{"id":"https://openalex.org/W1986179711","doi":"https://doi.org/10.1155/2007/58358","title":"A Principal Component Regression Approach for Estimating Ventricular Repolarization Duration Variability","display_name":"A Principal Component Regression Approach for Estimating Ventricular Repolarization Duration Variability","publication_year":2007,"publication_date":"2007-01-08","ids":{"openalex":"https://openalex.org/W1986179711","doi":"https://doi.org/10.1155/2007/58358","mag":"1986179711"},"language":"en","primary_location":{"id":"doi:10.1155/2007/58358","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2007/58358","pdf_url":"https://asp-eurasipjournals.springeropen.com/counter/pdf/10.1155/2007/58358","source":{"id":"https://openalex.org/S35920007","display_name":"EURASIP Journal on Advances in Signal Processing","issn_l":"1687-6172","issn":["1687-6172","1687-6180"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Advances in Signal Processing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://asp-eurasipjournals.springeropen.com/counter/pdf/10.1155/2007/58358","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5035530541","display_name":"Mika P. Tarvainen","orcid":"https://orcid.org/0000-0001-8686-5395"},"institutions":[{"id":"https://openalex.org/I175532246","display_name":"University of Eastern Finland","ror":"https://ror.org/00cyydd11","country_code":"FI","type":"education","lineage":["https://openalex.org/I175532246"]}],"countries":["FI"],"is_corresponding":true,"raw_author_name":"Mika P. Tarvainen","raw_affiliation_strings":["Department of Physics, University of Kuopio, P.O. Box 1627, Kuopio, 70211, Finland","Department of Physics, University of Kuopio, Kuopio, Finland"],"affiliations":[{"raw_affiliation_string":"Department of Physics, University of Kuopio, P.O. Box 1627, Kuopio, 70211, Finland","institution_ids":["https://openalex.org/I175532246"]},{"raw_affiliation_string":"Department of Physics, University of Kuopio, Kuopio, Finland","institution_ids":["https://openalex.org/I175532246"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5042020527","display_name":"Tomi Laitinen","orcid":"https://orcid.org/0009-0007-7882-5159"},"institutions":[{"id":"https://openalex.org/I4210092991","display_name":"Kuopio University Hospital","ror":"https://ror.org/00fqdfs68","country_code":"FI","type":"healthcare","lineage":["https://openalex.org/I4210092991"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Tomi Laitinen","raw_affiliation_strings":["Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, P.O. Box 1777, Kuopio, 70211, Finland","Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, Kuopio, Finland#TAB#"],"affiliations":[{"raw_affiliation_string":"Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, P.O. Box 1777, Kuopio, 70211, Finland","institution_ids":["https://openalex.org/I4210092991"]},{"raw_affiliation_string":"Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, Kuopio, Finland#TAB#","institution_ids":["https://openalex.org/I4210092991"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5038873955","display_name":"Tiina Lyyra\u2010Laitinen","orcid":null},"institutions":[{"id":"https://openalex.org/I4210092991","display_name":"Kuopio University Hospital","ror":"https://ror.org/00fqdfs68","country_code":"FI","type":"healthcare","lineage":["https://openalex.org/I4210092991"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Tiina Lyyra-Laitinen","raw_affiliation_strings":["Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, P.O. Box 1777, Kuopio, 70211, Finland","2Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, Kuopio, Finland#TAB#"],"affiliations":[{"raw_affiliation_string":"Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, P.O. Box 1777, Kuopio, 70211, Finland","institution_ids":["https://openalex.org/I4210092991"]},{"raw_affiliation_string":"2Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, Kuopio, Finland#TAB#","institution_ids":["https://openalex.org/I4210092991"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5079933687","display_name":"Juha\u2010Pekka Niskanen","orcid":null},"institutions":[{"id":"https://openalex.org/I175532246","display_name":"University of Eastern Finland","ror":"https://ror.org/00cyydd11","country_code":"FI","type":"education","lineage":["https://openalex.org/I175532246"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Juha-Pekka Niskanen","raw_affiliation_strings":["Department of Physics, University of Kuopio, P.O. Box 1627, Kuopio, 70211, Finland","Department of Physics, University of Kuopio, Kuopio, Finland"],"affiliations":[{"raw_affiliation_string":"Department of Physics, University of Kuopio, P.O. Box 1627, Kuopio, 70211, Finland","institution_ids":["https://openalex.org/I175532246"]},{"raw_affiliation_string":"Department of Physics, University of Kuopio, Kuopio, Finland","institution_ids":["https://openalex.org/I175532246"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5006622916","display_name":"Pasi A. Karjalainen","orcid":"https://orcid.org/0000-0002-1267-493X"},"institutions":[{"id":"https://openalex.org/I175532246","display_name":"University of Eastern Finland","ror":"https://ror.org/00cyydd11","country_code":"FI","type":"education","lineage":["https://openalex.org/I175532246"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Pasi A. Karjalainen","raw_affiliation_strings":["Department of Physics, University of Kuopio, P.O. Box 1627, Kuopio, 70211, Finland","Department