Physionet ECG Waveform Databases Summary

  1. Initialize WFDB Databases
    1. Quick dataset information

Initialize WFDB Databases

Pull all of the PhysioNet WaveForm DataBase collections related to ECG, according to their ECG Archive

#!/bin/bash

ecg_database_keys=(
"aami-ec13"
"edb"
"ltstdb"
"mitdb"
"nstdb"
"staffiii"
"chfdb"
"ecgcipa"
"ecgdmmld"
"ecgrdvq"
"ecgiddb"
"szdb"
"qtdb"
"shareedb"
"nifeadb"
"adfecgdb"
"aftdb"
"cudb"
"iafdb"
"ltafdb"
"macecgdb"
"afdb"
"cdb"
"ltdb"
"vfdb"
"nsrdb"
"stdb"
"svdb"
"nifecgdb"
"afpdb"
"ptbdb"
"incartdb"
"sddb"
"vfdb"
)

for db_key in "${ecg_database_keys[@]}"
do
echo $db_key;
if [ -d "$db_key/physionet.org/1.0.0" ]; then
echo "\t$db_key/physionet.org/1.0.0 exists...";
else
wget -r -N -c -np -P $db_key --cut-dirs=2 https://physionet.org/files/$db_key/1.0.0/;
fi
done

curdir=$(pwd)
for db_key in "${ecg_database_keys[@]}"
do
echo $db_key;
cd $db_key;
mv "physionet.org/1.0.0/"* .;
sha256sum -c SHA256SUMS.txt --quiet;
cd $curdir;
echo "";
#mv $db_key wfdb;
done

Quick dataset information

%matplotlib inline
import glob
import os
import wfdb

from matplotlib import pyplot as plt
from pprint import pprint
ecg_database_keys = (
"aami-ec13",
"edb",
"ltstdb",
"mitdb",
"nstdb",
"staffiii",
"chfdb",
"ecgcipa",
"ecgdmmld",
"ecgrdvq",
"ecgiddb",
"szdb",
"qtdb",
"shareedb",
"nifeadb",
"adfecgdb", # uses EDF format
"aftdb",
"cudb",
"iafdb",
"ltafdb",
"macecgdb",
"afdb",
"cdb",
"ltdb",
"vfdb",
"nsrdb",
"stdb",
"svdb",
"nifecgdb", # uses EDF format
"afpdb",
"ptbdb",
"incartdb",
"sddb",
"vfdb"
)
all_dbs = dict(wfdb.get_dbs())
missing_keys = []
ecg_dbs = {}

for ecg_db_key in ecg_database_keys:
if ecg_db_key not in all_dbs:
missing_keys.append(ecg_db_key)
continue
print(ecg_db_key, f"\n\t{all_dbs[ecg_db_key]}")
ecg_dbs[ecg_db_key] = all_dbs[ecg_db_key]

if missing_keys:
print('-' * 30)
print("Missing keys:", missing_keys)
aami-ec13 
    ANSI/AAMI EC13 Test Waveforms
edb 
    European ST-T Database
ltstdb 
    Long Term ST Database
mitdb 
    MIT-BIH Arrhythmia Database
nstdb 
    MIT-BIH Noise Stress Test Database
staffiii 
    STAFF III Database
chfdb 
    BIDMC Congestive Heart Failure Database
ecgcipa 
    CiPA ECG Validation Study
ecgdmmld 
    ECG Effects of Dofetilide, Moxifloxacin, Dofetilide+Mexiletine, Dofetilide+Lidocaine and Moxifloxacin+Diltiazem
ecgrdvq 
    ECG Effects of Ranolazine, Dofetilide, Verapamil, and Quinidine
ecgiddb 
    ECG-ID Database
szdb 
    Post-Ictal Heart Rate Oscillations in Partial Epilepsy
qtdb 
    QT Database
shareedb 
    Smart Health for Assessing the Risk of Events via ECG Database
nifeadb 
    Non-Invasive Fetal ECG Arrhythmia Database
adfecgdb 
    Abdominal and Direct Fetal ECG Database
aftdb 
    AF Termination Challenge Database
cudb 
    CU Ventricular Tachyarrhythmia Database
iafdb 
    Intracardiac Atrial Fibrillation Database
ltafdb 
    Long Term AF Database
macecgdb 
    Motion Artifact Contaminated ECG Database
afdb 
    MIT-BIH Atrial Fibrillation Database
cdb 
    MIT-BIH ECG Compression Test Database
ltdb 
    MIT-BIH Long-Term ECG Database
vfdb 
    MIT-BIH Malignant Ventricular Ectopy Database
nsrdb 
    MIT-BIH Normal Sinus Rhythm Database
stdb 
    MIT-BIH ST Change Database
svdb 
    MIT-BIH Supraventricular Arrhythmia Database
nifecgdb 
    Non-Invasive Fetal ECG Database
afpdb 
    PAF Prediction Challenge Database
ptbdb 
    PTB Diagnostic ECG Database
incartdb 
    St Petersburg INCART 12-lead Arrhythmia Database
sddb 
    Sudden Cardiac Death Holter Database
vfdb 
    MIT-BIH Malignant Ventricular Ectopy Database
# Iterate through all datasets, show summary information

