ballistocardiograph
Học thuậtThân thiện
Definition
- Noun:
- A medical instrument that measures the mechanical force of the heart's contractions and the volume of blood ejected by the ventricles. It operates by detecting and recording the body's minute recoil movements caused by the acceleration of blood with each heartbeat.
Usage Examples
- Noun:
- The physician used a ballistocardiograph to obtain a precise measurement of the patient's cardiac output.
- Early research into heart function often relied on data from a ballistocardiograph.
Advanced Usage
- The term is highly specialized and used almost exclusively in clinical, research, or historical medical contexts. It is often abbreviated as BCG in technical literature.
- The study compared BCG recordings with simultaneous ECG readings.
Variants and Related Words
- Ballistocardiography (n): The technique or process of recording the ballistic forces of the heart.
- Ballistocardiography provides a non-invasive method for assessing cardiac performance.
- Ballistocardiogram (n): The graphical record or tracing produced by a ballistocardiograph.
- The cardiologist analyzed the ballistocardiogram for abnormalities.
Synonyms
- BCG (n): The standard abbreviation.
- Cardiometer (n): A more general, less common term for an instrument measuring the heart's force or output. (Note: This is a broader, less precise synonym.)
Notes on Meaning
- The ballistocardiograph is a specific diagnostic tool, distinct from an electrocardiograph (ECG/EKG), which measures the heart's electrical activity. It measures the physical force.
- Its use has declined with the advent of more modern imaging and measurement techniques like echocardiography.
Noun
- a medical instrument that measures the mechanical force of cardiac contractions and the amount of blood passing through the heart during a specified period by measuring the recoil of the body as blood is pumped from the ventricles