of Physics, University of Kuopio, Kuopio, Finland"],"affiliations":[{"raw_affiliation_string":"Department of Physics, University of Kuopio, P.O. Box 1627, Kuopio, 70211, Finland","institution_ids":["https://openalex.org/I175532246"]},{"raw_affiliation_string":"Department of Physics, University of Kuopio, Kuopio, Finland","institution_ids":["https://openalex.org/I175532246"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5035530541"],"corresponding_institution_ids":["https://openalex.org/I175532246"],"apc_list":{"value":1140,"currency":"GBP","value_usd":1398},"apc_paid":{"value":1140,"currency":"GBP","value_usd":1398},"fwci":0.2012,"has_fulltext":true,"cited_by_count":1,"citation_normalized_percentile":{"value":0.5940962,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"2007","issue":"1","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10217","display_name":"Cardiac electrophysiology and arrhythmias","score":0.9984999895095825,"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"}},"topics":[{"id":"https://openalex.org/T10217","display_name":"Cardiac electrophysiology and arrhythmias","score":0.9984999895095825,"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/T11021","display_name":"ECG Monitoring and Analysis","score":0.9940000176429749,"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/T10876","display_name":"Fault Detection and Control Systems","score":0.992900013923645,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/principal-component-analysis","display_name":"Principal component analysis","score":0.7290268540382385},{"id":"https://openalex.org/keywords/heart-rate-variability","display_name":"Heart rate variability","score":0.6658148765563965},{"id":"https://openalex.org/keywords/regression","display_name":"Regression","score":0.6159123182296753},{"id":"https://openalex.org/keywords/ventricular-repolarization","display_name":"Ventricular Repolarization","score":0.5886358022689819},{"id":"https://openalex.org/keywords/interval","display_name":"Interval (graph theory)","score":0.5762501955032349},{"id":"https://openalex.org/keywords/repolarization","display_name":"Repolarization","score":0.5304704904556274},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.5019721984863281},{"id":"https://openalex.org/keywords/duration","display_name":"Duration (music)","score":0.45608729124069214},{"id":"https://openalex.org/keywords/regression-analysis","display_name":"Regression analysis","score":0.4501117765903473},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.43321675062179565},{"id":"https://openalex.org/keywords/electrocardiography","display_name":"Electrocardiography","score":0.4296647012233734},{"id":"https://openalex.org/keywords/component","display_name":"Component (thermodynamics)","score":0.426903635263443},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4255565106868744},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.38262322545051575},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.37743043899536133},{"id":"https://openalex.org/keywords/cardiology","display_name":"Cardiology","score":0.3412025570869446},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.27077990770339966},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.255909264087677},{"id":"https://openalex.org/keywords/internal-medicine","display_name":"Internal medicine","score":0.2527327537536621},{"id":"https://openalex.org/keywords/heart-rate","display_name":"Heart rate","score":0.244726300239563},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.08995306491851807},{"id":"https://openalex.org/keywords/blood-pressure","display_name":"Blood pressure","score":0.07551485300064087}],"concepts":[{"id":"https://openalex.org/C27438332","wikidata":"https://www.wikidata.org/wiki/Q2873","display_name":"Principal component analysis","level":2,"score":0.7290268540382385},{"id":"https://openalex.org/C71635504","wikidata":"https://www.wikidata.org/wiki/Q933954","display_name":"Heart rate variability","level":4,"score":0.6658148765563965},{"id":"https://openalex.org/C83546350","wikidata":"https://www.wikidata.org/wiki/Q1139051","display_name":"Regression","level":2,"score":0.6159123182296753},{"id":"https://openalex.org/C2910564629","wikidata":"https://www.wikidata.org/wiki/Q30479","display_name":"Ventricular Repolarization","level":4,"score":0.5886358022689819},{"id":"https://openalex.org/C2778067643","wikidata":"https://www.wikidata.org/wiki/Q166507","display_name":"Interval (graph theory)","level":2,"score":0.5762501955032349},{"id":"https://openalex.org/C146403970","wikidata":"https://www.wikidata.org/wiki/Q205729","display_name":"Repolarization","level":3,"score":0.5304704904556274},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.5019721984863281},{"id":"https://openalex.org/C112758219","wikidata":"https://www.wikidata.org/wiki/Q16038819","display_name":"Duration (music)","level":2,"score":0.45608729124069214},{"id":"https://openalex.org/C152877465","wikidata":"https://www.wikidata.org/wiki/Q208042","display_name":"Regression analysis","level":2,"score":0.4501117765903473},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.43321675062179565},{"id":"https://openalex.org/C2780040984","wikidata":"https://www.wikidata.org/wiki/Q79785","display_name":"Electrocardiography","level":2,"score":0.4296647012233734},{"id":"https://openalex.org/C168167062","wikidata":"https://www.wikidata.org/wiki/Q1117970","display_name":"Component (thermodynamics)","level":2,"score":0.426903635263443},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4255565106868744},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.38262322545051575},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.37743043899536133},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.3412025570869446},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.27077990770339966},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.255909264087677},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.2527327537536621},{"id":"https://openalex.org/C2777953023","wikidata":"https://www.wikidata.org/wiki/Q1073121","display_name":"Heart rate","level":3,"score":0.244726300239563},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.08995306491851807},{"id":"https://openalex.org/C84393581","wikidata":"https://www.wikidata.org/wiki/Q82642","display_name":"Blood pressure","level":2,"score":0.07551485300064087},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0},{"id":"https://openalex.org/C185263204","wikidata":"https://www.wikidata.org/wiki/Q1154774","display_name":"Electrophysiology","level":2,"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/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1155/2007/58358","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2007/58358","pdf_url":"https://asp-eurasipjournals.springeropen.com/counter/pdf/10.1155/2007/58358","source":{"id":"https://openalex.org/S35920007","display_name":"EURASIP Journal on Advances in Signal Processing","issn_l":"1687-6172","issn":["1687-6172","1687-6180"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Advances in Signal Processing","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:1bb88e0cb30e414682d067803a0a7e10","is_oa":true,"landing_page_url":"https://doaj.org/article/1bb88e0cb30e414682d067803a0a7e10","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"EURASIP Journal on Advances in Signal Processing, Vol 2007 (2007)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1155/2007/58358","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2007/58358","pdf_url":"https://asp-eurasipjournals.springeropen.com/counter/pdf/10.1155/2007/58358","source":{"id":"https://openalex.org/S35920007","display_name":"EURASIP Journal on Advances in Signal Processing","issn_l":"1687-6172","issn":["1687-6172","1687-6180"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Advances in Signal Processing","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/3","score":0.7200000286102295,"display_name":"Good health and well-being"}],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W1986179711.pdf","grobid_xml":"https://content.openalex.org/works/W1986179711.grobid-xml"},"referenced_works_count":22,"referenced_works":["https://openalex.org/W1973076271","https://openalex.org/W1984155701","https://openalex.org/W1984313043","https://openalex.org/W1994303078","https://openalex.org/W2000909451","https://openalex.org/W2024337285","https://openalex.org/W2047152727","https://openalex.org/W2054807197","https://openalex.org/W2066593001","https://openalex.org/W2071792255","https://openalex.org/W2072211602","https://openalex.org/W2075872682","https://openalex.org/W2088720900","https://openalex.org/W2115939577","https://openalex.org/W2146725500","https://openalex.org/W2148694408","https://openalex.org/W2158611746","https://openalex.org/W2162273778","https://openalex.org/W2163074678","https://openalex.org/W2168494832","https://openalex.org/W4240688695","https://openalex.org/W4292023222"],"related_works":["https://openalex.org/W1977268087","https://openalex.org/W2402667573","https://openalex.org/W2032592752","https://openalex.org/W2372521956","https://openalex.org/W2054469718","https://openalex.org/W2399717276","https://openalex.org/W382198080","https://openalex.org/W2100919827","https://openalex.org/W2371138490","https://openalex.org/W2028235706"],"abstract_inverted_index":{"Ventricular":[0],"repolarization":[1],"duration":[2],"(VRD)":[3],"is":[4,27,79,90,102,126],"affected":[5],"by":[6,30],"heart":[7,23],"rate":[8],"and":[9,12,38,97,109],"autonomic":[10],"control,":[11],"thus":[13],"VRD":[14,25],"varies":[15],"in":[16,18],"time":[17,33],"a":[19,64,99,121],"similar":[20],"way":[21],"as":[22,98],"rate.":[24],"variability":[26,107],"commonly":[28],"assessed":[29],"determining":[31],"the":[32,51,77,117,124],"differences":[34],"between":[35],"successive":[36],"R-":[37],"T-waves,":[39],"that":[40,80],"is,":[41],"RT":[42,47,71,94,106],"intervals.":[43],"Traditional":[44],"methods":[45],"for":[46,69],"interval":[48,95],"detection":[49,52],"necessitate":[50,84],"of":[53,76],"either":[54],"T-wave":[55,85],"apexes":[56],"or":[57],"offsets.":[58],"In":[59],"this":[60],"paper,":[61],"we":[62],"propose":[63],"principal-component-regression-":[65],"(PCR-)":[66],"based":[67],"method":[68,78,89,125],"estimating":[70],"variability.":[72],"The":[73,87],"main":[74],"benefit":[75],"it":[81,101],"does":[82],"not":[83],"detection.":[86],"proposed":[88],"compared":[91],"with":[92],"traditional":[93,118],"measures,":[96],"result,":[100],"observed":[103],"to":[104,110,114,128],"estimate":[105],"accurately":[108],"be":[111],"less":[112],"sensitive":[113],"noise":[115],"than":[116],"methods.":[119],"As":[120],"specific":[122],"application,":[123],"applied":[127],"exercise":[129],"electrocardiogram":[130],"(ECG)":[131],"recordings.":[132]},"counts_by_year":[],"updated_date":"2026-03-20T23:20:44.827607","created_date":"2025-10-10T00:00:00"}
