The Journal of Experimental Medicine
Torrey Pines Biolabs
  Home | Help | Feedback | Subscriptions | Archive | Search | Table of Contents
This Article
Right arrow Full Text (PDF, 413K)
Right arrow Alert me when this article is cited
Services
Right arrow Email this article
Right arrow Similar articles in this journal
Right arrow Alert me to new content in the JEM
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Meara, F. S.
Right arrow Articles by Crehore, A. C.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Meara, F. S.
Right arrow Articles by Crehore, A. C.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Facebook   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?
The Journal of Experimental Medicine, Vol 16, 280-290, Copyright, 1912, by The Rockefeller Institute for Medical Research New York

ARTICLE

A COMPARISON OF SIMULTANEOUS POLYGRAPH AND MICROGRAPH TRACINGS

Frank S. Meara M.D., Ph.D.1, T. Homer Coffen M.D.1, and Albert C. Crehore Ph.D.1

1 From the Department of Therapeutics of the Cornell University Medical College, New York.

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.

 Submitted on May 18, 1912


Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Facebook Facebook   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?




  Home | Help | Feedback | Subscriptions | Archive | Search
TABLE OF CONTENTS