{"id":"https://openalex.org/W1989105815","doi":"https://doi.org/10.1117/12.2082413","title":"Size-based emphysema cluster analysis on low attenuation area in 3D volumetric CT: comparison with pulmonary functional test","display_name":"Size-based emphysema cluster analysis on low attenuation area in 3D volumetric CT: comparison with pulmonary functional test","publication_year":2015,"publication_date":"2015-03-17","ids":{"openalex":"https://openalex.org/W1989105815","doi":"https://doi.org/10.1117/12.2082413","mag":"1989105815"},"language":"en","primary_location":{"id":"doi:10.1117/12.2082413","is_oa":false,"landing_page_url":"https://doi.org/10.1117/12.2082413","pdf_url":null,"source":{"id":"https://openalex.org/S183492911","display_name":"Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE","issn_l":"0277-786X","issn":["0277-786X","1996-756X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310315543","host_organization_name":"SPIE","host_organization_lineage":["https://openalex.org/P4310315543"],"host_organization_lineage_names":["SPIE"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"SPIE Proceedings","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100781644","display_name":"Min Ho Lee","orcid":"https://orcid.org/0000-0001-6343-7646"},"institutions":[{"id":"https://openalex.org/I40542001","display_name":"University of Ulsan","ror":"https://ror.org/02c2f8975","country_code":"KR","type":"education","lineage":["https://openalex.org/I40542001"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Minho Lee","raw_affiliation_strings":["Univ. of Ulsan (Korea, Republic of)"],"affiliations":[{"raw_affiliation_string":"Univ. of Ulsan (Korea, Republic of)","institution_ids":["https://openalex.org/I40542001"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004946653","display_name":"Namkug Kim","orcid":"https://orcid.org/0000-0002-3438-2217"},"institutions":[{"id":"https://openalex.org/I40542001","display_name":"University of Ulsan","ror":"https://ror.org/02c2f8975","country_code":"KR","type":"education","lineage":["https://openalex.org/I40542001"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Namkug Kim","raw_affiliation_strings":["Univ. of Ulsan (Korea, Republic of)"],"affiliations":[{"raw_affiliation_string":"Univ. of Ulsan (Korea, Republic of)","institution_ids":["https://openalex.org/I40542001"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100342108","display_name":"Sang Min Lee","orcid":"https://orcid.org/0000-0002-2173-2193"},"institutions":[{"id":"https://openalex.org/I40542001","display_name":"University of Ulsan","ror":"https://ror.org/02c2f8975","country_code":"KR","type":"education","lineage":["https://openalex.org/I40542001"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Sang Min Lee","raw_affiliation_strings":["Univ. of Ulsan  (Korea, Republic of)","Univ. of Ulsan (Korea, Republic of)"],"affiliations":[{"raw_affiliation_string":"Univ. of Ulsan  (Korea, Republic of)","institution_ids":["https://openalex.org/I40542001"]},{"raw_affiliation_string":"Univ. of Ulsan (Korea, Republic of)","institution_ids":["https://openalex.org/I40542001"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5006695326","display_name":"Joon Beom Seo","orcid":"https://orcid.org/0000-0003-0271-7884"},"institutions":[{"id":"https://openalex.org/I40542001","display_name":"University of Ulsan","ror":"https://ror.org/02c2f8975","country_code":"KR","type":"education","lineage":["https://openalex.org/I40542001"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Joon Beom Seo","raw_affiliation_strings":["Univ. of Ulsan (Korea, Republic of)"],"affiliations":[{"raw_affiliation_string":"Univ. of Ulsan (Korea, Republic of)","institution_ids":["https://openalex.org/I40542001"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5102886496","display_name":"Sang Young Oh","orcid":"https://orcid.org/0000-0001-7720-4595"},"institutions":[{"id":"https://openalex.org/I40542001","display_name":"University of