MIT-BIH Arrhythmia Database

The MIT-BIH Arrhythmia Database contains 48 half-hour excerpts of two-channel ambulatory ECG recordings, obtained from 47 subjects studied by the BIH Arrhythmia Laboratory between 1975 and 1979. Twenty-three recordings were chosen at random from a set of 4000 24-hour ambulatory ECG recordings collected from a mixed population of inpatients (about 60%) and outpatients (about 40%) at Boston's Beth Israel Hospital; the remaining 25 recordings were selected from the same set to include less common but clinically significant arrhythmias that would not be well-represented in a small random sample.

麻省理工学院-贝斯以色列医院心动过速数据库收录了47名受试者在1975年至1979年间由BIH心动过速实验室研究的48段各为半小时的两通道便携式心电图记录。其中23段记录是从收集于波士顿贝斯以色列医院混合人群（约60%为住院患者，约40%为门诊患者）的4000段24小时便携式心电图记录中随机选取的；剩余的25段记录则从同一集合中挑选，旨在包含一些虽不常见但对临床具有重要意义的节律失常，这些节律失常在较小的随机样本中可能无法得到充分体现。