（QTVI） and strain rate imaging （SRI） in evaluation of left ventricular systolic function in patients with early vires myocarditis. Methods Forty healthy subjects and thirty patients with virus myocarditis were enrolled in the study. The peak systolic velocities （Vs） and SRs from ventricular septal, lateral wall, anterior wall and inferior wall at apical 4 - champer and 2 - champer were detected by echocardiography, and left ventricular end diastolic diameter （LVEDd） ,EF,SV,CO and CI were measured and calculated.Results The Vs and SRs were lower in part of the cardiac segments in patients with virus myocarditis than those in control group （P〈 0.05）, and the SRs was more sensitive than the Vs, while LVEDd, EF, SV, CO and CI had no significant differences between the two groups （ P 〉 0.05 ）. Conclusion Cardiac muscle systolic function of left ventricular partly decreased in the patients with virus myocarditis. QTVI and TVI can evaluate left ventricle systolic function in patients with early vires myocarditis.
出处
《临床超声医学杂志》
2008年第10期662-664,共3页
Journal of Clinical Ultrasound in Medicine
关键词
心肌疾病
心脏功能
左室
定量组织速度成像
应变率
Cardiomyopathies
Cardiac function, left ventricular
Quantitative tissue velocity imaging
Strain rate
