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  • AEROSPACE MEDICINE  (2)
  • 2000-2004
  • 1975-1979  (2)
  • 1
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    Effect of prolonged space flight on cardiac function and dimensions (1977)
    In:  CASI
    Details
    Publication Date: 2006-01-16
    Description: By taking advantage of the capabilities of echocardiography to measure noninvasively left ventricular volume, stroke volume, and ejection fraction, and of the fact that the astronauts were routinely subjected to lower body negative pressure (whereby cardiac filling is progressively decreased), it was possible to construct classic ventricular function curves noninvasively, thereby obviating the difficulties encountered in comparing cardiac function at different end-diastolic volumes preflight and postflight. In this manner, the effect of an 84-day period of weightlessness on cardiac structure and function was evaluated in the Skylab 4 astronauts.
    Keywords: AEROSPACE MEDICINE
    Type: NASA., JSC Biomed. Results from Skylab; p 366-371
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Sector-scanning echocardiography (1975)
    In:  Other Sources
    Details
    Publication Date: 2019-01-25
    Description: The mechanical sector scanner is described in detail, and its clinical application is discussed. Cross sectional images of the heart are obtained in real time using this system. The sector scanner has three major components: (a) hand held scanner, (b) video display, and (c) video recorder. The system provides diagnostic information in a wide spectrum of cardiac diseases, and it quantitates the severity of mitral stenosis by measurement of the mitral valve orifice area in diagnosing infants, children and adults with cyanotic congenital heart disease.
    Keywords: AEROSPACE MEDICINE
    Type: Soc. of Photo-Opt. Instrumentation Engrs. Cardiovascular Imaging and Image Processing; p 25-29
    Format: text
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    NASA TECHNICAL REPORTS
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