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Literature DB >> 3706856

Contributions to the impedance cardiogram waveform.

J Kosicki, L H Chen, R Hobbie, R Patterson, E Ackerman.

Abstract

We have developed a cylindrically symmetric model with which to study what physiologic variables might contribute to the impedance cardiogram signal. We find the major contributions in this model to be due to dilation of the aorta and carotid arteries, changes in conductivity of blood in these same vessels due to red cell reorientation during flow, changes in the conductivity of the lungs, and changes in heart volume. The calculations suggest that the popular equation used to determine stroke volume from thoracic impedance data is not accurate under all conditions of the circulatory system.

Entities: Disease

Mesh：

Year: 1986 PMID： 3706856 DOI： 10.1007/bf02364649

Source DB: PubMed Journal: Ann Biomed Eng ISSN： 0090-6964 Impact factor: 3.934

13 in total

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Authors: K Sakamoto; K Muto; H Kanai; M Iizuka
Journal: Med Biol Eng Comput Date: 1979-11 Impact factor: 2.602

2. Right atrium and superior vena cava flow velocity in man measured with the Doppler-Catheter flowmeter-telemetry system.

Authors: A Benchimol; H F Stegall; J L Gartlan; E C Barreto; M R Goldstein; J Sandoval
Journal: Am J Med Date: 1970-03 Impact factor: 4.965

3. Evaluation of thoracic impedance plethysmography as an indicator of stroke volume in man.

Authors: R J Bache; A Harley; J C Greenfield
Journal: Am J Med Sci Date: 1969-08 Impact factor: 2.378

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Authors: C E Rackley; V S Behar; R E Whalen; H D McIntosh
Journal: Am Heart J Date: 1967-12 Impact factor: 4.749

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Authors: W G Kubicek; J N Karnegis; R P Patterson; D A Witsoe; R H Mattson
Journal: Aerosp Med Date: 1966-12

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Authors: B J Rubal; L E Baker; T C Poder
Journal: Med Biol Eng Comput Date: 1980-09 Impact factor: 2.602

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Authors: J C Miller; S M Horvath
Journal: Psychophysiology Date: 1978-01 Impact factor: 4.016

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Authors: R P Patterson
Journal: Med Biol Eng Comput Date: 1985-09 Impact factor: 2.602

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Authors: H J Keim; J M Wallace; H Thurston; D B Case; J I Drayer; J H Laragh
Journal: J Appl Physiol Date: 1976-11 Impact factor: 3.531

10. Evaluation of the elasticity and characteristic impedance of the ascending aorta in man.

Authors: J P Merillon; G Motte; J Fruchaud; C Masquet; R Gourgon
Journal: Cardiovasc Res Date: 1978-07 Impact factor: 10.787

3 in total

1. The influence of left lateral position on cardiac output changes after head up tilt measured by impedance cardiography.

Authors: M Kamenik
Journal: J Clin Monit Comput Date: 1999-12 Impact factor: 2.502

2. Evaluation of a new advanced thoracic bioimpedance device for estimation of cardiac output.

Authors: D G Haryadi; D R Westenskow; L A Critchley; S I Schookin; V G Zubenko; K R Beliaev; A A Morozov
Journal: J Clin Monit Comput Date: 1999-02 Impact factor: 2.502

3. Stroke volume equation for impedance cardiography.

Authors: D P Bernstein; H J M Lemmens
Journal: Med Biol Eng Comput Date: 2005-07 Impact factor: 2.602

3 in total