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The Capital Region of Denmark - a part of Copenhagen University Hospital
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Lung density: clinical method for quantitation of pulmonary congestion and edema

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  • E S Garnett
  • C E Webber
  • G Coates
  • W P Cockshott
  • C Nahmias
  • N Lassen
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The density of a defined volume of the human lung can be measured in vivo by a new noninvasive technique. A beam of gamma-rays is directed at the lung and, by measuring the scattered gamma-rays, lung density is calculated. The density in the lower lobe of the right lung in normal man during quiet breathing in the sitting position ranged from 0.25 to 0.37 g.cm-3. Subnormal values were found in patients with emphsema. In patients with pulmonary congestion and edema, lung density values ranged from 0.33 to 0.93 g.cm-3. The lung density measurement correlated well with the findings in chest radiographs but the lung density values were more sensitive indices. This was particularly evident in serial observations of individual patients.
Original languageEnglish
JournalC M A J
Volume116
Issue number2
Pages (from-to)153-4
Number of pages2
ISSN0820-3946
Publication statusPublished - 22 Jan 1977

    Research areas

  • Absorptiometry, Photon, Adult, Aged, Heart Failure, Humans, Lung, Middle Aged, Pulmonary Edema, Pulmonary Emphysema

ID: 39053171