for key, desc in ecg_dbs.items():
db_dir = os.path.join("wfdb", key)
print(f"{key}\n\t{desc}")
with open(os.path.join(db_dir, "RECORDS"), "r") as f:
records = f.read().splitlines()
print("\tnumber of records: "+ str(len(records)))

#for r in records:
# record = wfdb.io.rdrecord(os.path.join(db_dir, r))
# sig_units = list(zip(record.__dict__["sig_name"], record.__dict__["units"]))

# summarize records
print("Records summary:")
try:
for r in records:
rec_name = os.path.join(db_dir, r)
_, fields = wfdb.rdsamp(rec_name)
pprint(fields, indent=2)
break
except Exception as e:
print(e)

# summarize annotations
print("Annotations summary:")
try:
for r in records:
rec_name = os.path.join(db_dir, r)
fns = [fn for fn in glob.iglob(rec_name+".*") if not fn.endswith(".hea") and not fn.endswith("dat") and not fn.endswith(".hea-")]
if not fns:
print("No annotation data")
break
for fn in fns:
_, ext = os.path.splitext(fn)
print(ext)
ann = wfdb.rdann(rec_name, ext[1:], summarize_labels=True)
print(ann.contained_labels)
break
break
except Exception as e:
print(e)

print("~"* 60)
aami-ec13
    ANSI/AAMI EC13 Test Waveforms
    number of records: 10
Records summary:
{ 'base_date': None,
  'base_time': None,
  'comments': ['ANSI/AAMI EC13-1992, Figure 3a.'],
  'fs': 720,
  'n_sig': 1,
  'sig_len': 43081,
  'sig_name': ['ECG'],
  'units': ['mV']}
Annotations summary:
No annotation data
edb
European ST-T Database
number of records: 90
Records summary:
{ 'base_date': None,
'base_time': None,
'comments': [ 'Age: 62 Sex: M',
'Mixed angina',
'1-vessel disease (RCA)',
'Medications: nitrates, diltiazem',
'Recorder type: ICR 7200'],
'fs': 250,
'n_sig': 2,
'sig_len': 1800000,
'sig_name': ['V4', 'MLIII'],
'units': ['mV', 'mV']}
Annotations summary:
.atr
label_store symbol description
1 1 N Normal beat
5 5 V Premature ventricular contraction
6 6 F Fusion of ventricular and normal beat
14 14 ~ Signal quality change
18 18 s ST change
28 28 + Rhythm change
ltstdb Long Term ST Database number of records: 86 Records summary: { 'base_date': datetime.date(1994, 12, 9), 'base_time': datetime.time(17, 8), 'comments': [ 'Age: 58 Sex: M', 'Comments:', 'Lead 0:', 'All ST change episodes appeared to be rate-related ' 'non-ischemic', 'episodes characterized by J-point depression and scooping of ' 'the', 'ST segment.', 'Lead 1:', 'All episodes in lead 1 are compatible with heart-rate induced', 'non-ischemic changes and are so labeled. It is recognized ' 'that', 'this is an arbitrary decision.', 'This record is from the initial Long-Term ST Database of', 'eleven 24-hour ST annotated ambulatory records (record ' 's20689).', 'Symptoms during Holter recording: None reported', 'Diagnoses:', 'No coronary artery disease', 'Treatment:', 'Medications: None', 'Balloon Angioplasty: No', 'Coronary Artery bypass Grafting: No', 'History:', 'ST depressions but no coronary artery disease', 'Hypertension: No', 'Left ventricular hypertrophy: No', 'Cardiomyopathy: No', 'Valve disease: No', 'Electrolyte abnormalities: