Plethysmography is a test used to measure changes in blood flow or air volume in different parts of the body. It may be done to check for blood clots in the arms and legs, or to measure how much air you can hold in your lungs.
Penile pulse volume recording is a type of plethysmography done on the penis to check for causes of erectile dysfunction.
See also:
Alternative NamesRespiratory inductance plethysmography; Penile pulse volume recording
ReferencesLue TF, Broderick GA. Evaluation and nonsurgical management of erectile dysfunction and premature ejaculation. In: Wein AJ, ed. Campbell-Walsh Urology. 9th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 22.
J. H. Seipel has written: 'Cranial impedance plethysmography' -- subject(s): Cerebrovascular disease, Rheoencephalography, Impedance plethysmography
94750 since the previous code 93722 was deleted
Deep vein thrombosis can be detected through venography and radionuclide venography, Doppler ultrasonography, and impedance plethysmography.
Full body plethysmography is a technique used to measure lung volumes, airway resistance, and other respiratory parameters. It involves a person sitting in a sealed box and breathing in and out while the pressure changes are recorded. This method provides detailed information about lung function and can help diagnose respiratory conditions such as asthma or chronic obstructive pulmonary disease (COPD).
93965 - Non-invasive physiologic studies of extremity veins, complete bilateral study (eg, Doppler waveform analysis with responses to compression and other maneuvers, phleborheography, impedance plethysmography)
93965 - Non-invasive physiologic studies of extremity veins, complete bilateral study (eg, Doppler waveform analysis with responses to compression and other maneuvers, phleborheography, impedance plethysmography)
A person's depth of breathing can be accurately measured using a spirometer, which quantifies the volume of air inhaled and exhaled during respiration. This device records various aspects of breathing, including tidal volume, which specifically indicates the amount of air breathed in or out during a normal breath. Additionally, other methods like plethysmography or respiratory inductance plethysmography can also assess breathing depth by measuring changes in chest and abdominal circumference. These techniques provide a comprehensive evaluation of respiratory function.
Accurate body fat testing can be done using methods such as dual-energy X-ray absorptiometry (DXA), hydrostatic weighing, air displacement plethysmography (Bod Pod), and bioelectrical impedance analysis (BIA).
93922 Noninvasive physiologic studies of upper or lower extremity arteries, single level, bilateral (eg, ankle/brachial indices, Doppler waveform analysis, volume plethysmography, transcutaneous oxygen tension measurement) 93923 Noninvasive physiologic studies of upper or lower extremity arteries, multiple levels or with provocative functional maneuvers, complete bilateral study (eg, segmental blood pressure measurements, segmental Doppler waveform analysis, segmental volume plethysmography, segmental transcutaneous oxygen tension measurements, measurements with postural provocative tests, measurements with reactive hyperemia)
Scientific methods for determining body composition include Dual-Energy X-ray Absorptiometry (DXA), bioelectrical impedance analysis (BIA), air displacement plethysmography (Bod Pod), and underwater weighing. These methods measure the amount of fat, muscle, bone, and water in the body to provide accurate insight into an individual's overall body composition.
Residual volume cannot be measured with a spirometer because a spirometer measures the volume of air that can be inhaled or exhaled, but it cannot measure the air that remains in the lungs after maximal exhalation. This leftover air, known as residual volume, is not accessible for measurement since it is trapped in the alveoli and airways. To assess residual volume, other techniques like body plethysmography or gas dilution methods are used.
Thoracic gas volume can be measured using techniques such as helium dilution or nitrogen washout. These methods involve introducing a known volume of inert gas into the lungs and measuring the decrease in concentration over time to calculate the thoracic gas volume. Alternatively, thoracic gas volume can also be estimated using body plethysmography, which determines lung volume changes during breathing.