{"id":"https://openalex.org/W2033337535","doi":"https://doi.org/10.1117/12.907874","title":"Measuring hemoglobin amount and oxygen saturation of skin with advancing age","display_name":"Measuring hemoglobin amount and oxygen saturation of skin with advancing age","publication_year":2012,"publication_date":"2012-01-06","ids":{"openalex":"https://openalex.org/W2033337535","doi":"https://doi.org/10.1117/12.907874","mag":"2033337535"},"language":"en","primary_location":{"id":"doi:10.1117/12.907874","doi":"https://doi.org/10.1117/12.907874","is_oa":false,"landing_page_url":"https://doi.org/10.1117/12.907874","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,"listed_in":["cwts-core","norway-1"],"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"},"volume":null,"type":"conference-paper","is_traditional":true,"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/A5005603975","display_name":"Shumpei Watanabe","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I159385669","display_name":"Chiba University","ror":"https://ror.org/01hjzeq58","country_code":"JP","type":"education","lineage":["https://openalex.org/I159385669"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Shumpei Watanabe","raw_affiliation_strings":["Chiba Univ. (Japan)","Chiba University (Japan)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Chiba Univ. (Japan)","institution_ids":["https://openalex.org/I159385669"]},{"raw_affiliation_string":"Chiba University (Japan)","institution_ids":["https://openalex.org/I159385669"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101941641","display_name":"Satoshi Yamamoto","orcid":"https://orcid.org/0000-0002-3342-7655","observed_orcids":["https://orcid.org/0000-0002-3342-7655"]},"institutions":[{"id":"https://openalex.org/I203951103","display_name":"Keio University","ror":"https://ror.org/02kn6nx58","country_code":"JP","type":"education","lineage":["https://openalex.org/I203951103"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Satoshi Yamamoto","raw_affiliation_strings":["Keio Univ. (Japan)","(Keio University, Japan)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Keio Univ. (Japan)","institution_ids":["https://openalex.org/I203951103"]},{"raw_affiliation_string":"(Keio University, Japan)","institution_ids":["https://openalex.org/I203951103"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5068535111","display_name":"Midori Yamauchi","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I159385669","display_name":"Chiba University","ror":"https://ror.org/01hjzeq58","country_code":"JP","type":"education","lineage":["https://openalex.org/I159385669"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Midori Yamauchi","raw_affiliation_strings":["Chiba Univ. (Japan)","Chiba University (Japan)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Chiba Univ. (Japan)","institution_ids":["https://openalex.org/I159385669"]},{"raw_affiliation_string":"Chiba University (Japan)","institution_ids":["https://openalex.org/I159385669"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109934226","display_name":"Norimichi Tsumura","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I159385669","display_name":"Chiba University","ror":"https://ror.org/01hjzeq58","country_code":"JP","type":"education","lineage":["https://openalex.org/I159385669"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Norimichi Tsumura","raw_affiliation_strings":["Chiba Univ. (Japan)","Chiba University (Japan)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Chiba Univ. (Japan)","institution_ids":["https://openalex.org/I159385669"]},{"raw_affiliation_string":"Chiba University (Japan)","institution_ids":["https://openalex.org/I159385669"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063731778","display_name":"Keiko Ogawa\u2010Ochiai","orcid":"https://orcid.org/0000-0002-3277-0646","observed_orcids":["https://orcid.org/0000-0002-3277-0646"]},"institutions":[{"id":"https://openalex.org/I4210104330","display_name":"Kanazawa University Hospital","ror":"https://ror.org/00xsdn005","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210104330"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Keiko Ogawa-Ochiai","raw_affiliation_strings":["Kanazawa Univ. Hospital (Japan)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Kanazawa Univ. Hospital (Japan)","institution_ids":["https://openalex.org/I4210104330"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5110388074","display_name":"Tetsuo AKIBA","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Tetsuo Akiba","raw_affiliation_strings":["AKIBA Clinic of Traditional Medicine (Japan)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"AKIBA Clinic of Traditional Medicine (Japan)","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.7736,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.65953757,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":"8229","issue":null,"first_page":"822905","last_page":"822905"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10977","display_name":"Optical Imaging and Spectroscopy Techniques","score":0.9804999828338623,"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/T10977","display_name":"Optical Imaging and Spectroscopy Techniques","score":0.9804999828338623,"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/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":0.016300000250339508,"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"}},{"id":"https://openalex.org/T11324","display_name":"Spectroscopy Techniques in Biomedical and Chemical