Linked Life Data

10410540

Source:http://linkedlifedata.com/resource/pubmed/id/10410540

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1999-9-17
pubmed:abstractText
The percentage of the low attenuation area (LAA%) is understood to be the most accurate index in quantifying emphysema by computed tomography (CT). To date, CT scanners with enhanced post-processing programs have been used for measurements of LAA%. In this study, we sought develop a method of LAA% determination using a conventional density mapping program for CTs and NIH Image, an image-analysis software package for personal computers. Our results for overall LAA%, together with the correlations between overall LAA% and pulmonary function tests, agreed well with the findings of earlier reports. In reproducibility trials utilizing our method interoperator error for LAA% was within +/- 2%. A phantom experiment indicated that there was little difference between LAA% values obtained by this method and the values obtained by direct CT measurements. Therefore, we concluded that this method is sufficiently reliable for clinical use and capable of facilitating LAA% measurements with CT scanners that are not equipped with enhanced post-processing software.
pubmed:language
jpn
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1343-3490
pubmed:author
pubmed:issnType
Print
pubmed:volume
37
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
380-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
[Utilization of NIH image for quantification of emphysema by computed tomography].
pubmed:affiliation
Third Department of Internal Medicine, Faculty of Medicine, Tottori University, Japan.
pubmed:publicationType
Journal Article, English Abstract