Clinical value of helium-free magnetocardiography in diagnosis of coronary heart disease
10.3760/cma.j.cn114798-20230627-00666
- VernacularTitle:心磁图对于冠心病诊断价值的探讨
- Author:
Feng XU
1
;
Chenchen TU
;
Shuwen YANG
;
Ming DING
;
Bin CAI
;
Huan ZHANG
;
Linqi LIU
;
Xueyao YANG
;
Shu ZHOU
;
Zhao MA
;
Xiantao SONG
;
Hongjia ZHANG
Author Information
1. 首都医科大学附属北京安贞医院冠心病中心 国家心血管疾病临床医学研究中心 心血管智慧诊疗北京市工程研究中心，北京100029
- Keywords:
Coronary disease;
Magnetocardiography;
Coronary angiography;
Diagnostic techniques, cardiovascular
- From:
Chinese Journal of General Practitioners
2023;22(11):1159-1166
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To assess the clinical value of helium-free magnetocardiography(MCG) in the diagnosis of coronary artery disease(CAD).Methods:A total of 213 patients with suspected CAD undergoing MCG in Beijing Anzhen Hospital were enrolled in the study. All patients underwent coronary CT angiography/invasive coronary angiography(CCTA/ICA) within 48 hours after MCG scanning. The parameters of MCG, including magnetic field multipolarization, magnetic field unipolarization, T-wave flattened, change in magnetic field distribution at TT segment, abnormal T-peak amplitude ration of maximum to minimum, significant movement of poles, magnetic field angle deviation and abnormal distribution of positive pole were used for the evaluation of the stenosis of coronary arteries.Results:Among 213 patients, MCG scanning was completed in 193 cases(90.6%), while 20 cases were excluded for various reasons. The CCTA/ICA results were taken as gold standard, the total coincidence rate of MCG with the degree of stenosis was 88.60%(95% CI: 83.25%-92.72%), the sensitivity and specificity of MCG in the diagnosis of CAD was 89.63%(95% CI: 83.21%-94.21%) and 88.23%(95% CI:78.12%-94.78%), respectively; the positive and negative predictive value were 93.80%(95% CI:88.72%-96.68%) and 81.08%(95% CI:72.15%-87.64%), respectively. Conclusion:MCG is highly accurate in the diagnosis of CAD, it may be widely used clinically as an non-invasive method free of radiation or contrast agent.
