{"id":"https://openalex.org/W1985722276","doi":"https://doi.org/10.1109/tbcas.2014.2359995","title":"Time-Lapse Imaging of Human Heart Motion With Switched Array UWB Radar","display_name":"Time-Lapse Imaging of Human Heart Motion With Switched Array UWB Radar","publication_year":2014,"publication_date":"2014-10-01","ids":{"openalex":"https://openalex.org/W1985722276","doi":"https://doi.org/10.1109/tbcas.2014.2359995","mag":"1985722276","pmid":"https://pubmed.ncbi.nlm.nih.gov/25350945"},"language":"en","primary_location":{"id":"doi:10.1109/tbcas.2014.2359995","is_oa":true,"landing_page_url":"https://doi.org/10.1109/tbcas.2014.2359995","pdf_url":"https://ieeexplore.ieee.org/ielx7/4156126/6949172/06936390.pdf","source":{"id":"https://openalex.org/S80299757","display_name":"IEEE Transactions on Biomedical Circuits and Systems","issn_l":"1932-4545","issn":["1932-4545","1940-9990"],"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 Biomedical Circuits and Systems","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","pubmed"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://ieeexplore.ieee.org/ielx7/4156126/6949172/06936390.pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5016604361","display_name":"Sverre Brovoll","orcid":"https://orcid.org/0000-0002-9854-0114"},"institutions":[{"id":"https://openalex.org/I163244428","display_name":"Norwegian Defence Research Establishment","ror":"https://ror.org/0098gnz32","country_code":"NO","type":"facility","lineage":["https://openalex.org/I163244428"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"Sverre Brovoll","raw_affiliation_strings":["Norwegian Defence Research Establishment (FFI), Kjeller, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Norwegian Defence Research Establishment (FFI), Kjeller, Norway","institution_ids":["https://openalex.org/I163244428"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5045288664","display_name":"Tor Berger","orcid":"https://orcid.org/0009-0006-7998-5093"},"institutions":[{"id":"https://openalex.org/I163244428","display_name":"Norwegian Defence Research Establishment","ror":"https://ror.org/0098gnz32","country_code":"NO","type":"facility","lineage":["https://openalex.org/I163244428"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"Tor Berger","raw_affiliation_strings":["Norwegian Defence Research Establishment (FFI), Kjeller, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Norwegian Defence Research Establishment (FFI), Kjeller, Norway","institution_ids":["https://openalex.org/I163244428"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044709803","display_name":"Yoann Paichard","orcid":null},"institutions":[{"id":"https://openalex.org/I163244428","display_name":"Norwegian Defence Research Establishment","ror":"https://ror.org/0098gnz32","country_code":"NO","type":"facility","lineage":["https://openalex.org/I163244428"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"Yoann Paichard","raw_affiliation_strings":["Norwegian Defence Research Establishment (FFI), Kjeller, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Norwegian Defence Research Establishment (FFI), Kjeller, Norway","institution_ids":["https://openalex.org/I163244428"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016645131","display_name":"\u00d8yvind Aardal","orcid":null},"institutions":[{"id":"https://openalex.org/I163244428","display_name":"Norwegian Defence Research Establishment","ror":"https://ror.org/0098gnz32","country_code":"NO","type":"facility","lineage":["https://openalex.org/I163244428"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"Oyvind Aardal","raw_affiliation_strings":["Norwegian Defence Research Establishment (FFI), Kjeller, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Norwegian Defence Research Establishment (FFI), Kjeller, Norway","institution_ids":["https://openalex.org/I163244428"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083347038","display_name":"Tor Sverre Lande","orcid":"https://orcid.org/0000-0002-1880-2840"},"institutions":[{"id":"https://openalex.org/I184942183","display_name":"University of Oslo","ror":"https://ror.org/01xtthb56","country_code":"NO","type":"education","lineage":["https://openalex.org/I184942183"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"Tor Sverre Lande","raw_affiliation_strings":["Department of Informatics, University of Oslo, Blindern, Oslo, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Informatics, University of Oslo, Blindern, Oslo, Norway","institution_ids":["https://openalex.org/I184942183"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5008551871","display_name":"Svein\u2010Erik Hamran","orcid":"https://orcid.org/0000-0002-1078-449X"},"institutions":[{"id":"https://openalex.org/I163244428","display_name":"Norwegian Defence Research Establishment","ror":"https://ror.org/0098gnz32","country_code":"NO","type":"facility","lineage":["https://openalex.org/I163244428"]},{"id":"https://openalex.org/I184942183","display_name":"University of Oslo","ror":"https://ror.org/01xtthb56","country_code":"NO","type":"education","lineage":["https://openalex.org/I184942183"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"Svein-Erik Hamran","raw_affiliation_strings":["Department of Informatics, University of Oslo, Blindern, Oslo, Norway","Norwegian Defence Research Establishment (FFI), Kjeller, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Informatics, University of Oslo, Blindern, Oslo, Norway","institution_ids":["https://openalex.org/I184942183"]},{"raw_affiliation_string":"Norwegian Defence Research Establishment (FFI), Kjeller, Norway","institution_ids":["https://openalex.org/I163244428"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":2645,"currency":"USD","value_usd":2645},"apc_paid":null,"fwci":2.3135,"has_fulltext":true,"cited_by_count":53,"citation_normalized_percentile":{"value":0.87145618,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":"8","issue":"5","first_page":"704","last_page":"715"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11739","display_name":"Microwave Imaging and Scattering Analysis","score":1.0,"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/T11739","display_name":"Microwave Imaging and Scattering Analysis","score":1.0,"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/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":0.9988999962806702,"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/T11038","display_name":"Advanced SAR Imaging Techniques","score":0.998199999332428,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/heartbeat","display_name":"Heartbeat","score":0.8909072875976562},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.7166473865509033},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.5898672342300415},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5393616557121277},{"id":"https://openalex.org/keywords/radar-imaging","display_name":"Radar imaging","score":0.5305370092391968},{"id":"https://openalex.org/keywords/human-heart","display_name":"Human heart","score":0.5048463940620422},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.4735799729824066},{"id":"https://openalex.org/keywords/continuous-wave-radar","display_name":"Continuous-wave radar","score":0.45295700430870056},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.42903149127960205},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.3846818804740906},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.32289600372314453},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.32226014137268066},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.07489591836929321}],"concepts":[{"id":"https://openalex.org/C13852961","wikidata":"https://www.wikidata.org/wiki/Q17021880","display_name":"Heartbeat","level":2,"score":0.8909072875976562},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.7166473865509033},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.5898672342300415},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5393616557121277},{"id":"https://openalex.org/C10929652","wikidata":"https://www.wikidata.org/wiki/Q7279985","display_name":"Radar imaging","level":3,"score":0.5305370092391968},{"id":"https://openalex.org/C2983437453","wikidata":"https://www.wikidata.org/wiki/Q1072","display_name":"Human heart","level":2,"score":0.5048463940620422},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.4735799729824066},{"id":"https://openalex.org/C59584813","wikidata":"https://www.wikidata.org/wiki/Q1029234","display_name":"Continuous-wave radar","level":4,"score":0.45295700430870056},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.42903149127960205},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.3846818804740906},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.32289600372314453},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.32226014137268066},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.07489591836929321},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.0},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000328","descriptor_name":"Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000328","descriptor_name":"Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000328","descriptor_name":"Adult","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":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004574","descriptor_name":"Electromagnetic Fields","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004574","descriptor_name":"Electromagnetic Fields","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004574","descriptor_name":"Electromagnetic Fields","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004867","descriptor_name":"Equipment Design","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004867","descriptor_name":"Equipment Design","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004867","descriptor_name":"Equipment Design","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006321","descriptor_name":"Heart","qualifier_ui":"Q000033","qualifier_name":"anatomy & histology","is_major_topic":false},{"descriptor_ui":"D006321","descriptor_name":"Heart","qualifier_ui":"Q000033","qualifier_name":"anatomy & histology","is_major_topic":false},{"descriptor_ui":"D006321","descriptor_name":"Heart","qualifier_ui":"Q000033","qualifier_name":"anatomy & histology","is_major_topic":false},{"descriptor_ui":"D006321","descriptor_name":"Heart","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D006321","descriptor_name":"Heart","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D006321","descriptor_name":"Heart","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":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D009068","descriptor_name":"Movement","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D009068","descriptor_name":"Movement","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D009068","descriptor_name":"Movement","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":"D057791","descriptor_name":"Cardiac Imaging Techniques","qualifier_ui":"Q000295","qualifier_name":"instrumentation","is_major_topic":false},{"descriptor_ui":"D057791","descriptor_name":"Cardiac Imaging Techniques","qualifier_ui":"Q000295","qualifier_name":"instrumentation","is_major_topic":false},{"descriptor_ui":"D057791","descriptor_name":"Cardiac Imaging Techniques","qualifier_ui":"Q000295","qualifier_name":"instrumentation","is_major_topic":false},{"descriptor_ui":"D057791","descriptor_name":"Cardiac