Early Electrocardiography
Measurement and recording of heart electrical signals using sensitive instruments and clinical interpretation.
Core metadata
- ID: electrocardiography_early
- Era: Industrial
- First known date: 1903 (exact)
- Region: Leiden, Netherlands
- Review status: source_checked
- Maturity: N/A
Prerequisites
- Electricity (electricity)
- Laboratory Diagnostic Medicine (laboratory_diagnostic_medicine)
- Radiology Departments (radiology_departments)
Dependents
Fields
- None.
Node sources
- Willem Einthoven (National High Magnetic Field Laboratory, 2026, museum) • Supports: node
Locator: The National MagLab states that Einthoven's string galvanometer was key to his invention of the electrocardiograph in 1903. - The Invention of Electrocardiography Machine (National Library of Medicine / PMC, 2019, review) • Supports: node
Locator: The review notes Einthoven published a preliminary string-galvanometer report in 1901 and a detailed 1903 description including ECG recordings.
Prerequisite edge evidence
Edge/source evidence summary:
- Prerequisite edges: 3
- Average edge confidence: 68%
- Prerequisite sources: 1
- expert_inference: 3
| Prerequisite | Type | Confidence | Evidence level | Note | Sources |
|---|---|---|---|---|---|
| Electricity (electricity) | enabling | 68% | expert_inference | Electricity provides a capability that enables this technology without being the only possible path. |
|
| Laboratory Diagnostic Medicine (laboratory_diagnostic_medicine) | enabling | 68% | expert_inference | Laboratory Diagnostic Medicine provides a capability that enables this technology without being the only possible path. | No sources recorded. |
| Radiology Departments (radiology_departments) | enabling | 68% | expert_inference | Radiology Departments provides a capability that enables this technology without being the only possible path. | No sources recorded. |
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