HR-LGE显像对冠状动脉非阻塞型心肌梗死的诊断价值研究

Diagnostic value of HR-LGE imaging in coronary artery non-blocking myocardial infarction

目的 探讨高分辨率晚期钆增强显像(HR-LGE)对冠状动脉非阻塞型心肌梗死(MINOCA)的诊断价值。方法 选取2017年3月~2018年3月在我院治疗的MINOCA患者98例,均在入院1周内行磁共振HR-LGE显像检查,根据局部心肌是否出现高信号“亮区”,将MINOCA患者分为HR-LGE阳性组(84例)和HR-LGE阴性组(14例)。结果 与HR-LGE阴性组相比,HR-LGE阳性组患者心肌梗死面积、管径≤50检出率升高,且LVESV、LVEDV、左回旋支、左前旋支、右冠状动脉参数较高,差异有统计学意义(P<0.05)。与HR-LGE阴性组相比,HR-LGE阳性组患者LVEF参数较低,差异有统计学意义(P<0.05)。与HR-LGE阴性组相比,HR-LGE阳性组对HR-LGE显像敏感度、特异度、准确率较高,差异有统计学意义(P<0.05)。结论 HR-LGE显像在MINOCA中的诊断价值较为理想,可用于MINOCA的临床诊断。

Objective To study the diagnostic value of high-resolution advanced gadolinium-enhanced imaging(HR-LGE) in coronary non-blocking myocardial infarction. Methods This paper selected 98 patients with coronary artery non-blocking myocardial infarction treated in our hospital from March 2017 to March 2018. According to the presence of cardiac magnetic resonance imaging HR-LGE, patients with coronary artery non-blocking myocardial infarction were divided into HR-LGE positive group(84 cases) and HR-LGE negative group(14 cases). Results The detection rate of myocardial infarction area, diameter ≤50 in HR-LGE positive group was higher than that in the negative group, and the parameters of LVESV, LVEDV, left circumflex branch, left anterior circumflex branch and right coronary artery were higher(P<0.05). The LVEF parameters of HR-LGE positive group were lower than those of HR-LGE negative group(P<0.05). The sensitivity, specificity and accuracy of HR-LGE imaging in HR-LGE positive group were higher than those in HR-LGE negative group(P<0.05). Conclusion HR-LGE imaging is of good value in the diagnosis of coronary non-blocking myocardial infarction and can be used in the clinical diagnosis of coronary non-blocking myocardial infarction.