No', 'Hypercapnia, anemia, hypotension, hyperventilation: No', 'Atrioventricular nodal conduction delay: No', 'Intraventricular conduction block: No', 'Previous Myocardial Infarction: No', 'Previous tests:', 'ECG stress test: Yes', 'Date: No data', 'Findings: Ischemic ST changes at high work load', 'Thallium/Stress echo: Negative', 'Left ventricular function:', 'Normal', 'Echocardiogram:', 'Normal', 'Coronary Arteriography:', 'No significant disease', 'Baseline ECG:', 'Normal sinus rhythm', 'Left atrial abnormality', 'Mild ST elevation V2-V4 consistent with early repolarization', 'Holter Recording:', 'Date: 09/12/1994', 'Recorder: No data'], 'fs': 250, 'n_sig': 2, 'sig_len': 20594750, 'sig_name': ['ML2', 'MV2'], 'units': ['mV', 'mV']} Annotations summary: .stb label_store symbol description 18 18 s ST change
mitdb
MIT-BIH Arrhythmia Database
number of records: 48
Records summary:
{ 'base_date': None,
'base_time': None,
'comments': ['69 M 1085 1629 x1', 'Aldomet, Inderal'],
'fs': 360,
'n_sig': 2,
'sig_len': 650000,
'sig_name': ['MLII', 'V5'],
'units': ['mV', 'mV']}
Annotations summary:
.xws
label_store symbol description
2 2.0 L Left bundle branch block beat
8 8.0 A Atrial premature contraction
11 11.0 j Nodal (junctional) escape beat
12 12.0 / Paced beat
14 14.0 ~ Signal quality change
15 NaN NaN NaN
16 16.0 | Isolated QRS-like artifact
17 NaN NaN NaN
18 18.0 s ST change
19 19.0 T T-wave change
20 20.0 * Systole
21 21.0 D Diastole
23 23.0 = Measurement annotation
24 24.0 p P-wave peak
25 25.0 B Left or right bundle branch block
26 26.0 ^ Non-conducted pacer spike
27 27.0 t T-wave peak
28 28.0 + Rhythm change
29 29.0 u U-wave peak
nstdb MIT-BIH Noise Stress Test Database number of records: 15 Records summary: { 'base_date': None, 'base_time': None, 'comments': ["Created by `nst' from records 118 and em (SNR = 0 dB)"], 'fs': 360, 'n_sig': 2, 'sig_len': 650000, 'sig_name': ['MLII', 'V1'], 'units': ['mV', 'mV']} Annotations summary: .xws cannot reshape array of size 91 into shape (2)
staffiii
STAFF III Database
number of records: 520
Records summary:
{ 'base_date': datetime.date(1995, 9, 27),
'base_time': datetime.time(20, 26),
'comments': ['Age: 52', 'Sex: F'],
'fs': 1000,
'n_sig': 9,
'sig_len': 300000,
'sig_name': ['V1', 'V2', 'V3', 'V4', 'V5', 'V6', 'I', 'II', 'III'],
'units': ['mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV']}
Annotations summary:
No annotation data
chfdb BIDMC Congestive Heart Failure Database number of records: 15 Records summary: { 'base_date': None, 'base_time': datetime.time(10, 0), 'comments': ['Age: 71 Sex: M NYHA class: III-IV'], 'fs': 250, 'n_sig': 2, 'sig_len': 17994491, 'sig_name': ['ECG1', 'ECG2'], 'units': ['mV', 'mV']} Annotations summary: .ecg label_store symbol description 1 1 N Normal beat 5 5 V Premature ventricular contraction 9 9 S Premature or ectopic supraventricular beat 41 41 r R-on-T premature ventricular contraction 28 28 + Rhythm change
ecgcipa
CiPA ECG Validation Study
number of records: 11498