Ulsan","ror":"https://ror.org/02c2f8975","country_code":"KR","type":"education","lineage":["https://openalex.org/I40542001"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Sang Young Oh","raw_affiliation_strings":["Univ. of Ulsan  (Korea, Republic of)","Univ. of Ulsan (Korea, Republic of)"],"affiliations":[{"raw_affiliation_string":"Univ. of Ulsan  (Korea, Republic of)","institution_ids":["https://openalex.org/I40542001"]},{"raw_affiliation_string":"Univ. of Ulsan (Korea, Republic of)","institution_ids":["https://openalex.org/I40542001"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5100781644"],"corresponding_institution_ids":["https://openalex.org/I40542001"],"apc_list":null,"apc_paid":null,"fwci":0.7904,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.73577175,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"9417","issue":null,"first_page":"94172V","last_page":"94172V"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10522","display_name":"Medical Imaging Techniques and Applications","score":0.9955000281333923,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10522","display_name":"Medical Imaging Techniques and Applications","score":0.9955000281333923,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10143","display_name":"Chronic Obstructive Pulmonary Disease (COPD) Research","score":0.9907000064849854,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T12386","display_name":"Advanced X-ray and CT Imaging","score":0.9811999797821045,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/attenuation","display_name":"Attenuation","score":0.7094830274581909},{"id":"https://openalex.org/keywords/cluster","display_name":"Cluster (spacecraft)","score":0.5263631939888},{"id":"https://openalex.org/keywords/pulmonary-emphysema","display_name":"Pulmonary emphysema","score":0.5095191597938538},{"id":"https://openalex.org/keywords/radiology","display_name":"Radiology","score":0.4029061794281006},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3920317590236664},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.38468074798583984},{"id":"https://openalex.org/keywords/nuclear-medicine","display_name":"Nuclear medicine","score":0.3411080241203308},{"id":"https://openalex.org/keywords/biomedical-engineering","display_name":"Biomedical engineering","score":0.32490819692611694},{"id":"https://openalex.org/keywords/lung","display_name":"Lung","score":0.2656599283218384},{"id":"https://openalex.org/keywords/internal-medicine","display_name":"Internal medicine","score":0.1451617181301117},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.12383139133453369},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.07069933414459229}],"concepts":[{"id":"https://openalex.org/C184652730","wikidata":"https://www.wikidata.org/wiki/Q2357982","display_name":"Attenuation","level":2,"score":0.7094830274581909},{"id":"https://openalex.org/C164866538","wikidata":"https://www.wikidata.org/wiki/Q367351","display_name":"Cluster (spacecraft)","level":2,"score":0.5263631939888},{"id":"https://openalex.org/C2992836489","wikidata":"https://www.wikidata.org/wiki/Q188605","display_name":"Pulmonary emphysema","level":3,"score":0.5095191597938538},{"id":"https://openalex.org/C126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","level":1,"score":0.4029061794281006},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3920317590236664},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.38468074798583984},{"id":"https://openalex.org/C2989005","wikidata":"https://www.wikidata.org/wiki/Q214963","display_name":"Nuclear medicine","level":1,"score":0.3411080241203308},{"id":"https://openalex.org/C136229726","wikidata":"https://www.wikidata.org/wiki/Q327092","display_name":"Biomedical