{"id":"https://openalex.org/W186997407","doi":null,"title":"An assessment of blood vessel vasoactivity using photoplethysmography.","display_name":"An assessment of blood vessel vasoactivity using photoplethysmography.","publication_year":1988,"publication_date":"1988-02-01","ids":{"openalex":"https://openalex.org/W186997407","mag":"186997407","pmid":"https://pubmed.ncbi.nlm.nih.gov/3357462"},"language":"en","primary_location":{"id":"pmid:3357462","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/3357462","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Medical instrumentation","raw_type":"Journal Article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["pubmed"],"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/A5109044811","display_name":"M. Evans","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I219193219","display_name":"Purdue University West Lafayette","ror":"https://ror.org/02dqehb95","country_code":"US","type":"education","lineage":["https://openalex.org/I219193219"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"M L Evans","raw_affiliation_strings":["Biomedical Engineering Center, Purdue University, West Lafayette, IN 47906"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Biomedical Engineering Center, Purdue University, West Lafayette, IN 47906","institution_ids":["https://openalex.org/I219193219"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5036657031","display_name":"L A Geddes","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"L A Geddes","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.9557,"has_fulltext":false,"cited_by_count":28,"citation_normalized_percentile":{"value":0.74273189,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":97},"biblio":{"volume":"22","issue":"1","first_page":"29","last_page":"32"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":0.9990000128746033,"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"}},"topics":[{"id":"https://openalex.org/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":0.9990000128746033,"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/T10977","display_name":"Optical Imaging and Spectroscopy Techniques","score":0.0003000000142492354,"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/T10924","display_name":"Cardiovascular Health and Disease Prevention","score":9.999999747378752e-05,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/vascular-reactivity","display_name":"vascular reactivity","score":0.8019999861717224},{"id":"https://openalex.org/keywords/photoplethysmography","display_name":"photoplethysmography","score":0.9670000076293945},{"id":"https://openalex.org/keywords/earlobe","display_name":"earlobe","score":0.6349999904632568},{"id":"https://openalex.org/keywords/finger-pad","display_name":"finger pad","score":0.9800000190734863},{"id":"https://openalex.org/keywords/nasal-septum","display_name":"nasal septum","score":1.0},{"id":"https://openalex.org/keywords/cold-pressor-test","display_name":"cold pressor test","score":0.8659999966621399},{"id":"https://openalex.org/keywords/pulse-amplitude","display_name":"pulse amplitude","score":0.8579999804496765},{"id":"https://openalex.org/keywords/tissue-blood-flow","display_name":"tissue blood flow","score":0.35499998927116394},{"id":"https://openalex.org/keywords/infrared-illumination","display_name":"infrared illumination","score":0.3190000057220459}],"concepts":[{"id":"https://openalex.org/C2778604196","wikidata":"https://www.wikidata.org/wiki/Q1778517","display_name":"Earlobe","level":2,"score":0.9895981550216675},{"id":"https://openalex.org/C116390426","wikidata":"https://www.wikidata.org/wiki/Q7187885","display_name":"Photoplethysmogram","level":3,"score":0.8930667638778687},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.6210629343986511},{"id":"https://openalex.org/C79191276","wikidata":"https://www.wikidata.org/wiki/Q7259620","display_name":"Pulsatile flow","level":2,"score":0.5122572779655457},{"id":"https://openalex.org/C2780167933","wikidata":"https://www.wikidata.org/wiki/Q1550652","display_name":"Pulse (music)","level":3,"score":0.4683873951435089},{"id":"https://openalex.org/C2777917003","wikidata":"https://www.wikidata.org/wiki/Q500634","display_name":"Nasal