PhysioNet

This repo contains MIT-BIH data preprocessing and a sample deep model.

The original data can be found at https://physionet.org/content/mitdb/1.0.0/

Task

(1) Classify ECG heart beats into 5 classes: N, S, V, F, Q

(2) Classify ECG heart beats into 2 classes: V, non-V (need manually modify test_mitdb.label2index)

Usage

# (1) unzip raw data
unzip data/mit-bih-arrhythmia-database-1.0.0.zip

# (2) preprocess to get npy
python preprocess.py

# (3) train
python test_mitdb.py

Label Description

(1) Beat Level

The label-group map is used from ANSI/AAMI EC57: 2012 Testing and reporting performance results of cardiac rhythm and ST segment measurement algorithms, page 8

Code	Group	Description	中文
N	N	Normal beat (displayed as"·" by the PhysioBank ATM, LightWAVE, pschart, and psfd)	正常
L	N	Left bundle branch block beat	左束支传导阻滞心搏
R	N	Right bundle branch block beat	右束支传导阻滞心搏
B	N	Bundle branch block beat (unspecified)	束支传导阻滞心搏
A	S	Atrial premature beat	房性早搏，房性期前收缩(心室搏动还未结束新房就开始搏动)
a	S	Aberrated atrial premature beat	异常房性早搏
J	S	Nodal (junctional) premature beat	交界性早搏
S	S	Supraventricular premature or ectopic beat (atrial or nodal)	室上性早搏(发生于心房或者房室结的统称为室上性，室上性早搏，是说早搏介于房性和室性之间，属于轻微的心率失常)
V	V	Premature ventricular contraction	室性收缩
r	V	R-on-T premature ventricular contraction	R落在T上的室性早搏
F	F	Fusion of ventricular and normal beat	心室融合心跳
e	S	Atrial escape beat	房性逸搏(被动性异位心律)
j	S	Nodal (junctional) escape beat	交界性逸搏
n	S	Supraventricular escape beat (atrial or nodal)	室上性逸搏
E	V	Ventricular escape beat	室性逸搏
/	Q	Paced beat	起搏心搏
f	Q	Fusion of paced and normal beat	起搏融合心跳
Q	Q	Unclassifiable beat	未分类心跳
?	Q	Beat not classified during learning	其他

(2) Rhythm Level