Imaging Techniques","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D057791","descriptor_name":"Cardiac Imaging Techniques","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D057791","descriptor_name":"Cardiac Imaging Techniques","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.1109/tbcas.2014.2359995","is_oa":true,"landing_page_url":"https://doi.org/10.1109/tbcas.2014.2359995","pdf_url":"https://ieeexplore.ieee.org/ielx7/4156126/6949172/06936390.pdf","source":{"id":"https://openalex.org/S80299757","display_name":"IEEE Transactions on Biomedical Circuits and Systems","issn_l":"1932-4545","issn":["1932-4545","1940-9990"],"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 Biomedical Circuits and Systems","raw_type":"journal-article"},{"id":"pmid:25350945","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/25350945","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 transactions on biomedical circuits and systems","raw_type":"Journal Article"}],"best_oa_location":{"id":"doi:10.1109/tbcas.2014.2359995","is_oa":true,"landing_page_url":"https://doi.org/10.1109/tbcas.2014.2359995","pdf_url":"https://ieeexplore.ieee.org/ielx7/4156126/6949172/06936390.pdf","source":{"id":"https://openalex.org/S80299757","display_name":"IEEE Transactions on Biomedical Circuits and Systems","issn_l":"1932-4545","issn":["1932-4545","1940-9990"],"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 Biomedical Circuits and Systems","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being","score":0.5299999713897705}],"awards":[{"id":"https://openalex.org/G5081184719","display_name":null,"funder_award_id":"187857/S10","funder_id":"https://openalex.org/F4320323299","funder_display_name":"Norges Forskningsr\u00e5d"}],"funders":[{"id":"https://openalex.org/F4320323299","display_name":"Norges Forskningsr\u00e5d","ror":"https://ror.org/00epmv149"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W1985722276.pdf","grobid_xml":"https://content.openalex.org/works/W1985722276.grobid-xml"},"referenced_works_count":29,"referenced_works":["https://openalex.org/W1524573041","https://openalex.org/W1903804808","https://openalex.org/W1979845593","https://openalex.org/W1984165020","https://openalex.org/W1999048761","https://openalex.org/W2004034565","https://openalex.org/W2017791181","https://openalex.org/W2022141212","https://openalex.org/W2058367223","https://openalex.org/W2058916633","https://openalex.org/W2072916732","https://openalex.org/W2075959322","https://openalex.org/W2078741394","https://openalex.org/W2080076644","https://openalex.org/W2085146467","https://openalex.org/W2099954677","https://openalex.org/W2112714522","https://openalex.org/W2123014679","https://openalex.org/W2126557865","https://openalex.org/W2135165445","https://openalex.org/W2144454196","https://openalex.org/W2147627803","https://openalex.org/W2150274370","https://openalex.org/W2156753567","https://openalex.org/W2165138405","https://openalex.org/W2315473495","https://openalex.org/W3142371492","https://openalex.org/W6683232754","https://openalex.org/W6684545810"],"related_works":["https://openalex.org/W3126346180","https://openalex.org/W2555581363","https://openalex.org/W2091887884","https://openalex.org/W4313855562","https://openalex.org/W2142793224","https://openalex.org/W2091422131","https://openalex.org/W2742737769","https://openalex.org/W3154381281","https://openalex.org/W2904197056","https://openalex.org/W2892233029"],"abstract_inverted_index":{"Radar":[0],"systems":[1,11],"for":[2,22],"detection":[3],"of":[4,26,85,124,166,178],"human":[5,28,39,92,168],"heartbeats":[6],"have":[7],"mostly":[8],"been":[9],"single-channel":[10],"with":[12,55,115,129],"limited":[13],"spatial":[14,138],"resolution.":[15],"In":[16],"this":[17],"paper,":[18],"a":[19,91],"radar":[20,35,65,158,164],"system":[21,62],"ultra-wideband":[23],"(UWB)":[24],"imaging":[25,165],"the":[27,34,38,41,48,64,67,86,98,107,116,120,125,130,134,157,167,175,179],"heart":[29,99,135,140,169],"is":[30,43,52,101,142,149],"presented.":[31],"To":[32],"make":[33],"waves":[36],"penetrate":[37],"tissue":[40],"antenna":[42,51,60],"placed":[44],"very":[45],"close":[46],"to":[47,66,72,80,144],"body.":[49,108],"The":[50,109,137],"an":[53,59,74],"array":[54],"eight":[56],"elements,":[57],"and":[58,97,119,122,147],"switch":[61],"connects":[63],"individual":[68],"elements":[69],"in":[70,156],"sequence":[71],"form":[73,133],"image.":[75],"Successive":[76],"images":[77],"are":[78,95,154],"used":[79],"build":[81],"up":[82],"time-lapse":[83],"movies":[84,110],"beating":[87,117],"heart.":[88,180],"Measurements":[89],"on":[90,174],"test":[93],"subject":[94],"presented":[96],"motion":[100,113,141],"estimated":[102],"at":[103],"different":[104],"locations":[105],"inside":[106],"show":[111],"rhythmic":[112],"consistent":[114],"heart,":[118],"location":[121],"shape":[123],"reflections":[126],"correspond":[127],"well":[128],"expected":[131],"response":[132],"wall.":[136],"dependent":[139],"compared":[143],"ECG":[145],"recordings,":[146],"it":[148],"confirmed":[150],"that":[151,163],"heartbeat":[152],"modulations":[153],"seen":[155],"data.":[159],"This":[160],"work":[161],"shows":[162],"may":[170],"provide":[171],"valuable":[172],"information":[173],"mechanical":[176],"movement":[177]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":6},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":6},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":8},{"year":2019,"cited_by_count":8},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":5},{"year":2016,"cited_by_count":5},{"year":2015,"cited_by_count":4}],"updated_date":"2026-08-21T09:56:20.448147","created_date":"2025-10-10T00:00:00"}