Records summary:
{ 'base_date': None,
'base_time': None,
'comments': [ 'STUDYID,USUBJID,EGREFID,EGDTC,WAVEFORM',
'SCR-004,1001,00689D31-8491-4643-B3C8-45241FBBD47C,20170327065710.000,derived'],
'fs': 1000,
'n_sig': 16,
'sig_len': 1200,
'sig_name': [ 'I',
'II',
'III',
'AVR',
'AVL',
'AVF',
'V1',
'V2',
'V3',
'V4',
'V5',
'V6',
'VCGMAG',
'X',
'Y',
'Z'],
'units': [ 'uV',
'uV',
'uV',
'uV',
'uV',
'uV',
'uV',
'uV',
'uV',
'uV',
'uV',
'uV',
'uV',
'uV',
'uV',
'uV']}
Annotations summary:
.atr
label_store symbol description
40 40 ) Waveform end
1 1 N Normal beat
27 27 t T-wave peak
39 39 ( Waveform onset
ecgdmmld ECG Effects of Dofetilide, Moxifloxacin, Dofetilide+Mexiletine, Dofetilide+Lidocaine and Moxifloxacin+Diltiazem number of records: 8422 Records summary: { 'base_date': None, 'base_time': None, 'comments': [], 'fs': 1000, 'n_sig': 12, 'sig_len': 10000, 'sig_name': [ 'I', 'II', 'III', 'AVR', 'AVL', 'AVF', 'V1', 'V2', 'V3', 'V4', 'V5', 'V6'], 'units': [ 'mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV']} Annotations summary: No annotation data
ecgrdvq
ECG Effects of Ranolazine, Dofetilide, Verapamil, and Quinidine
number of records: 10455
Records summary:
{ 'base_date': None,
'base_time': None,
'comments': [],
'fs': 1000,
'n_sig': 12,
'sig_len': 10000,
'sig_name': [ 'I',
'II',
'III',
'AVR',
'AVL',
'AVF',
'V1',
'V2',
'V3',
'V4',
'V5',
'V6'],
'units': [ 'mV',
'mV',
'mV',
'mV',
'mV',
'mV',
'mV',
'mV',
'mV',
'mV',
'mV',
'mV']}
Annotations summary:
No annotation data
ecgiddb ECG-ID Database number of records: 310 Records summary: { 'base_date': None, 'base_time': None, 'comments': ['Age: 25', 'Sex: male', 'ECG date: 07.12.2004'], 'fs': 500, 'n_sig': 2, 'sig_len': 10000, 'sig_name': ['ECG I', 'ECG I filtered'], 'units': ['mV', 'mV']} Annotations summary: .atr label_store symbol description 1 1 N Normal beat 27 27 t T-wave peak
szdb
Post-Ictal Heart Rate Oscillations in Partial Epilepsy
number of records: 7
Records summary:
{ 'base_date': None,
'base_time': None,
'comments': [],
'fs': 200,
'n_sig': 1,
'sig_len': 1079998,
'sig_name': ['ECG'],
'units': ['mV']}
Annotations summary:
.xws
cannot reshape array of size 89 into shape (2)
qtdb QT Database number of records: 105 Records summary: { 'base_date': None, 'base_time': None, 'comments': [ '69 M 1085 1629 x1', 'Aldomet, Inderal', 'Produced by xform from record 100, beginning at 7:00.000'], 'fs': 250, 'n_sig': 2, 'sig_len': 225000, 'sig_name': ['MLII', 'V5'], 'units': ['mV', 'mV']} Annotations summary: .q1c label_store symbol description 1 1 N Normal beat 39 39 ( Waveform onset 40 40 ) Waveform end 24 24 p P-wave peak 27 27 t T-wave peak
shareedb
Smart Health for Assessing the Risk of Events via ECG Database
number of records: 139
Records summary:
{ 'base_date': None,
'base_time': datetime.time(12, 20, 53),
'comments': [],
'fs': 128,
'n_sig': 3,
'sig_len': 10322048,
'sig_name': ['III', 'V3', 'V5'],
'units': ['mV', 'mV', 'mV']}
Annotations summary:
.qrs
label_store symbol description
1 1 N Normal beat