Research","score":0.0005000000237487257,"subfield":{"id":"https://openalex.org/subfields/1304","display_name":"Biophysics"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/hemoglobin-levels","display_name":"hemoglobin levels","score":0.9369999766349792},{"id":"https://openalex.org/keywords/aging","display_name":"aging","score":0.8069999814033508},{"id":"https://openalex.org/keywords/monte-carlo-simulation","display_name":"Monte Carlo simulation","score":0.6380000114440918},{"id":"https://openalex.org/keywords/nonlinear-programming","display_name":"nonlinear programming","score":0.8309999704360962},{"id":"https://openalex.org/keywords/peripheral-oxygenation","display_name":"peripheral oxygenation","score":0.6320000290870667}],"concepts":[{"id":"https://openalex.org/C108597893","wikidata":"https://www.wikidata.org/wiki/Q663650","display_name":"Reflectivity","level":2,"score":0.7414464354515076},{"id":"https://openalex.org/C9930424","wikidata":"https://www.wikidata.org/wiki/Q7426587","display_name":"Saturation (graph theory)","level":2,"score":0.6686408519744873},{"id":"https://openalex.org/C540031477","wikidata":"https://www.wikidata.org/wiki/Q629","display_name":"Oxygen","level":2,"score":0.6340732574462891},{"id":"https://openalex.org/C76538665","wikidata":"https://www.wikidata.org/wiki/Q6294669","display_name":"Oxygen saturation","level":3,"score":0.6039140224456787},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.5546197891235352},{"id":"https://openalex.org/C2781095625","wikidata":"https://www.wikidata.org/wiki/Q530315","display_name":"Thenar eminence","level":2,"score":0.5331752896308899},{"id":"https://openalex.org/C89169090","wikidata":"https://www.wikidata.org/wiki/Q593204","display_name":"Limiting oxygen concentration","level":3,"score":0.4713175892829895},{"id":"https://openalex.org/C136229726","wikidata":"https://www.wikidata.org/wiki/Q327092","display_name":"Biomedical engineering","level":1,"score":0.4529440104961395},{"id":"https://openalex.org/C2780167933","wikidata":"https://www.wikidata.org/wiki/Q1550652","display_name":"Pulse (music)","level":3,"score":0.42040881514549255},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.3794138729572296},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.3156704604625702},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.19585663080215454},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.16346770524978638},{"id":"https://openalex.org/C141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","level":1,"score":0.15208902955055237},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.14200618863105774},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.0},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1117/12.907874","doi":"https://doi.org/10.1117/12.907874","is_oa":false,"landing_page_url":"https://doi.org/10.1117/12.907874","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,"listed_in":["cwts-core","norway-1"],"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":[{"score":0.8999999761581421,"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3"}],"study_designs":[{"display_name":"Observational Study","id":"https://openalex.org/study-designs/observational-study"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W1967211900","https://openalex.org/W7084074867","https://openalex.org/W2033247137","https://openalex.org/W2088264280","https://openalex.org/W2089264321","https://openalex.org/W1976574948","https://openalex.org/W2029116808","https://openalex.org/W614009289","https://openalex.org/W1979513581","https://openalex.org/W2026495263"],"abstract_inverted_index":{"We":[0],"measured":[1,29,127,148,155],"the":[2,40,51,68,126,132,134,159,161,165,172,183],"oxygen":[3,36,54,123,173],"saturation":[4,26,55,124,174],"of":[5,42,56,103,138,175],"skin":[6,19,57,87,128,135,176],"at":[7,46,179],"various":[8],"ages":[9],"using":[10],"our":[11],"previously":[12,65],"proposed":[13,66],"method":[14,72,113],"that":[15,111,171],"can":[16,85,114],"rapidly":[17],"simulate":[18,86],"spectral":[20,88,129],"reflectance":[21,89,136],"with":[22,105],"high":[23],"accuracy.":[24],"Oxygen":[25],"is":[27,58,74],"commonly":[28],"by":[30,149],"a":[31,47,77,106,150],"pulse":[32],"oximeter":[33],"to":[34,60],"evaluate":[35],"delivery":[37],"for":[38,80,118,156],"monitoring":[39],"functions":[41],"heart":[43],"and":[44,122,144,164],"lungs":[45],"specific":[48],"time.":[49],"On":[50],"other":[52],"hand,":[53],"expected":[59],"assess":[61],"peripheral":[62],"conditions.":[63],"Our":[64],"method,":[67],"optical":[69],"path-length":[70],"matrix":[71],"(OPLM),":[73],"based":[75],"on":[76],"Monte":[78],"Carlo":[79],"multi-layered":[81],"media":[82],"(MCML),":[83],"but":[84],"27,000":[90],"times":[91],"faster":[92],"than":[93],"MCML.":[94],"In":[95,131],"this":[96,112],"study,":[97],"we":[98],"implemented":[99],"an":[100],"iterative":[101],"simulation":[102],"OPLM":[104],"nonlinear":[107],"optimization":[108],"technique":[109],"such":[110],"also":[115],"be":[116],"used":[117],"estimating":[119],"hemoglobin":[120],"concentration":[121],"from":[125],"reflectance.":[130],"experiments,":[133],"spectra":[137],"72":[139],"outpatients":[140],"aged":[141],"between":[142],"20":[143],"86":[145],"years":[146],"were":[147,154],"spectrophotometer.":[151],"Three":[152],"points":[153],"each":[157,180],"subject:":[158],"forearm,":[160],"thenar":[162],"eminence,":[163],"intermediate":[166],"phalanx.":[167],"The":[168],"result":[169],"showed":[170],"remained":[177],"constant":[178],"point":[181],"as":[182],"age":[184],"varied.":[185]},"counts_by_year":[{"year":2015,"cited_by_count":1}],"updated_date":"2026-10-30T12:39:25.321706","created_date":"2016-06-24T00:00:00"}
