Objective To investigate the warning function of support vector machine(SVM)models based on heart-rate dynamics for prediction of cardiac death after acute myocardial infarction(AMI). Methods A total of226 AMI patients were admitted to First Affiliated Hospital of Harbin Medical University from January 2009 to December 2009.Multivariate heart-rate dynamics parameters such as heart-rate variability(HRV),deceleration capacity of heart rate(DC)and acceleration capacity of heart rate(AC)extracted from Holter mo...
【基金】
黑龙江省卫生计生委科研课题资助项目(编号:2014-298)
【更新日期】
2017-01-17
【分类号】
R542.22
【正文快照】
feature vector(5HRV indices);B.6dimension feature vector(4HRV indices+DC+AC);and C.8dimensionfeature vector(5HRV indices+DC+AC+mean heart rate).Mean AUC of 5dimension vector was 0.890,0.888for 6dimension vector and 0.858for 8dimension vector,compared with