engineering","level":1,"score":0.32490819692611694},{"id":"https://openalex.org/C2777714996","wikidata":"https://www.wikidata.org/wiki/Q7886","display_name":"Lung","level":2,"score":0.2656599283218384},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.1451617181301117},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.12383139133453369},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.07069933414459229},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1117/12.2082413","is_oa":false,"landing_page_url":"https://doi.org/10.1117/12.2082413","pdf_url":null,"source":{"id":"https://openalex.org/S183492911","display_name":"Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE","issn_l":"0277-786X","issn":["0277-786X","1996-756X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310315543","host_organization_name":"SPIE","host_organization_lineage":["https://openalex.org/P4310315543"],"host_organization_lineage_names":["SPIE"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"SPIE Proceedings","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W1999839159","https://openalex.org/W2064641470","https://openalex.org/W2095435440","https://openalex.org/W2139507936","https://openalex.org/W6680928457"],"related_works":["https://openalex.org/W2062605435","https://openalex.org/W2273182195","https://openalex.org/W2186374051","https://openalex.org/W2377963109","https://openalex.org/W2022279172","https://openalex.org/W2352247021","https://openalex.org/W2059332403","https://openalex.org/W2767089762","https://openalex.org/W2145835458","https://openalex.org/W2066034608"],"abstract_inverted_index":{"To":[0],"quantify":[1],"low":[2,81],"attenuation":[3],"area":[4,133],"(LAA)":[5],"of":[6,18,118,132,136,141,192,217,222,233],"emphysematous":[7],"regions":[8],"according":[9],"to":[10,26,68,86,100,107],"cluster":[11],"size":[12,73,89,117,127,137,207,223],"in":[13],"3D":[14],"volumetric":[15],"CT":[16,49],"data":[17],"chronic":[19],"obstructive":[20],"pulmonary":[21,32],"disease":[22],"(COPD)":[23],"patients":[24,37],"and":[25,54,113,134,146,155,171,187,200,211,220],"compare":[27],"these":[28,61],"indices":[29],"with":[30,38,90,148,163],"their":[31],"functional":[33],"test":[34],"(PFT).":[35],"Sixty":[36],"COPD":[39],"were":[40,111,144,157],"scanned":[41],"by":[42,115],"a":[43,64],"more":[44],"than":[45],"16-multi":[46],"detector":[47],"row":[48],"scanner":[50],"(Siemens":[51],"Sensation":[52],"16":[53],"64)":[55],"within":[56],"0.75mm":[57],"collimation.":[58],"Based":[59],"on":[60,93],"LAA":[62,139,209],"masks,":[63],"length":[65],"scale":[66],"analysis":[67],"estimate":[69],"each":[70,109],"emphysema":[71,128],"LAA\u2019s":[72],"was":[74,96,122],"performed":[75,97],"as":[76,124],"follows.":[77],"At":[78],"first,":[79],"Gaussian":[80],"pass":[82],"filter":[83,110],"from":[84,98],"30mm":[85],"1mm":[87,91],"kernel":[88],"interval":[92],"the":[94,108,116,119,125,164,180,206,215],"mask":[95],"large":[99],"small":[101],"size,":[102],"iteratively.":[103],"Centroid":[104],"voxels":[105],"resistant":[106],"selected":[112],"dilated":[114],"kernel,":[120],"which":[121,226],"regarded":[123],"specific":[126],"mask.":[129],"The":[130],"slopes":[131,165],"number":[135],"based":[138,208,224],"(slope":[140],"semi-log":[142],"plot)":[143],"analyzed":[145],"compared":[147],"PFT.":[149],"PFT":[150,234],"parameters":[151],"including":[152],"DLco,":[153],"FEV1,":[154],"FEV1/FVC":[156,188],"significantly":[158],"(all":[159],"p-value&lt;":[160],"0.002)":[161],"correlated":[162],"(r-values;":[166,173],"-0.73,":[167],"0.54,":[168],"0.69,":[169],"respectively)":[170],"EI":[172,195,199],"-0.84,":[174],"-0.60,":[175],"-0.68,":[176],"respectively).":[177,204],"In":[178],"addition,":[179],"D":[181],"independently":[182],"contributed":[183],"regression":[184,193],"for":[185,231],"FEV1":[186],"(adjust":[189],"R":[190],"sq.":[191],"study:":[194],"only,":[196],"0.70,":[197],"0.45;":[198],"D,":[201],"0.71,":[202],"0.51,":[203],"By":[205],"segmentation":[210],"analysis,":[212],"we":[213],"evaluated":[214],"Ds":[216],"area,":[218],"number,":[219],"distribution":[221],"LAA,":[225],"would":[227],"be":[228],"independent":[229],"factors":[230],"predictor":[232],"parameters.":[235]},"counts_by_year":[{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
