128层CT与MRI评价左心室功能与结构的对比研究  

The comparative study of MRI and 128-slice spiral CT in assessment of left ventricular function and structure

作　　者：顾敏[1] 李康[1] 马千红[1] 杨庆军[2] 

机构地区：[1]重庆市中山医院放射科,400013 [2]重庆市中山医院心血管外科,400013

出　　处：《重庆医学》2013年第23期2718-2721,共4页Chongqing medicine

基　　金：重庆市卫生局医学科研计划项目(2012-2-187)

摘　　要：目的以心脏磁共振成像(MRI)为参考标准,应用128层螺旋CT(128SCT)评价左心室功能与结构,探讨两种方法的相关性和128SCT在冠心病左室功能及结构评价中的应用价值。方法对45例临床拟诊冠心病患者同期行心脏128SCT和MRI检查,分别测量左室舒张末期容积(EDV)、收缩末期容积(ESV)、射血分数(EF)、每搏输出量(SV)、舒张末期心肌质量(MM)、舒张末期左室内径(EDD)、收缩末期左室内径(ESD)、前室间隔厚度(ASWT)及左室后壁厚度(PLWT)。结果 128SCT和MRI所测定的左室功能(EDV、ESV、EF、SV、MM)与结构(EDD、ESD、ASWT、PLWT)参数具有高度相关性(r值分别为0.74～0.94、0.92～0.99,P>0.05),两种方法比较差异无统计学意义。结论 128SCT在评价左室功能及结构方面方便、准确、可靠,具有广泛的临床应用价值。Objective To investigate the clinical value of 128-slice spiral CT（128SCT）in assessing left ventricular function and structure,the results were compared with MRI as the reference standard.Methods A total of 45patients suspected coronary artery disease（CAD）,underwent 128SCT and MRI heart study.The data sets of 128SCT and MRI were reconstructed at both end-diastole and end-systole to measure left ventricular end-diastolic volume（EDV）,end-systolic volume（ESV）,ejection fraction（EF）,stroke volume（SV）,myocardial mass at end-diastole（MM）,the end-diastolic diameter（EDD）,the end-systolic diameter（ESD）,anterior septal wall thickness（ASWT）,and posterior left-ventricular wall thickness（PLWT）.The results from 128SCT were compared with MRI.Results There was no significant difference among the measurements for 128SCT and MRI of the left ventricular function and structure parameters.A strong correlation between 128SCT and MRI（r=0.74～0.94、0.92～0.99,P0.05）was found for all parameters.Conclusion 128SCT angiography of the heart is noninvasive assessment of the coronary tree,whereas the analysis of left ventricular parameters provides additional information of cardiac function and structure without further radiation exposure or scan time.

关 键 词：体层摄影术 X线计算机 磁共振成像 心室功能 左 

分 类 号：R445.2[医药卫生—影像医学与核医学] R816.2[医药卫生—诊断学]