{"id":"https://openalex.org/W4410639391","doi":"https://doi.org/10.1109/tim.2025.3573010","title":"Measuring Pulse Transit Time From Finger and Facial Photoplethysmography for Arterial Stiffness Estimation","display_name":"Measuring Pulse Transit Time From Finger and Facial Photoplethysmography for Arterial Stiffness Estimation","publication_year":2025,"publication_date":"2025-01-01","ids":{"openalex":"https://openalex.org/W4410639391","doi":"https://doi.org/10.1109/tim.2025.3573010"},"language":"en","primary_location":{"id":"doi:10.1109/tim.2025.3573010","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tim.2025.3573010","pdf_url":null,"source":{"id":"https://openalex.org/S10892749","display_name":"IEEE Transactions on Instrumentation and Measurement","issn_l":"0018-9456","issn":["0018-9456","1557-9662"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Instrumentation and Measurement","raw_type":"journal-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/A5101526919","display_name":"Yawei Chen","orcid":"https://orcid.org/0000-0001-8770-4307"},"institutions":[{"id":"https://openalex.org/I16365422","display_name":"Hefei University of Technology","ror":"https://ror.org/02czkny70","country_code":"CN","type":"education","lineage":["https://openalex.org/I16365422"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Yawei Chen","raw_affiliation_strings":["School of Computer and Information and Anhui Province Key Laboratory of Industry Safety and Emergency Technology, Hefei University of Technology, Hefei, China","School of Computer and Information, Hefei University of Technology, Hefei, China"],"raw_orcid":"https://orcid.org/0000-0001-8770-4307","affiliations":[{"raw_affiliation_string":"School of Computer and Information and Anhui Province Key Laboratory of Industry Safety and Emergency Technology, Hefei University of Technology, Hefei, China","institution_ids":["https://openalex.org/I16365422"]},{"raw_affiliation_string":"School of Computer and Information, Hefei University of Technology, Hefei, China","institution_ids":["https://openalex.org/I16365422"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100748471","display_name":"Xuezhi Yang","orcid":"https://orcid.org/0000-0002-2303-4858"},"institutions":[{"id":"https://openalex.org/I16365422","display_name":"Hefei University of Technology","ror":"https://ror.org/02czkny70","country_code":"CN","type":"education","lineage":["https://openalex.org/I16365422"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xuezhi Yang","raw_affiliation_strings":["School of Computer and Information and Anhui Province Key Laboratory of Industry Safety and Emergency Technology, Hefei University of Technology, Hefei, China","School of Computer and Information, Hefei University of Technology, Hefei, China"],"raw_orcid":"https://orcid.org/0000-0002-2303-4858","affiliations":[{"raw_affiliation_string":"School of Computer and Information and Anhui Province Key Laboratory of Industry Safety and Emergency Technology, Hefei University of Technology, Hefei, China","institution_ids":["https://openalex.org/I16365422"]},{"raw_affiliation_string":"School of Computer and Information, Hefei University of Technology, Hefei, China","institution_ids":["https://openalex.org/I16365422"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5003155514","display_name":"Xuenan Liu","orcid":"https://orcid.org/0000-0002-6804-964X"},"institutions":[{"id":"https://openalex.org/I16365422","display_name":"Hefei University of Technology","ror":"https://ror.org/02czkny70","country_code":"CN","type":"education","lineage":["https://openalex.org/I16365422"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xuenan Liu","raw_affiliation_strings":["School of Computer and Information and Anhui Province Key Laboratory of Industry Safety and Emergency Technology, Hefei University of Technology, Hefei, China","School of Computer and Information, Hefei University of Technology, Hefei, China"],"raw_orcid":"https://orcid.org/0000-0002-6804-964X","affiliations":[{"raw_affiliation_string":"School of Computer and Information and Anhui Province Key Laboratory of Industry Safety and Emergency Technology, Hefei University of Technology, Hefei, China","institution_ids":["https://openalex.org/I16365422"]},{"raw_affiliation_string":"School of Computer and Information, Hefei University of Technology, Hefei, China","institution_ids":["https://openalex.org/I16365422"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5081810060","display_name":"Dingliang Wang","orcid":null},"institutions":[{"id":"https://openalex.org/I143868143","display_name":"Anhui University","ror":"https://ror.org/05th6yx34","country_code":"CN","type":"education","lineage":["https://openalex.org/I143868143"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Dingliang Wang","raw_affiliation_strings":["School of Electronic Information Engineering, Anhui University, Hefei, China"],"raw_orcid":"https://orcid.org/0000-0001-8616-3684","affiliations":[{"raw_affiliation_string":"School of Electronic Information Engineering, Anhui