Cardiography


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cardiography

[‚kärd·ē′äg·rə·fē]
(medicine)
Analysis of heart movements in the cardiac cycle by means of electronic instruments, especially by tracings.

Cardiography

 

the recording of the heart’s contractions; in the broader sense, all methods of registering the heart’s contractile functions.

The first cardiogram (more precisely, a mechanocardiogram) was taken by the French physiologist E. Marey in 1863 by recording the cardiac impulse at the fifth intercostal space. An impulse results when the heart contracts from an ellipsoid, becoming rounder and thicker, its apex rising and pressing against the chest wall. The irregularity of individual waves on the cardiogram and the difficulty of interpretation led to the replacement of the method by more refined ones: ultrasound impulse cardiography, ballistocardiography, dynamocardiography, kinetocardi-ography, seismokymography, roentgenokymography, electro-kymography, and phonocardiography.

I. N. D’IAKONOVA

References in periodicals archive ?
The trial, conducted at nine sites from March to October 2006, measured the diagnostic accuracy provided by adding acoustic cardiography to an emergency medicine physician's tools.
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Abnormal impedance cardiography predicts symptom severity in chronic fatigue syndrome.
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Masood said that modern equipment of X-ray, ultrasound, MRI, Mammography, Echo Cardiography and ECG etc have been made available.
Nasdaq:SONO), the world leader and specialist in bedside and point-of-care ultrasound, today introduced the new BioZ[R] Cardio Profile system with impedance cardiography (ICG) technology for non-invasively monitoring a patient's hemodynamic profile in the hospital.
Tenders are invited for Portable Echo Cardiography Machines As Per Annexure Ii