septum","level":3,"score":0.44863903522491455},{"id":"https://openalex.org/C120770815","wikidata":"https://www.wikidata.org/wiki/Q14859627","display_name":"Vasodilation","level":2,"score":0.4307124614715576},{"id":"https://openalex.org/C133828647","wikidata":"https://www.wikidata.org/wiki/Q6159778","display_name":"Vasoactive","level":2,"score":0.41140830516815186},{"id":"https://openalex.org/C136229726","wikidata":"https://www.wikidata.org/wiki/Q327092","display_name":"Biomedical engineering","level":1,"score":0.40533679723739624},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.2709100842475891},{"id":"https://openalex.org/C105702510","wikidata":"https://www.wikidata.org/wiki/Q514","display_name":"Anatomy","level":1,"score":0.2453676462173462},{"id":"https://openalex.org/C141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","level":1,"score":0.23164528608322144},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.23033985495567322},{"id":"https://openalex.org/C2778311950","wikidata":"https://www.wikidata.org/wiki/Q7363","display_name":"Nose","level":2,"score":0.16955500841140747},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.11060774326324463},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.0},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.0},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000328","descriptor_name":"Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D003080","descriptor_name":"Cold Temperature","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D004431","descriptor_name":"Ear, External","qualifier_ui":"Q000098","qualifier_name":"blood supply","is_major_topic":true},{"descriptor_ui":"D005385","descriptor_name":"Fingers","qualifier_ui":"Q000098","qualifier_name":"blood supply","is_major_topic":true},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D009262","descriptor_name":"Nails","qualifier_ui":"Q000098","qualifier_name":"blood supply","is_major_topic":true},{"descriptor_ui":"D009300","descriptor_name":"Nasal Septum","qualifier_ui":"Q000098","qualifier_name":"blood supply","is_major_topic":true},{"descriptor_ui":"D010092","descriptor_name":"Oximetry","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D010991","descriptor_name":"Plethysmography","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D014661","descriptor_name":"Vasoconstriction","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true}],"locations_count":2,"locations":[{"id":"pmid:3357462","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/3357462","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Medical instrumentation","raw_type":"Journal Article"},{"id":"mag:186997407","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/3357462","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"PubMed","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being","score":0.9391000270843506}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2326489247","https://openalex.org/W2170481266","https://openalex.org/W3034281110","https://openalex.org/W2588701810","https://openalex.org/W2133224602","https://openalex.org/W1999231313","https://openalex.org/W2581216570","https://openalex.org/W2084636310","https://openalex.org/W4243378597","https://openalex.org/W2468701812"],"abstract_inverted_index":{"The":[0,32,71,103],"vasoactivity":[1],"of":[2,5,24,42,91,114],"the":[3,6,22,56,61,89,94,97,100],"vessels":[4],"earlobe,":[7],"nailbed,":[8,106],"finger":[9,108],"pad,":[10],"and":[11,55,107],"nasal":[12,104],"septum":[13],"was":[14,47,86,99],"investigated":[15],"in":[16,29,38,73,80,112],"11":[17],"human":[18],"subjects":[19,33],"to":[20,82],"determine":[21],"suitability":[23],"these":[25],"sites":[26,95],"for":[27],"use":[28],"indirect":[30],"oximetry.":[31],"were":[34,64,110],"healthy,":[35],"nonsmoking":[36],"volunteers":[37],"an":[39],"age":[40],"range":[41],"20-32":[43],"years.":[44],"Each":[45],"site":[46,79],"illuminated":[48],"with":[49],"infrared":[50],"radiation":[51],"at":[52,77],"880":[53],"nm,":[54],"reflected":[57],"pulsatile":[58],"signals":[59],"from":[60],"tissue":[62],"beds":[63],"displayed":[65],"on":[66],"a":[67,83],"multichannel":[68],"analog":[69],"recorder.":[70],"decrease":[72],"pulse":[74],"amplitude":[75],"detected":[76],"each":[78],"response":[81],"cold-pressor":[84],"test":[85],"used":[87],"as":[88],"measure":[90],"vasoactivity.":[92],"Among":[93],"investigated,":[96],"earlobe":[98],"least":[101],"vasoactive.":[102],"septum,":[105],"pad":[109],"similar":[111],"degrees":[113],"vessel":[115],"reactivity.":[116]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":3},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":1}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2016-06-24T00:00:00"}