University, Hefei, China","institution_ids":["https://openalex.org/I143868143"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5032803928","display_name":"Jie Zhang","orcid":"https://orcid.org/0000-0001-8562-9294"},"institutions":[{"id":"https://openalex.org/I126520041","display_name":"University of Science and Technology of China","ror":"https://ror.org/04c4dkn09","country_code":"CN","type":"education","lineage":["https://openalex.org/I126520041","https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jie Zhang","raw_affiliation_strings":["First Affiliated Hospital of the University of Science and Technology of China, Hefei, China","First Affiliated Hospital of University of Science and Technology of China, Hefei, China"],"raw_orcid":"https://orcid.org/0000-0001-8562-9294","affiliations":[{"raw_affiliation_string":"First Affiliated Hospital of the University of Science and Technology of China, Hefei, China","institution_ids":["https://openalex.org/I126520041"]},{"raw_affiliation_string":"First Affiliated Hospital of University of Science and Technology of China, Hefei, China","institution_ids":["https://openalex.org/I126520041"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5101526919"],"corresponding_institution_ids":["https://openalex.org/I16365422"],"apc_list":null,"apc_paid":null,"fwci":0.6013,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.66231292,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":95},"biblio":{"volume":"74","issue":null,"first_page":"1","last_page":"12"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":0.9980999827384949,"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":0.9980999827384949,"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/T10924","display_name":"Cardiovascular Health and Disease Prevention","score":0.9833999872207642,"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"}},{"id":"https://openalex.org/T10977","display_name":"Optical Imaging and Spectroscopy Techniques","score":0.9775999784469604,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/photoplethysmogram","display_name":"Photoplethysmogram","score":0.9396023154258728},{"id":"https://openalex.org/keywords/arterial-stiffness","display_name":"Arterial stiffness","score":0.5780697464942932},{"id":"https://openalex.org/keywords/pulse","display_name":"Pulse (music)","score":0.5357714295387268},{"id":"https://openalex.org/keywords/transit-time","display_name":"Transit time","score":0.5051954388618469},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.407284140586853},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.376370370388031},{"id":"https://openalex.org/keywords/biomedical-engineering","display_name":"Biomedical engineering","score":0.37021225690841675},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.25902441143989563},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.2521408498287201},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.24063968658447266},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.20593267679214478},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.20022714138031006},{"id":"https://openalex.org/keywords/internal-medicine","display_name":"Internal medicine","score":0.18134889006614685},{"id":"https://openalex.org/keywords/detector","display_name":"Detector","score":0.13170352578163147},{"id":"https://openalex.org/keywords/blood-pressure","display_name":"Blood pressure","score":0.130308598279953}],"concepts":[{"id":"https://openalex.org/C116390426","wikidata":"https://www.wikidata.org/wiki/Q7187885","display_name":"Photoplethysmogram","level":3,"score":0.9396023154258728},{"id":"https://openalex.org/C2775850156","wikidata":"https://www.wikidata.org/wiki/Q4797538","display_name":"Arterial stiffness","level":3,"score":0.5780697464942932},{"id":"https://openalex.org/C2780167933","wikidata":"https://www.wikidata.org/wiki/Q1550652","display_name":"Pulse (music)","level":3,"score":0.5357714295387268},{"id":"https://openalex.org/C3018129524","wikidata":"https://www.wikidata.org/wiki/Q7834377","display_name":"Transit time","level":2,"score":0.5051954388618469},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.407284140586853},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.376370370388031},{"id":"https://openalex.org/C136229726","wikidata":"https://www.wikidata.org/wiki/Q327092","display_name":"Biomedical engineering","level":1,"score":0.37021225690841675},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.25902441143989563},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.2521408498287201},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.24063968658447266},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.20593267679214478},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.20022714138031006},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.18134889006614685},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.13170352578163147},{"id":"https://openalex.org/C84393581","wikidata":"https://www.wikidata.org/wiki/Q82642","display_name":"Blood pressure","level":2,"score":0.130308598279953},{"id":"https://openalex.org/C22212356","wikidata":"https://www.wikidata.org/wiki/Q775325","display_name":"Transport