{"id":"https://openalex.org/W2141154294","doi":"https://doi.org/10.1109/icassp.2011.5947672","title":"Time-varying lung ventilation analysis of 4DCT using image registration","display_name":"Time-varying lung ventilation analysis of 4DCT using image registration","publication_year":2011,"publication_date":"2011-05-01","ids":{"openalex":"https://openalex.org/W2141154294","doi":"https://doi.org/10.1109/icassp.2011.5947672","mag":"2141154294"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.2011.5947672","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2011.5947672","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","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/A5069435273","display_name":"Kai Ding","orcid":"https://orcid.org/0000-0002-8202-0173"},"institutions":[{"id":"https://openalex.org/I51556381","display_name":"University of Virginia","ror":"https://ror.org/0153tk833","country_code":"US","type":"education","lineage":["https://openalex.org/I51556381"]},{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Kai Ding","raw_affiliation_strings":["Department of Biomedical Engineering, University of Iowa, Iowa, IA, USA","Department of Radiation Oncology, University of Virginia, Charlottesville, VA, USA"],"affiliations":[{"raw_affiliation_string":"Department of Biomedical Engineering, University of Iowa, Iowa, IA, USA","institution_ids":["https://openalex.org/I126307644"]},{"raw_affiliation_string":"Department of Radiation Oncology, University of Virginia, Charlottesville, VA, USA","institution_ids":["https://openalex.org/I51556381"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5045102378","display_name":"Kaifang Du","orcid":null},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Kaifang Du","raw_affiliation_strings":["Department of Biomedical Engineering, University of Iowa, Iowa, IA, USA"],"affiliations":[{"raw_affiliation_string":"Department of Biomedical Engineering, University of Iowa, Iowa, IA, USA","institution_ids":["https://openalex.org/I126307644"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5003321058","display_name":"Kunlin Cao","orcid":"https://orcid.org/0000-0003-2361-151X"},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Kunlin Cao","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Iowa, Iowa, IA, USA"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Iowa, Iowa, IA, USA","institution_ids":["https://openalex.org/I126307644"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5048450761","display_name":"Gary E. Christensen","orcid":"https://orcid.org/0000-0002-1473-7375"},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Gary E. Christensen","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Iowa, Iowa, IA, USA"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Iowa, Iowa, IA, USA","institution_ids":["https://openalex.org/I126307644"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5066017625","display_name":"Joseph M. Reinhardt","orcid":"https://orcid.org/0000-0003-3526-3591"},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Joseph M. Reinhardt","raw_affiliation_strings":["Department of Biomedical Engineering, University of Iowa, Iowa, IA, USA"],"affiliations":[{"raw_affiliation_string":"Department of Biomedical Engineering, University of Iowa, Iowa, IA, USA","institution_ids":["https://openalex.org/I126307644"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5069435273"],"corresponding_institution_ids":["https://openalex.org/I126307644","https://openalex.org/I51556381"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.20528716,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"28","issue":null,"first_page":"5772","last_page":"5775"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10522","display_name":"Medical Imaging Techniques and Applications","score":0.9994000196456909,"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":0.9994000196456909,"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/T11993","display_name":"Atomic and Subatomic Physics Research","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10358","display_name":"Advanced Radiotherapy Techniques","score":0.9986000061035156,"subfield":{"id":"https://openalex.org/subfields/3108","display_name":"Radiation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/image-registration","display_name":"Image registration","score":0.7578972578048706},{"id":"https://openalex.org/keywords/ventilation","display_name":"Ventilation (architecture)","score":0.7526597380638123},{"id":"https://openalex.org/keywords/expiration","display_name":"Expiration","score":0.5848029255867004},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.49209064245224},{"id":"https://openalex.org/keywords/tidal-volume","display_name":"Tidal volume","score":0.48607543110847473},{"id":"https://openalex.org/keywords/lung-ventilation","display_name":"Lung ventilation","score":0.46509209275245667},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.40385979413986206},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.3642968535423279},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.33403319120407104},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.3280150592327118},{"id":"https://openalex.org/keywords/medical-physics","display_name":"Medical physics","score":0.32219475507736206},{"id":"https://openalex.org/keywords/lung","display_name":"Lung","score":0.2866891026496887},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.2434697449207306},{"id":"https://openalex.org/keywords/respiratory-system","display_name":"Respiratory