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Article: Pulmonary emphysema: Comparison of preoperative quantitative CT and physiologic index values with clinical outcome after lung-volume reduction surgery

TitlePulmonary emphysema: Comparison of preoperative quantitative CT and physiologic index values with clinical outcome after lung-volume reduction surgery
Authors
KeywordsComputed tomography (CT), quantitative
Emphysema, pulmonary
Lung, CT
Lung, surgery
Issue Date1997
Citation
Radiology, 1997, v. 205, n. 1, p. 235-242 How to Cite?
AbstractPURPOSE: To compare quantitative computed tomographic (CT) and preoperative physiologic values in emphysema with outcome after lung-volume reduction surgery. MATERIALS AND METHODS: In 46 patients, emphysema was quantified by measuring lung attenuation on preoperative CT scans. Quantitative CT and preoperative physiologic values and postoperative outcomes (1-second forced expiratory volume, PaO2, and 6-minute walk distance) were compared. RESULTS: Moderately strong correlations were found between several quantitative CT and preoperative physiologic values (/r/ = .29-.58, P < .05) and several quantitative CT and outcome measures (/r/ = .31-.47, P < .05). With stratification, postoperative outcome was better with mean lung attenuation greater than -900 HU; 75% or greater of upper lung below -900 HU (emphysema index); greater than 25% of lung below -960 HU (severe emphysema index); ratio of upper- and lower-lung emphysema indexes 1.5 or greater; volume of normally attenuated lung (-850 to -701 HU) greater than 1 L; and full width at half maximum of attenuation-frequency distribution 80 HU or less. Differences in outcome measures between groups stratified with quantitative CT values were often two- to threefold; patients with greater numbers of favorable quantitative CT values had better outcome. Correlations between preoperative physiologic measures and outcome were few. CONCLUSION: In emphysema, quantitative CT values correlate with outcome. Quantitative assessment of emphysema in candidates for lung-volume reduction surgery is potentially useful.
Persistent Identifierhttp://hdl.handle.net/10722/315910
ISSN
2023 Impact Factor: 12.1
2023 SCImago Journal Rankings: 3.692
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorGierada, David S.-
dc.contributor.authorSlone, Richard M.-
dc.contributor.authorBae, Kyongtae T.-
dc.contributor.authorYusen, Roger D.-
dc.contributor.authorLefrak, Stephen S.-
dc.contributor.authorCooper, Joel D.-
dc.date.accessioned2022-08-24T15:48:34Z-
dc.date.available2022-08-24T15:48:34Z-
dc.date.issued1997-
dc.identifier.citationRadiology, 1997, v. 205, n. 1, p. 235-242-
dc.identifier.issn0033-8419-
dc.identifier.urihttp://hdl.handle.net/10722/315910-
dc.description.abstractPURPOSE: To compare quantitative computed tomographic (CT) and preoperative physiologic values in emphysema with outcome after lung-volume reduction surgery. MATERIALS AND METHODS: In 46 patients, emphysema was quantified by measuring lung attenuation on preoperative CT scans. Quantitative CT and preoperative physiologic values and postoperative outcomes (1-second forced expiratory volume, PaO2, and 6-minute walk distance) were compared. RESULTS: Moderately strong correlations were found between several quantitative CT and preoperative physiologic values (/r/ = .29-.58, P < .05) and several quantitative CT and outcome measures (/r/ = .31-.47, P < .05). With stratification, postoperative outcome was better with mean lung attenuation greater than -900 HU; 75% or greater of upper lung below -900 HU (emphysema index); greater than 25% of lung below -960 HU (severe emphysema index); ratio of upper- and lower-lung emphysema indexes 1.5 or greater; volume of normally attenuated lung (-850 to -701 HU) greater than 1 L; and full width at half maximum of attenuation-frequency distribution 80 HU or less. Differences in outcome measures between groups stratified with quantitative CT values were often two- to threefold; patients with greater numbers of favorable quantitative CT values had better outcome. Correlations between preoperative physiologic measures and outcome were few. CONCLUSION: In emphysema, quantitative CT values correlate with outcome. Quantitative assessment of emphysema in candidates for lung-volume reduction surgery is potentially useful.-
dc.languageeng-
dc.relation.ispartofRadiology-
dc.subjectComputed tomography (CT), quantitative-
dc.subjectEmphysema, pulmonary-
dc.subjectLung, CT-
dc.subjectLung, surgery-
dc.titlePulmonary emphysema: Comparison of preoperative quantitative CT and physiologic index values with clinical outcome after lung-volume reduction surgery-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1148/radiology.205.1.9314991-
dc.identifier.pmid9314991-
dc.identifier.scopuseid_2-s2.0-0030867732-
dc.identifier.volume205-
dc.identifier.issue1-
dc.identifier.spage235-
dc.identifier.epage242-
dc.identifier.isiWOS:A1997XX26600041-

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