{"id":"https://openalex.org/W2803038464","doi":"https://doi.org/10.1109/jbhi.2018.2829608","title":"Automatic Detection of Aortic Valve Opening Using Seismocardiography in Healthy Individuals","display_name":"Automatic Detection of Aortic Valve Opening Using Seismocardiography in Healthy Individuals","publication_year":2018,"publication_date":"2018-04-24","ids":{"openalex":"https://openalex.org/W2803038464","doi":"https://doi.org/10.1109/jbhi.2018.2829608","mag":"2803038464","pmid":"https://pubmed.ncbi.nlm.nih.gov/29993702"},"language":"en","primary_location":{"id":"doi:10.1109/jbhi.2018.2829608","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jbhi.2018.2829608","pdf_url":null,"source":{"id":"https://openalex.org/S2495854775","display_name":"IEEE Journal of Biomedical and Health Informatics","issn_l":"2168-2194","issn":["2168-2194","2168-2208"],"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 Journal of Biomedical and Health Informatics","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","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/A5037399650","display_name":"Tilendra Choudhary","orcid":"https://orcid.org/0000-0001-5012-9046"},"institutions":[{"id":"https://openalex.org/I1317621060","display_name":"Indian Institute of Technology Guwahati","ror":"https://ror.org/0022nd079","country_code":"IN","type":"education","lineage":["https://openalex.org/I1317621060"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Tilendra Choudhary","raw_affiliation_strings":["Department of Electronics and Electrical Engineering, Indian Institute of Technology Guwahati, Guwahati, India"],"raw_orcid":"https://orcid.org/0000-0001-5012-9046","affiliations":[{"raw_affiliation_string":"Department of Electronics and Electrical Engineering, Indian Institute of Technology Guwahati, Guwahati, India","institution_ids":["https://openalex.org/I1317621060"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5079396019","display_name":"L. N. Sharma","orcid":"https://orcid.org/0000-0002-8233-8982"},"institutions":[{"id":"https://openalex.org/I1317621060","display_name":"Indian Institute of Technology Guwahati","ror":"https://ror.org/0022nd079","country_code":"IN","type":"education","lineage":["https://openalex.org/I1317621060"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"L. N. Sharma","raw_affiliation_strings":["Department of Electronics and Electrical Engineering, Indian Institute of Technology Guwahati, Guwahati, India"],"raw_orcid":"https://orcid.org/0000-0002-8233-8982","affiliations":[{"raw_affiliation_string":"Department of Electronics and Electrical Engineering, Indian Institute of Technology Guwahati, Guwahati, India","institution_ids":["https://openalex.org/I1317621060"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5036707627","display_name":"M. K. Bhuyan","orcid":"https://orcid.org/0000-0003-2152-5466"},"institutions":[{"id":"https://openalex.org/I1317621060","display_name":"Indian Institute of Technology Guwahati","ror":"https://ror.org/0022nd079","country_code":"IN","type":"education","lineage":["https://openalex.org/I1317621060"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"M. K. Bhuyan","raw_affiliation_strings":["Department of Electronics and Electrical Engineering, Indian Institute of Technology Guwahati, Guwahati, India"],"raw_orcid":"https://orcid.org/0000-0003-2152-5466","affiliations":[{"raw_affiliation_string":"Department of Electronics and Electrical Engineering, Indian Institute of Technology Guwahati, Guwahati, India","institution_ids":["https://openalex.org/I1317621060"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I1317621060"],"apc_list":null,"apc_paid":null,"fwci":3.411,"has_fulltext":false,"cited_by_count":66,"citation_normalized_percentile":{"value":0.93247448,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"23","issue":"3","first_page":"1032","last_page":"1040"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":0.9998000264167786,"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":0.9998000264167786,"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/T12419","display_name":"Phonocardiography and Auscultation Techniques","score":0.9987999796867371,"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/T11021","display_name":"ECG Monitoring and