Accession Number : AD0477269


Title :   TIME-BASE EXPANSION AS APPLIED TO VECTORCARDIOGRAPHY,


Corporate Author : SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX


Personal Author(s) : Peters ,Wendell R. ; Cole,Robert E.


Report Date : DEC 1965


Pagination or Media Count : 7


Abstract : A technic is described for displaying vectorcardiograms with greater precision and clarity than is possible with most methods in use. This is accomplished by using a magnetic recorder-reproducer for time-base expansion of recorded VCG data. With time expansion, recorded data appear to be lower in frequency and can be graphically displayed on an X-Y recorder. Illustrations showing the vectorcardiographic loops obtained are contrasted to a conventional recording technic. (Author)


Descriptors :   (*ELECTROCARDIOGRAPHY, *DISPLAY SYSTEMS), RECORDING SYSTEMS, MEDICAL EQUIPMENT, OSCILLOSCOPES, CIRCUITS, MAGNETIC TAPE, CARDIOGRAPHY, HEART, TIME, REPRODUCTION, ERRORS


Subject Categories : RECORDING AND PLAYBACK DEVICES
      MEDICAL INSTRUMENTATION AND BIOENGINEERING


Distribution Statement : APPROVED FOR PUBLIC RELEASE