nifeadb Non-Invasive Fetal ECG Arrhythmia Database number of records: 26 Records summary: { 'base_date': None, 'base_time': None, 'comments': [], 'fs': 1000, 'n_sig': 6, 'sig_len': 600052, 'sig_name': [ 'ECG', 'Abdomen_1', 'Abdomen_2', 'Abdomen_3', 'Abdomen_4', 'Abdomen_5'], 'units': ['mV', 'mV', 'mV', 'mV', 'mV', 'mV']} Annotations summary: No annotation data
adfecgdb
Abdominal and Direct Fetal ECG Database
number of records: 5
Records summary:
[Errno 2] No such file or directory: '/home/alexander/sandbox/src/git.udia.ca/alex/ecgml_research/wfdb/adfecgdb/r01.edf.hea'
Annotations summary:
.qrs
label_store symbol description
1 1 N Normal beat
aftdb AF Termination Challenge Database number of records: 80 Records summary: { 'base_date': None, 'base_time': datetime.time(1, 28, 24), 'comments': [], 'fs': 128, 'n_sig': 2, 'sig_len': 7680, 'sig_name': ['ECG', 'ECG'], 'units': ['mV', 'mV']} Annotations summary: .qrs label_store symbol description 1 1 N Normal beat
cudb
CU Ventricular Tachyarrhythmia Database
number of records: 35
Records summary:
{ 'base_date': None,
'base_time': None,
'comments': [],
'fs': 250,
'n_sig': 1,
'sig_len': 127232,
'sig_name': ['ECG'],
'units': ['mV']}
Annotations summary:
.xws
label_store symbol description
2 2.0 L Left bundle branch block beat
8 8.0 A Atrial premature contraction
11 11.0 j Nodal (junctional) escape beat
12 12.0 / Paced beat
14 14.0 ~ Signal quality change
15 NaN NaN NaN
16 16.0 | Isolated QRS-like artifact
17 NaN NaN NaN
18 18.0 s ST change
19 19.0 T T-wave change
20 20.0 * Systole
21 21.0 D Diastole
23 23.0 = Measurement annotation
24 24.0 p P-wave peak
25 25.0 B Left or right bundle branch block
26 26.0 ^ Non-conducted pacer spike
27 27.0 t T-wave peak
28 28.0 + Rhythm change
29 29.0 u U-wave peak
iafdb Intracardiac Atrial Fibrillation Database number of records: 32 Records summary: { 'base_date': None, 'base_time': None, 'comments': [ '<age>: 81 <sex>: F <diagnosis>: Atrial Fibrillation', '<medications>: Atenolol, Monopril', 'Adenosine injected at 70 sec', 'Note: signals are uncalibrated'], 'fs': 1000, 'n_sig': 8, 'sig_len': 154500, 'sig_name': ['II', 'V1', 'aVF', 'CS12', 'CS34', 'CS56', 'CS78', 'CS90'], 'units': ['mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV']} Annotations summary: .qrs label_store symbol description 1 1 N Normal beat
ltafdb
Long Term AF Database
number of records: 84
Records summary:
{ 'base_date': datetime.date(2003, 1, 31),
'base_time': datetime.time(9, 30),
'comments': [],
'fs': 128,
'n_sig': 2,
'sig_len': 9661440,
'sig_name': ['ECG', 'ECG'],
'units': ['mV', 'mV']}
Annotations summary:
.qrs
label_store symbol description
16 16 | Isolated QRS-like artifact
1 1 N Normal beat
19 19 T T-wave change
macecgdb Motion Artifact Contaminated ECG Database number of records: 27 Records summary: { 'base_date': None, 'base_time': None, 'comments': [ '<age>: 25 <sex>: M <diagnoses>: (none) <medications>: ' '(none)'], 'fs': 500, 'n_sig': 4, 'sig_len': 4000, 'sig_name': ['ECG 1', 'ECG 2', 'ECG 3', 'ECG 4'], 'units': ['mV', 'mV', 'mV', 'mV']} Annotations summary: No annotation data