Analysis","score":0.9961000084877014,"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/kurtosis","display_name":"Kurtosis","score":0.8187206983566284},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.5762993097305298},{"id":"https://openalex.org/keywords/independent-component-analysis","display_name":"Independent component analysis","score":0.4999697208404541},{"id":"https://openalex.org/keywords/wavelet","display_name":"Wavelet","score":0.4771296977996826},{"id":"https://openalex.org/keywords/preprocessor","display_name":"Preprocessor","score":0.470303475856781},{"id":"https://openalex.org/keywords/robustness","display_name":"Robustness (evolution)","score":0.4677828550338745},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4635770618915558},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.45404118299484253},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4278803765773773},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3802814483642578},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.32282862067222595}],"concepts":[{"id":"https://openalex.org/C166963901","wikidata":"https://www.wikidata.org/wiki/Q287251","display_name":"Kurtosis","level":2,"score":0.8187206983566284},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.5762993097305298},{"id":"https://openalex.org/C51432778","wikidata":"https://www.wikidata.org/wiki/Q1259145","display_name":"Independent component analysis","level":2,"score":0.4999697208404541},{"id":"https://openalex.org/C47432892","wikidata":"https://www.wikidata.org/wiki/Q831390","display_name":"Wavelet","level":2,"score":0.4771296977996826},{"id":"https://openalex.org/C34736171","wikidata":"https://www.wikidata.org/wiki/Q918333","display_name":"Preprocessor","level":2,"score":0.470303475856781},{"id":"https://openalex.org/C63479239","wikidata":"https://www.wikidata.org/wiki/Q7353546","display_name":"Robustness (evolution)","level":3,"score":0.4677828550338745},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4635770618915558},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.45404118299484253},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4278803765773773},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3802814483642578},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.32282862067222595},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D001021","descriptor_name":"Aortic Valve","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D001021","descriptor_name":"Aortic Valve","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D001021","descriptor_name":"Aortic Valve","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D004562","descriptor_name":"Electrocardiography","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004562","descriptor_name":"Electrocardiography","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004562","descriptor_name":"Electrocardiography","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006334","descriptor_name":"Heart Function Tests","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D006334","descriptor_name":"Heart Function Tests","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D006334","descriptor_name":"Heart Function Tests","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D006339","descriptor_name":"Heart Rate","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D006339","descriptor_name":"Heart Rate","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D006339","descriptor_name":"Heart Rate","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012815","descriptor_name":"Signal Processing, Computer-Assisted","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012815","descriptor_name":"Signal Processing, Computer-Assisted","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012815","descriptor_name":"Signal Processing, Computer-Assisted","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D061725","descriptor_name":"Accelerometry","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D061725","descriptor_name":"Accelerometry","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D061725","descriptor_name":"Accelerometry","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.1109/jbhi.2018.2829608","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jbhi.2018.2829608","pdf_url":null,"source":{"id":"https://openalex.org/S2495854775","display_name":"IEEE Journal of Biomedical and Health Informatics","issn_l":"2168-2194","issn":["2168-2194","2168-2208"],"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 Journal of Biomedical and