system","score":0.19036531448364258},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.16451922059059143},{"id":"https://openalex.org/keywords/mechanical-engineering","display_name":"Mechanical engineering","score":0.08640196919441223},{"id":"https://openalex.org/keywords/internal-medicine","display_name":"Internal medicine","score":0.07818248867988586}],"concepts":[{"id":"https://openalex.org/C166704113","wikidata":"https://www.wikidata.org/wiki/Q861092","display_name":"Image registration","level":3,"score":0.7578972578048706},{"id":"https://openalex.org/C200457457","wikidata":"https://www.wikidata.org/wiki/Q584049","display_name":"Ventilation (architecture)","level":2,"score":0.7526597380638123},{"id":"https://openalex.org/C2776164194","wikidata":"https://www.wikidata.org/wiki/Q2501440","display_name":"Expiration","level":3,"score":0.5848029255867004},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.49209064245224},{"id":"https://openalex.org/C2777257755","wikidata":"https://www.wikidata.org/wiki/Q3493813","display_name":"Tidal volume","level":3,"score":0.48607543110847473},{"id":"https://openalex.org/C2987681997","wikidata":"https://www.wikidata.org/wiki/Q9530","display_name":"Lung ventilation","level":3,"score":0.46509209275245667},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.40385979413986206},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.3642968535423279},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.33403319120407104},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.3280150592327118},{"id":"https://openalex.org/C19527891","wikidata":"https://www.wikidata.org/wiki/Q1120908","display_name":"Medical physics","level":1,"score":0.32219475507736206},{"id":"https://openalex.org/C2777714996","wikidata":"https://www.wikidata.org/wiki/Q7886","display_name":"Lung","level":2,"score":0.2866891026496887},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.2434697449207306},{"id":"https://openalex.org/C534529494","wikidata":"https://www.wikidata.org/wiki/Q7891","display_name":"Respiratory system","level":2,"score":0.19036531448364258},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.16451922059059143},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"score":0.08640196919441223},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.07818248867988586}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp.2011.5947672","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2011.5947672","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3","score":0.4300000071525574}],"awards":[],"funders":[{"id":"https://openalex.org/F4320332161","display_name":"National Institutes of Health","ror":"https://ror.org/01cwqze88"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W1779094783","https://openalex.org/W1920384404","https://openalex.org/W1990835448","https://openalex.org/W2020133147","https://openalex.org/W2035619816","https://openalex.org/W2077395758","https://openalex.org/W2129417697","https://openalex.org/W2129534965","https://openalex.org/W6679367408"],"related_works":["https://openalex.org/W2090838762","https://openalex.org/W2180987957","https://openalex.org/W2079358298","https://openalex.org/W1799225360","https://openalex.org/W1982664809","https://openalex.org/W2134807321","https://openalex.org/W2155338700","https://openalex.org/W2409864280","https://openalex.org/W2337395616","https://openalex.org/W1974174011"],"abstract_inverted_index":{"Imaging":[0],"techniques":[1],"for":[2],"measuring":[3,72],"lung":[4,11,106,127],"ventilation":[5,26,42,56,75,81,110,131],"are":[6],"essential":[7],"tools":[8],"to":[9,14],"study":[10],"tissue":[12],"response":[13],"radiation":[15],"therapy.":[16],"Most":[17],"of":[18,89,93,103,124,163],"the":[19,40,45,73,77,85,94,104,122,125,161],"existing":[20],"CT":[21],"and":[22,35,64,121,155],"image":[23,67],"registration":[24,95,143],"based":[25],"measurement":[27,57],"methods":[28],"use":[29],"two":[30],"extreme":[31],"phases":[32,154],"(end":[33],"expiration":[34,138],"end":[36],"inspiration)":[37],"while":[38],"ignoring":[39],"important":[41],"variation":[43],"within":[44,76],"respiratory":[46,78],"cycle.":[47,79],"In":[48],"this":[49],"paper,":[50],"we":[51],"present":[52],"a":[53],"new":[54],"instantaneous":[55],"scheme":[58],"using":[59,84],"multiple":[60],"4DCT":[61],"phase":[62],"images":[63],"regularized":[65],"3D":[66],"registration,":[68],"which":[69],"aims":[70],"at":[71,111,132],"regional":[74],"The":[80,142],"is":[82],"measured":[83],"Jacobian":[86],"(a":[87],"function":[88],"local":[90],"partial":[91],"derivatives)":[92],"displacement":[96],"field.":[97],"For":[98],"all":[99,153],"four":[100],"animals,":[101],"39%":[102],"total":[105,126],"volume":[107,128],"reaches":[108,129],"maximum":[109,130],"T":[112,133],"<sub":[113,134],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[114,135],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">2</sub>":[115],"(50%":[116],"inspiration":[117,120],"phase)":[118,139],"during":[119,140],"75%":[123],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">5</sub>":[136],"(75%":[137],"expiration.":[141],"accuracy":[144],"assessed":[145],"by":[146],"200":[147],"semi":[148],"automatically":[149],"matched":[150],"landmarks":[151],"in":[152],"animals":[156],"show":[157],"landmark":[158],"error":[159],"on":[160],"order":[162],"1":[164],"mm":[165],"after":[166],"registration.":[167]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}