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- W2355442920 abstract "Objective To study the diagnostic value of Magnto-Cardiography(MCG) to the patients with coronary heart disesase(CHD) and to evaluate the diagnostic indicators.Methods Two hundred and twenty one patients were studied by MCG within 72 hours before coronary angiography.Through magnetic field map(MFM) and current density distribution map(CDDM) reconstructed by Magwin 2.5 software package(SQUID AG,Germany),four quantitative indicators were analyzed: ①ACTM(average classification of total maps);②R-max/T-max,the indicators were used to evaluate the diagnostic value of MCG to the patients with CHD.The patients were then divided into CHD group(n=129) and control group(n=92) according to the coronary angiographic results(CHD was diagnosed in case of stenosis≥50 % in ≥1 vessel).Results For analysis of CDDM,significant difference was found in ACTM between CHD and control group(CHD group:3.0±0.6,control group: 2.2±0.5,P=0.000).The cut-off point was selected according to the ROC curve and clinical practice.ACTM of 2.45 was selected as cut-off point(2.45 as abnormal).The diagnostic sensitivity of ACTM was 78.3%,the specificity was 75%.For analysis of CDDM,significant difference was found in R-max/T-max between CHD and control group(CHD group: 5.5±2.7,control group: 3.6±2.2,P=0.000).R-max/T-max of 3.65 was selected as cut-off point(≥3.65 as abnormal),sensitivity was 72.9 %,specificity was 67.4%.Conclusion MCG under condition of an advanced data analysis has higher diagnostic value in patients with CHD." @default.
- W2355442920 created "2016-06-24" @default.
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- W2355442920 date "2008-01-01" @default.
- W2355442920 modified "2023-09-25" @default.
- W2355442920 title "Clinical application value of magnetocardiography to the patients with coronary heart disease" @default.
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