Abstract
Many years ago Bardeen introduced in this country a technic for measuring the size of the heart by means of long-distance roentgenograms. Four points are involved: A knowledge of the approximate amount of triangular distortion remaining even for distances of 2 meters or greater. This is usually less than 5 per cent. A method of drawing in, more or less arbitrarily, the upper and lower borders, thus completing the outline of an area bounded on either side by the edges of the heart silhouetted against air-containing lung. Adaptation of a simple engineering instrument for the measurement of the area thus outlined. The establishment of tables showing the normal range of the relationship between this area and certain body measurements in normal subjects. Nine years ago one of us, working with Eyster at the University of Wisconsin, amplified Bardeen's tables of the normal size of the heart of adults by developing
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: JAMA: The Journal of the American Medical Association
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