afdb
MIT-BIH Atrial Fibrillation Database
number of records: 25
Records summary:
sampto must be greater than sampfrom
Annotations summary:
.atr
label_store symbol description
28 28 + Rhythm change
cdb MIT-BIH ECG Compression Test Database number of records: 168 Records summary: { 'base_date': None, 'base_time': None, 'comments': [], 'fs': 250, 'n_sig': 2, 'sig_len': 5120, 'sig_name': ['ECG', 'ECG'], 'units': ['mV', 'mV']} Annotations summary: .xws label_store symbol description 2 2.0 L Left bundle branch block beat 8 8.0 A Atrial premature contraction 11 11.0 j Nodal (junctional) escape beat 12 12.0 / Paced beat 13 13.0 Q Unclassifiable beat 14 14.0 ~ Signal quality change 15 NaN NaN NaN 16 16.0 | Isolated QRS-like artifact 17 NaN NaN NaN 18 18.0 s ST change 19 19.0 T T-wave change 20 20.0 * Systole 21 21.0 D Diastole 23 23.0 = Measurement annotation 24 24.0 p P-wave peak 25 25.0 B Left or right bundle branch block 26 26.0 ^ Non-conducted pacer spike 27 27.0 t T-wave peak 28 28.0 + Rhythm change 29 29.0 u U-wave peak
ltdb
MIT-BIH Long-Term ECG Database
number of records: 7
Records summary:
{ 'base_date': None,
'base_time': None,
'comments': ['Age: 46 Sex: M'],
'fs': 128,
'n_sig': 2,
'sig_len': 10828800,
'sig_name': ['ECG1', 'ECG2'],
'units': ['mV', 'mV']}
Annotations summary:
.xws
label_store symbol description
2 2.0 L Left bundle branch block beat
8 8.0 A Atrial premature contraction
11 11.0 j Nodal (junctional) escape beat
12 12.0 / Paced beat
13 13.0 Q Unclassifiable beat
14 14.0 ~ Signal quality change
15 NaN NaN NaN
16 16.0 | Isolated QRS-like artifact
17 NaN NaN NaN
18 18.0 s ST change
19 19.0 T T-wave change
20 20.0 * Systole
21 21.0 D Diastole
23 23.0 = Measurement annotation
24 24.0 p P-wave peak
25 25.0 B Left or right bundle branch block
26 26.0 ^ Non-conducted pacer spike
27 27.0 t T-wave peak
28 28.0 + Rhythm change
29 29.0 u U-wave peak
vfdb MIT-BIH Malignant Ventricular Ectopy Database number of records: 22 Records summary: { 'base_date': None, 'base_time': None, 'comments': [], 'fs': 250, 'n_sig': 2, 'sig_len': 525000, 'sig_name': ['ECG', 'ECG'], 'units': ['mV', 'mV']} Annotations summary: .xws label_store symbol description 2 2.0 L Left bundle branch block beat 8 8.0 A Atrial premature contraction 11 11.0 j Nodal (junctional) escape beat 13 13.0 Q Unclassifiable beat 14 14.0 ~ Signal quality change 15 NaN NaN NaN 16 16.0 | Isolated QRS-like artifact 17 NaN NaN NaN 18 18.0 s ST change 19 19.0 T T-wave change 20 20.0 * Systole 21 21.0 D Diastole 23 23.0 = Measurement annotation 24 24.0 p P-wave peak 25 25.0 B Left or right bundle branch block 26 26.0 ^ Non-conducted pacer spike 27 27.0 t T-wave peak 28 28.0 + Rhythm change 29 29.0 u U-wave peak
nsrdb
MIT-BIH Normal Sinus Rhythm Database
number of records: 18
Records summary:
{ 'base_date': None,
'base_time': datetime.time(8, 4),
'comments': ['32 M'],
'fs': 128,
'n_sig': 2,
