Dataset Structure
Interactive file-tree of the MIMIC-IV ECG dataset directory. Click any folder node to expand or collapse its children.
Dataset Summary
MIMIC-IV ECG Diagnostic Electrocardiogram Matched Subset v1.0 — Beth Israel Deaconess Medical Center
Record Coverage
How many records from the canonical list appear in each data source.
Temporal Distribution
ECG study counts over time. Note: MIMIC-IV dates are shifted for de-identification — use relative patterns only.
Studies per Patient
Distribution of how many ECG studies each patient has.
Measurement Quality
Missing value rates and summary statistics for machine_measurements.csv columns.
Interval Distributions
Histograms of RR, PR, QRS, and QT intervals derived from machine measurements.
Electrical Axis Distributions
Distribution of P-wave, QRS, and T-wave electrical axes (degrees, −180 to +180).
Machine Report Phrases
Most frequent diagnostic phrases from machine-generated ECG reports (report_0 … report_17 columns).
Carts & Equipment
ECG cart usage, bandwidth settings, and filter configurations.
Waveform–Note Links
Coverage of ECG records linked to MIMIC-IV clinical notes via waveform_note_links.csv.
Waveform Header Stats
Properties extracted from a random sample of .hea header files.
Lead Completeness
How many records are missing each standard lead, based on full .hea file scan.
Signal Quality
Flat-line, dropout, and clipping rates detected from a sampled set of .dat waveform files.