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 ?
de Vries, "Comparison between spot and band electrodes and between two equations for calculations of stroke volume by means of impedance cardiography," Medical and Biological Engineering and Computing, vol.
Currently, ultrasound cardiography (UCG), also known as echocardiography, is the leading tool for the diagnosis of fetal arrhythmia.
De Vries, "Impedance cardiography in cardiac surgery patients: Abnormal body weight gives unreliable cardiac output measurements," Acta Anaesthesiologica Scandinavica, vol.
Based on measured and cleaned extracted signals, the impedance cardiography (ICG) and impedance respirogram (IRG) signals have been modelled, and a corresponding bio-impedance signal simulator (BISS) has been developed to simulate electrical bio-impedance (EBI) signals for evaluating the performance of various signal processing algorithms on such signals.
The care plan included various activities within an interdisciplinary group that have proven to be effective, including follow-up calls (41), access to symptom assessment with an appointment on the same day, the use of impedance cardiography (26, 39), the analysis of the pulse wave (29), and telemetry (13).
The use of impedance cardiography in the diagnosis of various diseases
Beyond auscultation-acoustic cardiography in the diagnosis and assessment of cardiac disease.
Effect of mild, asymptomatic obstructive sleep apnea on daytime heart rate variability and impedance cardiography measurements.
Systolic and diastolic blood pressure and stroke volume were measured using impedance cardiography (Cardioscreen 1000, Niccomo PC, USA).
at MH Rawalpindi ,installed cardiac facilities like phono cardiography and others .He was the first teacher of medicine who introduced to us the new concepts of cardiology like opening snap, cardiac clicks and others .A thorough gentleman, he was humble to the core ,hardworking and totally devoted to his patients and students.
Facilities at the centre are backed by comprehensive diagnostics including a state-of-the-art laboratory, digital x-ray, high-end 4-D ultrasound, endoscopy suite with the latest gastroscope and colonoscope, ECG, echo cardiography and laser machine.
At least 12 doctors, including Dr Chandra, heart surgeon Dr Naresh Trehan and eco- cardiography expert R.