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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1993-6-30
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pubmed:abstractText |
The performance of a novel bronchoscopic fluorescence imaging system was compared with conventional white light bronchoscopy with a data base of 328 biopsy-confirmed sites from 53 patients and 41 volunteers. The two methods were found to have the same specificity (94%); however, the sensitivity of the fluorescence system (72.5%) was found to be 50% greater than that of the white light bronchoscopy (48.4%) in detecting dysplasia and carcinoma in situ. The fluorescence system uses a nonlinear discriminant function combining the red and green image intensity values to form a pseudoimage that, when displayed on an RGB monitor, allows the detection and delineation of abnormal areas. In 15% of the patients with lung cancer, synchronous carcinoma in situ was found in addition to the large invasive cancer. Of the current smokers in this study, 40% had moderate dysplasia and 12% had severe dysplasia. For the ex-smokers 25% had moderate dysplasia, 6% had severe dysplasia, and 13% had carcinoma in situ. Fluorescence imaging may become an important adjunct to conventional bronchoscopic examination to improve our ability to diagnose and stage lung cancer more accurately.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0022-5223
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
105
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1035-40
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:8501931-Aged,
pubmed-meshheading:8501931-Bronchoscopy,
pubmed-meshheading:8501931-Carcinoma in Situ,
pubmed-meshheading:8501931-Fiber Optic Technology,
pubmed-meshheading:8501931-Fluorescence,
pubmed-meshheading:8501931-Fluorometry,
pubmed-meshheading:8501931-Humans,
pubmed-meshheading:8501931-Image Processing, Computer-Assisted,
pubmed-meshheading:8501931-Lung,
pubmed-meshheading:8501931-Lung Neoplasms,
pubmed-meshheading:8501931-Middle Aged,
pubmed-meshheading:8501931-Sensitivity and Specificity
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pubmed:year |
1993
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pubmed:articleTitle |
Detection of dysplasia and carcinoma in situ with a lung imaging fluorescence endoscope device.
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pubmed:affiliation |
Cancer Imaging, B.C. Cancer Research Center, Vancouver, Canada.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
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