Health Informatics","raw_type":"journal-article"},{"id":"pmid:29993702","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/29993702","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,"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":"IEEE journal of biomedical and health informatics","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":31,"referenced_works":["https://openalex.org/W1569781326","https://openalex.org/W1968379679","https://openalex.org/W1990956587","https://openalex.org/W2000982976","https://openalex.org/W2007729863","https://openalex.org/W2043298623","https://openalex.org/W2065246548","https://openalex.org/W2066481362","https://openalex.org/W2074705361","https://openalex.org/W2087385144","https://openalex.org/W2088599378","https://openalex.org/W2102211631","https://openalex.org/W2120412249","https://openalex.org/W2148325642","https://openalex.org/W2162800060","https://openalex.org/W2247575651","https://openalex.org/W2288515473","https://openalex.org/W2295737948","https://openalex.org/W2320829705","https://openalex.org/W2513036905","https://openalex.org/W2516553530","https://openalex.org/W2530643226","https://openalex.org/W2538315610","https://openalex.org/W2539971051","https://openalex.org/W2543584958","https://openalex.org/W2768004733","https://openalex.org/W2967051820","https://openalex.org/W3012557973","https://openalex.org/W3127947511","https://openalex.org/W6661266497","https://openalex.org/W6675264869"],"related_works":["https://openalex.org/W4381516319","https://openalex.org/W1506384729","https://openalex.org/W2037499216","https://openalex.org/W4225568567","https://openalex.org/W4286378979","https://openalex.org/W2075698830","https://openalex.org/W3127045225","https://openalex.org/W3216026256","https://openalex.org/W1581491866","https://openalex.org/W1522930357"],"abstract_inverted_index":{"Accurate":[0],"detection":[1,175],"of":[2,35,133,149,166,171,177],"fiducial":[3],"points":[4],"in":[5,66],"a":[6,10,49,79,128,168,174],"seismocardiogram":[7],"(SCG)":[8],"is":[9,39,59,88,95,116,137],"challenging":[11],"research":[12],"problem":[13],"for":[14,24,118],"its":[15],"clinical":[16],"application.":[17],"In":[18],"this":[19],"paper,":[20],"an":[21,163],"automated":[22],"method":[23,42,136,160],"detecting":[25],"aortic":[26],"valve":[27],"opening":[28],"(AO)":[29],"instants":[30],"using":[31,90,97,139],"the":[32,36,54,98,102,134,146,159],"dorso-ventral":[33],"component":[34],"SCG":[37,143,153],"signal":[38,64,87],"proposed.":[40],"This":[41],"does":[43],"not":[44],"require":[45],"electrocardiogram":[46],"(ECG)":[47],"as":[48],"reference":[50],"signal.":[51],"After":[52],"preprocessing":[53],"SCG,":[55],"multiscale":[56,107],"wavelet":[57,68],"decomposition":[58],"carried":[60],"out":[61],"to":[62],"get":[63],"components":[65],"different":[67],"subbands.":[69],"The":[70,86,109,131],"subbands":[71],"having":[72],"possible":[73],"AO":[74,123],"peaks":[75,124],"are":[76,125],"selected":[77,91],"by":[78,113,127],"newly":[80],"proposed":[81,103,135],"dominant-multiscale-kurtosis-":[82],"and":[83,93,141,152,173],"dominant-multiscale-central-frequency-based":[84],"criterion.":[85],"reconstructed":[89],"subbands,":[92],"it":[94],"emphasized":[96],"weights":[99],"derived":[100],"from":[101,145],"relative":[104],"squared":[105],"dominant":[106],"kurtosis.":[108],"Shannon":[110],"energy":[111],"followed":[112],"autocorrelation":[114],"coefficients":[115],"computed":[117],"systole":[119],"envelope":[120],"construction.":[121],"Finally,":[122],"detected":[126],"Gaussian-derivative-filtering-based":[129],"scheme.":[130],"robustness":[132],"tested":[138],"clean":[140],"noisy":[142],"signals":[144],"combined":[147],"measurement":[148],"ECG,":[150],"breathing,":[151],"database.":[154],"Evaluation":[155],"results":[156],"show":[157],"that":[158],"can":[161],"achieve":[162],"average":[164],"sensitivity":[165],"94%,":[167],"prediction":[169],"rate":[170],"90%,":[172],"accuracy":[176],"86%":[178],"approximately":[179],"over":[180],"4585":[181],"analyzed":[182],"beats.":[183]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":5},{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":11},{"year":2022,"cited_by_count":6},{"year":2021,"cited_by_count":14},{"year":2020,"cited_by_count":11},{"year":2019,"cited_by_count":11},{"year":2018,"cited_by_count":1}],"updated_date":"2026-08-19T15:00:24.278416","created_date":"2025-10-10T00:00:00"}