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首页> 外文期刊>The American Journal of Cardiology >Usefulness of magnetocardiogram to detect unstable angina pectoris and non-ST elevation myocardial infarction.
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Usefulness of magnetocardiogram to detect unstable angina pectoris and non-ST elevation myocardial infarction.

机译：心电图对检测不稳定型心绞痛和非ST段抬高型心肌梗死的有用性。

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摘要

Electrophysiologic information as well as anatomic information to detect coronary artery disease is important for accurate diagnosis. A diagnostic tool that can detect patients with unstable angina pectoris (UAP) or non-ST elevation myocardial infarction (NSTEMI) with severe stenosis would be beneficial for patients and clinicians. Magnetocardiography has been recognized as a noncontact, noninvasive, fast tool to detect ischemic coronary artery disease and provide direct electrophysiologic information from the heart. In this study, 10 magnetocardiographic (MCG) parameters from 4 groups, including 185 young controls, 19 age-matched controls (AMCs), 110 patients with UAP, and 83 patients with NSTEMIs, were analyzed. A 64-channel MCG system in a magnetically shielded room was used. All 10 parameters showed significant differences (p <0.001) between controls and patients with NSTEMIs, and 6 parameters showed significant differences (p <0.01) between AMCs and patients with UAP. MCG parameters significantly increased when ischemic heart conditions worsened. Of the 10 parameters, the magnetic field map was among the easiest ways to detect the severity of coronary artery disease. Abnormal magnetic field maps were observed frequently with worsening ischemic coronary artery disease (70% of patients with UAP and 92.5% of those with NSTEMIs had abnormal maps). The combination of the binary boundaries of the 10 parameters had 96.4% sensitivity and 85% specificity to detect NSTEMI. In conclusion, the MCG parameters and magnetic field maps may detect UAP and NSTEMI easily when they are considered together.
机译：检测冠状动脉疾病的电生理信息和解剖学信息对于准确诊断很重要。一种可以检测出具有严重狭窄的不稳定型心绞痛（UAP）或非ST段抬高型心肌梗死（NSTEMI）患者的诊断工具，对患者和临床医生将是有益的。心磁图已被认为是一种非接触，无创，快速的工具，可检测缺血性冠状动脉疾病并提供来自心脏的直接电生理信息。在这项研究中，分析了4组的10个心电图（MCG）参数，包括185个年轻对照，19个年龄匹配对照（AMC），110例UAP患者和83例NSTEMIs。在磁屏蔽室中使用了64通道MCG系统。对照组和NSTEMI患者之间的所有10个参数均显示出显着差异（p <0.001），AMCs和UAP患者之间的6个参数均显示出显着差异（p <0.01）。当缺血性心脏病恶化时，MCG参数显着增加。在这10个参数中，磁场图是检测冠状动脉疾病严重程度的最简单方法之一。经常观察到异常的磁场图，伴有缺血性冠状动脉疾病的恶化（UAP患者中的70％和NSTEMI患者中的92.5％的患者有异常图）。 10个参数的二进制边界的组合具有96.4％的灵敏度和85％的特异性来检测NSTEMI。总之，将MCG参数和磁场图一起考虑可以轻松检测UAP和NSTEMI。

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