Linked Life Data

7237921

Source:http://linkedlifedata.com/resource/pubmed/id/7237921

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1981-8-27
pubmed:abstractText
1. Nineteen patients (three normal subjects, at 16 patients with chronic airway disease) were investigated with radionuclide lung-imaging and pulmonary function tests. 2. There was a statistically significant correlation between the ratio of residual volume to total lung capacity and alveolar dead-space ventilation for nitrogen as a percentage of alveolar ventilation (an index of gas mixing inefficiency); rs = 0.54, P less than 0.05. 3. There were statistically significant associations between an abnormal ventilation or perfusion radionuclide lung image and (a) the ratio of residual volume to total lung capacity and (b) the alveolar dead-space ventilation for nitrogen as a percentage of alveolar ventilation. 4. The radionuclide counts from the posterior images were normalized for lung size and injected dose; perfusion counts were then subtracted from ventilation counts at locations from the top to the bottom of the lungs. 5. There was a statistically significant association between low ventilation minus perfusion areas and arterial hypoxia. 6. There was a statistically significant association between high ventilation minus perfusion areas and an increased alveolar dead-space ventilation for carbon dioxide as a percentage of alveolar ventilation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0143-5221
pubmed:author
pubmed:issnType
Print
pubmed:volume
60
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
17-23
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1981
pubmed:articleTitle
Comparison of ventilation/perfusion lung-imaging and dead-space measurements in airway disease.
pubmed:publicationType
Journal Article, Comparative Study