Resources


Database Open Access

VitalDB Arrhythmia Database: An Anesthesiologist-Validated Large-Scale Intraoperative Arrhythmia Dataset with Beat and Rhythm Labels

Dain Eun, Kayoung Shim, Hyunsoo Lee, et al.

We present a comprehensive intraoperative arrhythmia dataset with 734,528 seconds of ECG recordings from 482 patients, featuring over 660,000 beats annotated and validated by five anesthesiologists.

ppg vitaldb arterial waveform intraoperative dataset ecg

Published: Feb. 26, 2026. Version: 1.0.0

Database Open Access

The CirCor DigiScope Phonocardiogram Dataset

Jorge Oliveira, Francesco Renna, Paulo Costa, et al.

A large collection of multi-location heart sound signals, with 5272 records collected from 1568 subjects. Heart murmurs have been annotated by a human annotator based on their time, shape, pitch, grading, quality, location and location intensity.

signal processing murmur pitch george b moody physionet challenge 2022 murmur grading murmur location murmur timing phonocardiogram pregnant murmur shape murmur detection murmur intensity murmur quality pediatric

Published: May 10, 2022. Version: 1.0.3

Visualize waveforms

Database Open Access

Brno University of Technology ECG Quality Database (BUT QDB)

Andrea Nemcova, Radovan Smisek, Kamila Opravilová, et al.

The database is intended for the development and objective comparison of algorithms designed to assess the quality of ECG records. It also enables objective comparison of results between authors.

Published: July 22, 2020. Version: 1.0.0

Visualize waveforms

Database Open Access

GRABMyoFlow - Dataset extension

Carl Linus Ehlert, James Tung, Ashirbad Pradhan

GRABMyoFlow extends the GRABMyo sEMG dataset with dynamic transitions and 20 new subjects (63 total). Features multi-day wrist recordings for robust hand gesture recognition and biometrics research.

Published: April 16, 2026. Version: 1.0.0

Visualize waveforms

Database Credentialed Access

MIMIC-IV-ECHO-Ext-LVVOLUMES-A4C-ROI: Annotated Subset of Apical Four-Chamber Echocardiography for PoCUS-Style LV Volume and Function Analysis

Kamlin Ekambaram, Anurag Arnab, Philip Herbst, et al.

A curated subset of MIMIC-IV-ECHO providing apical four-chamber cine loops with manual ROI masks, volumetric labels, and ready-to-use MP4/NPZ derivatives for robust LV volume and ejection fraction research.

ultrasound echocardiography medical imaging dicom lvesv roi segmentation cardiac video analysis left ventricular volume mimic-iv-echo apical four-chamber quantitative cardiology biplane simpson transformer models lvef ejection fraction a4c pocus lvedv domain adaptation deep learning

Published: Feb. 26, 2026. Version: 1.0.0

Database Credentialed Access

CXReasonBench: A Benchmark for Evaluating Structured Diagnostic Reasoning in Chest X-rays

Hyungyung Lee, Geon Choi, Jung Oh Lee, et al.

CheXStruct is an automated pipeline that derives structured diagnostic reasoning steps from chest X-rays. CXReasonBench builds on this to evaluate whether models perform clinically grounded, multi-step reasoning beyond final diagnoses.

evaluation chest x-ray benchmark structured chest x-ray qa intermediate reasoning steps structured reasoning grounded reasoning diagnostic reasoning structured diagnostic pipeline

Published: Oct. 23, 2025. Version: 1.0.1

Database Open Access

Myocardial perfusion scintigraphy image database

Wesley Calixto, Solange Nogueira, Fernanda Luz, et al.

This database provides a collection of myocardial perfusion scintigraphy images. The dataset encompasses a diversity of clinical cases, including various perfusion patterns and underlying cardiac conditions.

nifti artificial intelligence anonymization clinical diagnosis myocardial perfusion systems modeling myocardial perfusion scintigraphy metadata ventricular walls coronary artery disease convolutional neural networks automated segmentation dicom

Published: Sept. 9, 2025. Version: 1.0.0

Database Restricted Access

Electrocardiogram-Capable Smartwatches: Assessing Their Clinical Accuracy and Application

Joaquin Recas, Mauro Buelga Suárez, Sergio González-Cabeza, et al.

This database allows the study of the feasibility of using ECG-capable smartwatches as diagnostic tools, focusing on their compliance with clinical standards and their ability to measure critical ECG parameters beyond AF detection.

ischemia fitbit sense ambulatory samsung galaxy watch st-segment apple watch withings scanwatch smartwatch

Published: April 9, 2025. Version: 1.0.0

Database Open Access

Image-derived cardiomegaly biomarker values for 96K chest X-rays in MIMIC-CXR/MIMIC-CXR-JPG

Benjamin Duvieusart, Felix Krones, Guy Parsons, et al.

Automatically extracted cardiomegaly biomarkers - cardiothoracic ratio (CTR) and cardiopulmonary area ratio (CPAR) - for all posterior-anterior chest x-ray scans in MIMIC-CXR/MIMIC-CXR-JPG.

mimic-cxr biomarkers cpar ctr cardiomegaly

Published: Aug. 23, 2024. Version: 1.0.0

Database Open Access

Surface electromyographic signals collected during long-lasting ground walking of young able-bodied subjects

Francesco Di Nardo, Christian Morbidoni, Sandro Fioretti

The dataset is composed of long-lasting surface electromyographic (sEMG) signals recorded from ten muscles during ground walking of 31 young able-bodied subjects in Movement Analysis Lab, Università Politecnica delle Marche, Ancona, Italy.

biomedical signals muscle recruitment surface emg signal walking gait analysis

Published: Jan. 9, 2024. Version: 1.0.1

Visualize waveforms