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 ?
Unlike other surrogates, a critically important aspect of the PWV is that "diastolic variability [arterial flexibility/compliance] in the plethysmograph is independent of arterial pressure.
The detection of peripheral venous pulsation using the pulse oximeter as a plethysmograph.
The body plethysmograph measures the volume decrease of the chest, which exceeds the volume of gas exhaled during flow , the difference being the compression of the alveolar gas (7).
A penile plethysmograph is a device attached to the penis that measures sexual response to various stimulators.
We excluded the first and last 60 min of data per day, when animal movement interfered with plethysmograph readings.
According to Adams, penile plethysmographs are frequently used to study the sexual response of rapists and other sexual aggressors, and such studies are easy to conduct, inexpensive, and considered highly accurate.
We recorded plethysmograph data by a data-loger and analyzed each curve with a computer to calculate the parameters.