'sig_len': 11730944,
'sig_name': ['ECG1', 'ECG2'],
'units': ['mV', 'mV']}
Annotations summary:
.atr
label_store symbol description
1 1 N Normal beat
5 5 V Premature ventricular contraction
6 6 F Fusion of ventricular and normal beat
9 9 S Premature or ectopic supraventricular beat
14 14 ~ Signal quality change
16 16 | Isolated QRS-like artifact
stdb MIT-BIH ST Change Database number of records: 28 Records summary: { 'base_date': None, 'base_time': None, 'comments': [], 'fs': 360, 'n_sig': 2, 'sig_len': 536976, 'sig_name': ['ECG', 'ECG'], 'units': ['mV', 'mV']} Annotations summary: .xws label_store symbol description 2 2.0 L Left bundle branch block beat 8 8.0 A Atrial premature contraction 11 11.0 j Nodal (junctional) escape beat 12 12.0 / Paced beat 14 14.0 ~ Signal quality change 15 NaN NaN NaN 16 16.0 | Isolated QRS-like artifact 17 NaN NaN NaN 18 18.0 s ST change 19 19.0 T T-wave change 20 20.0 * Systole 21 21.0 D Diastole 23 23.0 = Measurement annotation 24 24.0 p P-wave peak 25 25.0 B Left or right bundle branch block 26 26.0 ^ Non-conducted pacer spike 27 27.0 t T-wave peak 28 28.0 + Rhythm change 29 29.0 u U-wave peak
svdb
MIT-BIH Supraventricular Arrhythmia Database
number of records: 78
Records summary:
{ 'base_date': None,
'base_time': None,
'comments': [],
'fs': 128,
'n_sig': 2,
'sig_len': 230400,
'sig_name': ['ECG1', 'ECG2'],
'units': ['mV', 'mV']}
Annotations summary:
.atr
label_store symbol description
1 1 N Normal beat
5 5 V Premature ventricular contraction
6 6 F Fusion of ventricular and normal beat
9 9 S Premature or ectopic supraventricular beat
14 14 ~ Signal quality change
16 16 | Isolated QRS-like artifact
nifecgdb Non-Invasive Fetal ECG Database number of records: 55 Records summary: [Errno 2] No such file or directory: '/home/alexander/sandbox/src/git.udia.ca/alex/ecgml_research/wfdb/nifecgdb/ecgca102.edf.hea' Annotations summary: .qrs label_store symbol description 1 1 N Normal beat
afpdb
PAF Prediction Challenge Database
number of records: 300
Records summary:
{ 'base_date': None,
'base_time': None,
'comments': [],
'fs': 128,
'n_sig': 2,
'sig_len': 230400,
'sig_name': ['ECG0', 'ECG1'],
'units': ['mV', 'mV']}
Annotations summary:
.qrs
label_store symbol description
1 1 N Normal beat
ptbdb PTB Diagnostic ECG Database number of records: 549 Records summary: { 'base_date': None, 'base_time': None, 'comments': [ 'age: 81', 'sex: female', 'ECG date: 01/10/1990', 'Diagnose:', 'Reason for admission: Myocardial infarction', 'Acute infarction (localization): infero-latera', 'Former infarction (localization): no', 'Additional diagnoses: Diabetes mellitus', 'Smoker: no', 'Number of coronary vessels involved: 1', 'Infarction date (acute): 29-Sep-90', 'Previous infarction (1) date: n/a', 'Previous infarction (2) date: n/a', 'Hemodynamics:', 'Catheterization date: 16-Oct-90', 'Ventriculography: Akinesia inferior wall', 'Chest X-ray: Heart size upper limit of norm', 'Peripheral blood Pressure (syst/diast): 140/80 mmHg', 'Pulmonary artery pressure (at rest) (syst/diast): n/a', 'Pulmonary artery pressure (at rest) (mean): n/a', 'Pulmonary capillary wedge pressure (at rest): n/a', 'Cardiac output (at rest): n/a', 'Cardiac index (at rest): n/a', 'Stroke volume index (at rest): n/a', 'Pulmonary artery pressure (laod) (syst/diast): n/a', 'Pulmonary artery pressure (laod) (mean): n/a', 'Pulmonary capillary wedge pressure (load): n/a', 'Cardiac output (load): n/a', 'Cardiac index (load): n/a', 'Stroke volume index (load): n/a', 'Aorta (at rest) (syst/diast): 160/64 cmH2O', 'Aorta (at rest) mean: 106 cmH2O', 'Left ventricular enddiastolic pressure: 11 cmH2O', 'Left coronary artery stenoses (RIVA): RIVA 70% proximal to ' 'ramus diagonalis_2', 'Left coronary artery stenoses (RCX): No stenoses', 'Right coronary artery stenoses (RCA): No stenoses', 'Echocardiography: n/a', 'Therapy:', 'Infarction date: 29-Sep-90', 'Catheterization date: 16-Oct-90', 'Admission date: 29-Sep-90', 'Medication pre admission: Isosorbit-Dinitrate Digoxin ' 'Glibenclamide', 'Start lysis therapy (hh.mm): 19:45', 'Lytic agent: Gamma-TPA', 'Dosage (lytic agent): 30 mg', 'Additional medication: Heparin Isosorbit-Mononitrate ASA ' 'Diazepam', 'In hospital medication: ASA Isosorbit-Mononitrate ' 'Ca-antagonist Amiloride+Chlorothiazide Glibenclamide Insulin', 'Medication after discharge: ASA Isosorbit-Mononitrate ' 'Amiloride+Chlorothiazide Glibenclamide'], 'fs': 1000, 'n_sig': 15, 'sig_len': 38400, 'sig_name': [ 'i', 'ii', 'iii', 'avr', 'avl', 'avf', 'v1', 'v2', 'v3', 'v4', 'v5', 'v6', 'vx', 'vy', 'vz'], 'units': [ 'mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV', 'mV']} Annotations summary: .xyz label_store symbol description 1 1.0 N Normal beat 63 NaN NaN NaN
incartdb
St Petersburg INCART 12-lead Arrhythmia Database
number of records: 75
Records summary:
{ 'base_date': None,
'base_time': None,
'comments': [ '<age>: 65 <sex>: F <diagnoses> Coronary artery disease, '
'arterial hypertension',
'patient 1',
'PVCs, noise'],
'fs': 257,
'n_sig': 12,
'sig_len': 462600,
'sig_name': [ 'I',
'II',
'III',
'AVR',
'AVL',
'AVF',
'V1',
'V2',
'V3',
'V4',
'V5',
'V6'],
'units': [ 'mV',
'mV',
'mV',
'mV',
'mV',
'mV',
'mV',
'mV',
'mV',
'mV',
'mV',
'mV']}
Annotations summary:
.atr
label_store symbol description
1 1 N Normal beat
5 5 V Premature ventricular contraction
sddb Sudden Cardiac Death Holter Database number of records: 23 Records summary: { 'base_date': None, 'base_time': datetime.time(12, 0), 'comments': [ 'Produced by xform_new from record 30, beginning at 26:35.000', 'vfon: 07:54:33'], 'fs': 250, 'n_sig': 2, 'sig_len': 22099250, 'sig_name': ['ECG', 'ECG'], 'units': ['mV', 'mV']} Annotations summary: .ari label_store symbol description 1 1 N Normal beat 5 5 V Premature ventricular contraction 41 41 r R-on-T premature ventricular contraction 9 9 S Premature or ectopic supraventricular beat 10 10 E Ventricular escape beat 18 18 s ST change 28 28 + Rhythm change 30 30 ? Learning ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~