engineering","level":1,"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}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tim.2025.3573010","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tim.2025.3573010","pdf_url":null,"source":{"id":"https://openalex.org/S10892749","display_name":"IEEE Transactions on Instrumentation and Measurement","issn_l":"0018-9456","issn":["0018-9456","1557-9662"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Instrumentation and Measurement","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G6330790300","display_name":null,"funder_award_id":"PA2023IISL0101","funder_id":"https://openalex.org/F4320335787","funder_display_name":"Fundamental Research Funds for the Central Universities"}],"funders":[{"id":"https://openalex.org/F4320335787","display_name":"Fundamental Research Funds for the Central Universities","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":35,"referenced_works":["https://openalex.org/W1933258993","https://openalex.org/W2023171018","https://openalex.org/W2046098501","https://openalex.org/W2048499202","https://openalex.org/W2050038138","https://openalex.org/W2061952364","https://openalex.org/W2069692225","https://openalex.org/W2101342650","https://openalex.org/W2130966532","https://openalex.org/W2133629144","https://openalex.org/W2135495400","https://openalex.org/W2156374752","https://openalex.org/W2178867594","https://openalex.org/W2340586723","https://openalex.org/W2344678829","https://openalex.org/W2554896876","https://openalex.org/W2597524575","https://openalex.org/W2605341665","https://openalex.org/W2609301836","https://openalex.org/W2729624487","https://openalex.org/W2795263500","https://openalex.org/W2900790923","https://openalex.org/W3109984383","https://openalex.org/W3173996236","https://openalex.org/W3198244247","https://openalex.org/W3211778934","https://openalex.org/W4213378969","https://openalex.org/W4223927593","https://openalex.org/W4282839479","https://openalex.org/W4286227856","https://openalex.org/W4312068732","https://openalex.org/W4321376997","https://openalex.org/W4381232950","https://openalex.org/W4393305528","https://openalex.org/W4402125007"],"related_works":["https://openalex.org/W2732360296","https://openalex.org/W1994871954","https://openalex.org/W4297152434","https://openalex.org/W2072858761","https://openalex.org/W1540261775","https://openalex.org/W4239033438","https://openalex.org/W1968279762","https://openalex.org/W2384584038","https://openalex.org/W2043326433","https://openalex.org/W2777534421"],"abstract_inverted_index":{"Frequent":[0],"monitoring":[1],"of":[2,12,72,88,133,169],"arterial":[3],"stiffness":[4],"(AS)":[5],"is":[6,32,172],"crucial":[7],"for":[8,40,175,182,196],"the":[9,69,73,77,86,123,131,143,164,176,183,189],"early":[10],"prevention":[11],"cardiovascular":[13,200],"diseases.":[14],"Traditional":[15],"AS":[16,45,112,134,170,190],"estimation":[17,171],"based":[18],"solely":[19],"on":[20],"finger":[21,47],"photoplethysmography":[22],"(PPG)":[23],"provides":[24],"a":[25,37,147],"convenient":[26],"detection":[27],"method,":[28],"but":[29],"its":[30,194],"accuracy":[31,87,132],"limited.":[33],"This":[34,186],"study":[35],"proposes":[36],"novel":[38],"method":[39,187],"conveniently":[41],"and":[42,48,104,163,179],"accurately":[43],"measuring":[44],"using":[46,142],"face":[49],"PPG.":[50],"Firstly,":[51],"we":[52],"simultaneously":[53],"collected":[54],"PPG":[55,127],"signals":[56],"from":[57,94],"both,":[58],"utilizing":[59],"linear":[60],"phase":[61,101],"filtering":[62],"to":[63,84,121],"remove":[64],"noise":[65],"interference":[66],"while":[67],"preserving":[68],"temporal":[70,106],"characteristics":[71],"pulse":[74,114],"signals.":[75],"Secondly,":[76],"Phase-Temporal":[78],"Analysis":[79],"(PTA)":[80],"algorithm":[81,145],"was":[82,119],"introduced":[83],"enhance":[85],"Pulse":[89],"Transit":[90],"Time":[91],"(PTT)":[92],"measurement":[93],"small":[95],"time":[96],"delays":[97],"by":[98],"combining":[99],"wavelet":[100],"coherence":[102],"determination":[103],"cross-correlation":[105],"features.":[107],"Finally,":[108],"considering":[109],"that":[110,139],"increased":[111],"affects":[113],"morphology,":[115],"an":[116],"XGBoost":[117],"model":[118],"used":[120],"combine":[122],"measured":[124,141],"PTT":[125,140,152],"with":[126,150],"features,":[128],"thereby":[129],"improving":[130],"estimation.":[135],"Experimental":[136],"results":[137],"show":[138],"PTA":[144],"has":[146],"strong":[148],"correlation":[149],"reference":[151],"(Male":[153],"group:":[154,159],"PCC":[155,160],"=":[156,161],"0.81,":[157],"Female":[158],"0.89),":[162],"mean":[165],"absolute":[166],"error":[167],"(MAE)":[168],"66.35":[173],"cm/s":[174,181],"male":[177],"group":[178],"56.25":[180],"female":[184],"group.":[185],"simplifies":[188],"assessment":[191],"process,":[192],"highlighting":[193],"potential":[195],"clinical":[197],"applications":[198],"in":[199],"health":[201],"monitoring.":[202]},"counts_by_year":[{"year":2025,"cited_by_count":1}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}
