摘要
目的分析对比动态心电图、MSCT心肌灌注成像在诊断冠心病心肌缺血中的应用价值。方法回顾性收集2017年10月至2019年10月在本院收治的79例冠心病患者的临床资料,运动负荷/静息MPI证实存在心肌缺血,患者均并行动态心电图、MSCT检查。并以运动负荷/静息MPI诊断为基准,比较不同检查对冠心病心肌缺血诊断灵敏度、特异度、准确度。结果经运动负荷/静息MPI证实,79例患者存在心肌缺血。动态心电图检出55例心肌缺血,其中33例为ST段呈水平型压低,15例ST段呈下斜型压低,7例ST段呈上斜型压低。MSCT检查:68例患者存在心肌缺血,其中有74个收缩其可见心肌灌注异常,其中有47个为可逆性灌注填充,有20个为部分可逆性灌注填充,7个表现为固定性灌注缺损;MSCT检查.在灵敏度、准确度上明显高于动态心电图检查(P<005),在特异度.上稍高于动态心电图检查但两者见比较无差异(P>005)。结论MSCT心肌灌注成像在诊断冠心病心肌缺血中灵敏度、准确度高,优于动态心电图检查,可为临床诊断及治疗提供参考。
Objective To analyze and compare the application value between dynamic electrocardiogram and Ms CT myocardial perfusion imaging in the diagnosis of myocardial ischemia in coronary heart disease. Methods The clinical data of 79 patients diagnosed with coronary heart disease admitted in our hospital from October 2017 to October 2019 were collected retrospectively. Exercise load/rest MPI confirmed the presence of myocardial ischemia, and the patients were all examined by dynamic electrocardiogram and Ms CT. The diagnosis of exercise load/resting MPI was used as a benchmark to compare the sensitivity, specificity, and accuracy of different tests in the diagnosis of myocardial ischemia in coronary heart disease. Results As confirmed by exercise load/rest MPI, 79 patients had myocardial ischemia. 55 cases of myocardial ischemia were detected by dynamic electrocardiogram, of which 33 cases showed horizontal depression of s T segment, 15 cases showed downward oblique depression, and 7 cases showed upward oblique depression. Ms CT examination showed that 68 patients had myocardial ischemia, of which 74 showed abnormal myocardial perfusion when contracted. In them, 47 showed reversible perfusion filling, 20 showed partially reversible perfusion filling, 7 showed fixed perfusion defects. The sensitivity, The sensitivity and accuracy of Ms CT examination were significantly higher than those of dynamic electrocardiogram examination(P<0.05), and the specificity was slightly higher than that of dynamic electrocardiogram examination but there was no difference between them(P>0.05). Conclusion Ms CT myocardial perfusion imaging has high sensitivity and accuracy in the diagnosis of myocardial ischemia in coronary heart disease, which is superior to dynamic electrocardiogram examination, and can provide a reference for clinical diagnosis and treatment.
作者
刘涛
柳梅
康美丽
石丽媛
LIU Tao;LIU Mei;KANG Mei-li;SHI Li-yuan(Department of Cardiology,Hebei Petroleum Central Hospital,Langfang 065000,Hebei Province,China;Department of Nephrology,Hebei Petroleum Central Hospital,Langfang 065000,Hebei Province,China)
出处
《中国CT和MRI杂志》
2022年第7期78-80,共3页
Chinese Journal of CT and MRI
关键词
动态心电图
MSCT心肌灌注成像
冠心病
心肌缺血
应用价值
Dynamic Electrocardiogram
MSCT Myocardial Perfusion Imaging
Coronary Heart Disease
Myocardial Ischemia
Application Value
