A COMPARISON OF SIMULTANEOUS POLYGRAPH AND MICROGRAPH TRACINGS

Autor:	Frank S. Meara, Albert C. Crehore, T. Homer Coffen
Rok vydání:	2009
Předmět:	Polygraph Micrograph business.industry Heart sounds Immunology Immunology and Allergy Medicine Electrocardiographic recorders Computer vision Artificial intelligence business Article
Zdroj:	The Journal of Experimental Medicine
ISSN:	0022-1007
Popis:	From a study of the accompanying tracings we may conclude that: 1. The delicate mechanism of the micrograph registers the movements in the heart and blood-vessels more accurately than does the polygraph. 2. The inertia of the polygraph lever and diaphragm distorts the tracing. The difference between the results obtained with the two instruments is shown by the records made simultaneously with the micrograph and the polygraph. 3. The micrograph is particularly useful for recording heart sounds. Some records illustrating this are shown. We are directing especial attention to this and will report the results in a subsequent paper. 4. While the micrograph will not supersede the polygraph or electrocardiograph, we feel that it has distinct possibilities as a clinical instrument.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b67eed5dcaa7796321f28c42151124a https://pubmed.ncbi.nlm.nih.gov/19867573 Zobrazit plný text záznamu