摘要
【目的】探讨256层螺旋CT（MSCT）与超声心动图评价左心室功能的相关性。【方法】前瞻性收集2012年8月至2013年12月就诊本院并于10日内均行MSCT冠状动脉血管造影（CTA）及经胸超声心动图检查者89例。所有患者按心功能（New York Heart Association，NYHA）分成四个组。比较两种方法检测的左室舒张末期容积（EDV）、左室收缩末期容积（ESV）、左室每搏输出量（SV）和左室射血分数（EF）值，MSCT评价心功能与临床分级的相关性。【结果】各心功能组MSCT与超声心动图所测得的左室功能参数EDV、ESV、SV和EF值比较差异无统计学意义（P〉0．05）；经相关性检验两种方法的测量值高度相关（P〈0．05）；NYHA不同分级的EDV、ESV及EF值比较，差异有统计学意义（P〈0．05），而SV值比较差异无统计学意义。【结论]MSCT冠状动脉CTA评价心功能较为准确、可靠；与超声心动图测量结果比较具有很好的相关性。
[Objective] To explore the relation between MSCT and echocardiography in evaluation of left ventricular function through a comparative analysis of the measurement results of the two methods. [Methods]Eightynine patients who successively accepted MSCT coronary angiography and echocardiography examination within ten days were prospectively collected in this study from August 2012 to December 2013. All cases were divided into four groups according to the New York Heart Association （NYHA） heart function classification method. Ten series of images were reconstructed at each 10% cardiac phase throughout the whole cardiac cycle and were transferred to the post-processing workstation. The left ventricular end-diastolic volume （LVEDV）, left ventricular end-systolic volume （LVESV）, left ventricular stroke volume （LVSV）, and left ventricular ejection fraction （LVEF） were measured. Paired t test and Pearson＇s correlation coefficient analysis were used to determine the correlation and limits of agreement for the LVEDV, LVESV, LVSV and LVEF between MSCT and echocardiography. One-factor ANOVA analysis was performed to determine the correlation between the assessment of the MSCT and NYHA. [Results]The LVEDV, LVESV, LVSV and LVEF measured by MSCT, respectively, in Ⅰ group （82.34±5.31）mL, （25.97±4.31）mL, （56.54±11.38）mL, （67.90±2.05）%,Ⅱ group （80.59±17.92）mL, （29.24± 7.90）mL, （51.35±11.43）mL, （62.70±6.04）%, Ⅲ group （103.68±39.71）mL, （44.79±20.23）mL, （60.09± 21.72） mL, （58.38± 5.18） %, and Ⅳ group （143.71 ± 72.67） mL, （83.94 ± 52.94） mL, （58.44 ±22.59 ） mL, and （45.03±7.95）%. There was no significant difference between assessments of left ventricular function between MSCT and echocardiography（ P〉0.05）. The left ventricular function of MSCT has moderate to high correlation to echocardiography（ r = 0.560 〈 0.971, P 〈 0.05）. There was statistically significant difference in LVEDV, LVESV, LVEF between MSCT and NYH
出处
《医学临床研究》
CAS
2016年第1期73-76,共4页
Journal of Clinical Research
