64层螺旋CT与超声心动图对左心室功能定量评价的对比研究

发布时间：2019-06-06 07:03

【摘要】：目的应用64层螺旋CT(MSCT)定量评价左心室功能,以M型超声心动图(UCG)为对照,探讨MSCT与M型UCG对明确存在室壁运动异常或室壁瘤(A组)及不存在(B组)室壁运动异常及室壁瘤患者的左心室功能定量评价的相关性以及一致性。 方法52例拟诊冠心病的住院患者,行CT冠状动脉血管造影(CT coronary artery angiography, CTCA)检查并前后72h内行UCG检查。据UCG及CTCA后处理电影模式综合判断是否存在室壁运动异常或室壁瘤并分为A、B两组,A、B组两种测量方法分别获得左心功能指标：左室收缩末期容积(left ventricular end-systolic volume, LVESV),左室舒张末期容积(leftventricular end-diastolic volume, LVEDV),左室射血分数(left ventricular ejection fraction, LVEF),搏出量(stroke volume, SV),各组分别对MSCT及M型UCG所得的左心室心功能各参数进行配对t检验、pearson相关分析,并采用Bland-Altman作图法进一步评价MSCT与M型UCG两种测量方法的一致性。 结果存在室壁运动异常或室壁瘤组(A组)MSCT所测得LVEF、SV、LVESV、LVEDV值分别为44.04±9.25%,72.41±12.04ml,96.43±31.61ml,168.84±33.00ml,M型UCG所得LVEF、SV、LVESV、LVEDV值分别为58.87±11.22%,83.28±23.35ml,61.04±26.95ml,144.33±42.85ml,A组MSCT和M型UCG得到的心功能指标LVEF、LVESV、LVEDV差异有统计学意义,且相关性较低(r=0.208～0.542)；不存在室壁运动异常或室壁瘤组(B组)MSCT所测得LVEF、SV、LVESV、LVEDV值分别为60.77±9.60%,68.89±16.59ml,45.52±18.14ml,114.78±25.20ml,M型UCG所得LVEF、SV、LVESV、LVEDV值分别为61.49±11.30%,70.65±17.65ml,44.72±22.03ml,115.36±26.01ml;B组MSCT和M型UCG得到的心功能指标LVEF、LVESV、LVEDV、SV差异无统计学意义,且相关性较高(r=0.874～0.941)；Bland-Altman分析进一步显示不存在室壁运动异常组(B组)MSCT与M型UCG所得的心功能指标一致性良好。 结论MSCT用于左心室功能评价时准确、可靠,在不存在室壁运动异常及室壁瘤时与M型超声心动图所测得左心功能指标有较高的相关性且一致性良好,可相互替代。
[Abstract]:Objective to quantitatively evaluate left ventricular function by 64-slice spiral CT (MSCT), with M-mode echocardiography (UCG) as control. To investigate the correlation and consistency between MSCT and M-type UCG in quantitative evaluation of left ventricular function in patients with abnormal wall motion or ventricular aneurysm (group A) and without abnormal wall motion (group B). Methods 52 inpatients with coronary heart disease were examined by CT coronary angiography (CT coronary artery angiography, CTCA) and UCG within 72 hours before and after coronary artery disease. According to the post-processing film mode of UCG and CTCA, the patients with abnormal wall motion or ventricular aneurysm were divided into two groups: group A, group B and group B, respectively. The left ventricular function index was obtained by two methods: left ventricular end-systolic volume (left ventricular end-systolic volume,. LVESV), left ventricular end-diastolic volume (leftventricular end-diastolic volume, LVEDV), left ventricular ejection fraction (leftventricular ejection fraction, LVEF), pulsatile volume) the parameters of left ventricular cardiac function obtained by MSCT and M-type UCG were tested by pairing t test in each group. Pearson correlation analysis and Bland-Altman mapping method were used to further evaluate the consistency between MSCT and M-type UCG. Results the LVEDV values of LVEF,SV,LVESV, measured by MSCT in group A (group A) were 44.04 卤9.25%, 72.41 卤12.04ml, 96.43 卤31.61ml, 16884 卤33.00ml, respectively. The LVEF,SV,LVESV, obtained by M-type UCG was 44.04 卤9.25%, 72.41 卤12.04ml, 96.43 卤31.61ml, 16884 卤33.00ml and M-type LVEDV, respectively. The values of LVEDV were 58.87 卤11.22%, 83.28 卤23.35ml, 61.04 卤26.95ml, 144.33 卤42.85ml, respectively. There was significant difference in LVEF,LVESV,LVEDV between MSCT and M-type UCG in group A, and the correlation was low (r 鈮，

本文编号：2494158