plethysmography
(noun)
The diagnostic use of a plethysmograph to measure changes in volume within an organ or whole body.
Examples of plethysmography in the following topics:
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Factors Affecting Pulmonary Ventilation: Airway Resistance
- Airway resistance can be indirectly measured with body plethysmography, which is an instrument used for measuring changes in volume within a structure, such as the airways.
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Lung Capacity and Volume
- Therefore measurement of the residual volume has to be done via indirect methods such as radiographic planimetry, body plethysmography, closed circuit dilution (including the helium dilution technique), and nitrogen washout.