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Analysis of heart movements in the cardiac cycle by means of electronic instruments, especially by tracings.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



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.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
"Through its courts," ICG adds, "Al-Shabaab upholds tenets of Islamic family law that, to some degree, protect women's rights in matters such as divorce and inheritance in a manner the official justice system does not.
Founded in 2003, ICG has undergone accelerated growth over the past five years to become one of Hong Kong's largest multi-cloud system integrators.
Two or more cords are seen connecting MCG/ VG to ICG. The anterior cord, ansa subclavia descends down looping the first part of the subclavian artery in close contact with the cervical pleura.
used ICG fluorescence imaging angiography (SPY system; Novadaq Technologies, Inc, Concord, Ontario, Canada) to assess the integrity of vascular anastomoses in kidney and liver transplantations [9].
Coast Guard District Headquarters at Kochi and Kavaratti were directed to provide necessary assistance to stranded fishermen and shepherd them to shelter areas, said the ICG officer.
ICG also operates the purpose-built Hog's Head Inn in Alnwick, the Bamburgh Castle Inn in Seahouses, the Lindisfarne Inn at Beal, the King's Head Inn at Newton in North Yorkshire and the Seaton Lane Inn at Seaton, near Sunderland.
Reliable sources have confirmed that the two agencies sparred for access to ICG in- shore patrol vessel ( IPV) Rajratan which was the craft which intercepted the Pakistani fishing vessel and its crew on the intervening night of December 31, 2014- January 1, 2015.
The purpose of the study is to report on our experience in using ICG during removal of pediatric orbital cysts, raising the awareness of surgeons for the possibility of its use during such surgery.
ANKARA (CyHAN)- The International Crisis Group (ICG) has expressed concerns on the rising costs of the Syrian crisis for Turkey and said the Turkish government and the international community should find a long-term arrangement to care for the Syrians taking refuge in the country.
THE INTERNATIONAL Crisis Group (ICG), in a departure from its usual recommendations on ways to secure a federal Cyprus settlement, has in its latest report, recommended instead looking at a negotiated partition.
In a report released today, the International Crisis Group (ICG) said that the root causes of the conflict are still in existence "and in some respects are more acute".
ICG Group is a private equity and venture capital firm specializing in growth capital, acquisitions, and mid and late venture investments in public and private companies.