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- W1592014654 abstract "Article1 September 1933RESEARCH IN ELECTROCARDIOGRAPHYWILLIAM D. REID, M.D., F.A.C.P., SAMUEL H. CALDWELL, Sc.D.WILLIAM D. REID, M.D., F.A.C.P.Search for more papers by this author, SAMUEL H. CALDWELL, Sc.D.Search for more papers by this authorAuthor, Article, and Disclosure Informationhttps://doi.org/10.7326/0003-4819-7-3-369 SectionsAboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinkedInRedditEmail ExcerptA modified apparatus1 and technic2 for obtaining electrocardiograms was reported in 1932. This paper reports the further development of the apparatus and its use in electrocardiographic research.THE NEED FOR BETTER APPARATUSThe introduction of the string galvanometer by Einthoven in 1903 marked a great advance in the methods of recording rapid changes of small electric currents. In most electrical engineering applications, however, the string galvanometer has been largely displaced by the oscillograph. The latter instrument although by no means as sensitive as the string galvanometer is of a more sturdy design and can be adapted to give larger scale...Bibliography1. CALDWELLOLERPETERS SHCBJC: An improved form of electrocardiograph, Rev. Scient. Instruments, 1932, iii, 277-286. CrossrefGoogle Scholar2. REID WD: Preliminary report on the use of an improved form of electrocardiograph, Jr. Lab. and Clin. Med., 1932, xvii, 804-812. Google Scholar3. WIGGERS CJ: Principles and practice of electrocardiography, 1929, C. V. Mosby Company, St. Louis, p. 32. Google Scholar4. ERNSTENELEVINE ACSA: A comparison of records taken with the Einthoven string galvanometer and the amplifier-type electrocardiograph, Am. Heart Jr., 1929, iv, 725-731. CrossrefGoogle Scholar This content is PDF only. To continue reading please click on the PDF icon. Author, Article, and Disclosure InformationAffiliations: Cambridge, Massachusetts*Read at the Montreal Meeting of the American College of Physicians, February 10, 1933.From the Evans Memorial of the Massachusetts Memorial Hospital, Boston, and the Massachusetts Institute of Technology, Cambridge, Massachusetts. PreviousarticleNextarticle Advertisement FiguresReferencesRelatedDetails Metrics Cited byFrequency content and characteristics of ventricular conductionBIBLIOGRAPHYElectrocardiography Subtraction Method of Detecting Low-Amplitude, High-Frequency Components (L-HFCs) Within the QRS Complex of Patients With Ventricular Tachycardia.Sampling rates required for digital recording of intracellular and extracellular cardiac potentials.The high frequency electrocardiogram in coronary artery diseaseNotching of the QRS complex in high frequency electrocardiograms of normal children and in children with rheumatic feverThe Anatomic Basis for High-Frequency Components in the ElectrocardiogramOn QRS amplitude and other errors produced by direct-writing electrocardiographsA basis for observer variation in electrocardiographic interpretationCharacteristics of the Frequency Spectrum in the Normal Electrocardiogram and in Subjects Following Myocardial InfarctionFrequency Analysis of the ElectrocardiogramFurther Studies in High Fidelity Electrocardiography: Myocardial InfarctionHigh fidelity electrocardiography: Further studies including the comparative performance of four different electrocardiographsThe Value of High Fidelity Electrocardiography Using the Cathode Ray Oscillograph and an Expanded Time ScaleIntracardiac and Intravascular Potentials Resulting from Electrical Activity of the Normal Human HeartAutomaticity in transplanted Anuran lymph hearts 1 September 1933Volume 7, Issue 3Page: 369-380KeywordsElectrocardiography Issue Published: 1 September 1933 PDF downloadLoading ..." @default.
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