plethysmograph

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plethysmograph

 [plĕ-thiz´mo-graf]
any device for measuring and recording variations in the volume of an organ, part, or limb.
body plethysmograph a device used in pulmonary function tests to measure parameters such as functional residual capacity (FRC) and lung-thorax compliance (CLT). It consists of a large box in which the subject can be sealed so that volume of the thorax can be determined from pressure changes in the box.

ple·thys·mo·graph

(ple-thiz'mō-graf),
A device for measuring and recording changes in volume of a part, organ, or whole body.
[G. plēthysmos, increase, + graphō, to write]

plethysmograph

/ple·thys·mo·graph/ (plĕ-thiz´mo-grah) an instrument for recording variations in volume of an organ, part, or limb.

plethysmograph

(plĕ-thĭz′mə-grăf′, plə-)
n.
An instrument that measures variations in the size of an organ or body part on the basis of the amount of blood passing through or present in the part.

ple·thys′mo·graph′ic adj.
pleth′ys·mog′ra·phy (plĕth′ĭz-mŏg′rə-fē) n.

plethysmograph

[pləthiz′məgraf′]
an instrument for measuring and recording changes in the size and volume of extremities and organs by measuring changes in their blood volume. plethysmographic, adj.

ple·thys·mo·graph

(plĕ-thiz'mŏ-graf)
A device for measuring and recording changes in volume of a part, organ, or whole body.
[G. plēthysmos, increase, + graphō, to write]

plethysmograph

any device for measuring and recording variations in the volume of an organ, part or limb.

body plethysmograph
a device used in pulmonary function tests to measure parameters such as functional residual capacity (FRC) and lung-thorax compliance (CLT). It consists of a large box in which the subject can be sealed so that volume of the thorax can be determined from pressure changes in the box while the lung volume and gas pressure in the lungs are measured by spirometry.
References in periodicals archive ?
There were no comparable differences for any of the plethysmographic values (FVC p, [FEV.
The comparison of the spirometric and plethysmographic measurements revealed a significant difference in all expiratory flow rates within 2h of testing after the inhalation of formoterol and tiotropium.
Once a plethysmographic waveform was obtained in our patient, it was also possible to estimate the systolic blood pressure.
The paw volume was determined using the plethysmographic method at 4, 6, 8, 10, 12 and 24h after nystatin injection.
Plethysmographic and acoustic waveforms for real-time or playback patient assessment
Impact of PEEP on Perfusion Index and Plethysmographic Variability Index(1)-A1068, Presented: October 20, 2008, 2:00-4:30 p.
PVI is an index automatically derived from the Masimo plethysmographic waveform, which has been demonstrated to noninvasively assess fluid responsiveness in mechanically ventilated patients and can help clinicians assess if a patient's cardiac function is compromised.
PI is a measurement featured in the Masimo Rainbow SET technology platform that reflects the real-time changes in peripheral blood flow at the monitored site and the strength of the plethysmographic signal displayed on the pulse oximeter.
Pleth Variability Index (PVI) is a noninvasive measurement that quantifies changes in the plethysmographic waveform derived from pulse oximetry, and may provide clinicians with a noninvasive way to monitor functional hemodynamics in their patients.
June 19 /PRNewswire/ -- Masimo, the inventor of Pulse CO-Oximetry and Read-Through Motion and Low Perfusion pulse oximetry, reported that new independent studies presented at a symposium during the European Society of Anaesthesia in Munich, Germany last week indicated that Masimo's Plethysmograph Variability Index (PVI), a noninvasive measurement that quantifies changes in the plethysmographic waveform derived from pulse oximetry, can provide clinicians with a noninvasive way to monitor functional hemodynamics in their patients.
of the Department of Anesthesiology at Yale University, found that the Max-Fast forehead sensor produced corrupt plethysmographic waveforms when used on patients in the supine position.