{"id":"https://openalex.org/W4308083594","doi":"https://doi.org/10.1109/iwbis56557.2022.9924664","title":"Hierarchical Vision Transformers for Cardiac Ejection Fraction Estimation","display_name":"Hierarchical Vision Transformers for Cardiac Ejection Fraction Estimation","publication_year":2022,"publication_date":"2022-10-01","ids":{"openalex":"https://openalex.org/W4308083594","doi":"https://doi.org/10.1109/iwbis56557.2022.9924664"},"language":"en","primary_location":{"id":"doi:10.1109/iwbis56557.2022.9924664","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iwbis56557.2022.9924664","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2022 7th International Workshop on Big Data and Information Security (IWBIS)","raw_type":"proceedings-article"},"type":"preprint","indexed_in":["arxiv","crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2304.00177","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5069397372","display_name":"Lhuqita Fazry","orcid":"https://orcid.org/0009-0004-8494-9375"},"institutions":[{"id":"https://openalex.org/I29617571","display_name":"University of Indonesia","ror":"https://ror.org/0116zj450","country_code":"ID","type":"education","lineage":["https://openalex.org/I29617571"]}],"countries":["ID"],"is_corresponding":true,"raw_author_name":"Lhuqita Fazry","raw_affiliation_strings":["Universitas Indonesia,Faculty of Computer Science,Depok,Indonesia","Faculty of Computer Science, Universitas Indonesia, Depok, Indonesia"],"affiliations":[{"raw_affiliation_string":"Universitas Indonesia,Faculty of Computer Science,Depok,Indonesia","institution_ids":["https://openalex.org/I29617571"]},{"raw_affiliation_string":"Faculty of Computer Science, Universitas Indonesia, Depok, Indonesia","institution_ids":["https://openalex.org/I29617571"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5068993543","display_name":"Asep Haryono","orcid":"https://orcid.org/0000-0001-5679-0193"},"institutions":[{"id":"https://openalex.org/I29617571","display_name":"University of Indonesia","ror":"https://ror.org/0116zj450","country_code":"ID","type":"education","lineage":["https://openalex.org/I29617571"]}],"countries":["ID"],"is_corresponding":false,"raw_author_name":"Asep Haryono","raw_affiliation_strings":["Universitas Indonesia,Faculty of Computer Science,Depok,Indonesia","Faculty of Computer Science, Universitas Indonesia, Depok, Indonesia"],"affiliations":[{"raw_affiliation_string":"Universitas Indonesia,Faculty of Computer Science,Depok,Indonesia","institution_ids":["https://openalex.org/I29617571"]},{"raw_affiliation_string":"Faculty of Computer Science, Universitas Indonesia, Depok, Indonesia","institution_ids":["https://openalex.org/I29617571"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5042047006","display_name":"Nuzulul Khairu Nissa","orcid":"https://orcid.org/0000-0002-7799-976X"},"institutions":[{"id":"https://openalex.org/I29617571","display_name":"University of Indonesia","ror":"https://ror.org/0116zj450","country_code":"ID","type":"education","lineage":["https://openalex.org/I29617571"]}],"countries":["ID"],"is_corresponding":false,"raw_author_name":"Nuzulul Khairu Nissa","raw_affiliation_strings":["Universitas Indonesia,Faculty of Computer Science,Depok,Indonesia","Faculty of Computer Science, Universitas Indonesia, Depok, Indonesia"],"affiliations":[{"raw_affiliation_string":"Universitas Indonesia,Faculty of Computer Science,Depok,Indonesia","institution_ids":["https://openalex.org/I29617571"]},{"raw_affiliation_string":"Faculty of Computer Science, Universitas Indonesia, Depok, Indonesia","institution_ids":["https://openalex.org/I29617571"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027154677","display_name":"Sunarno Sunarno","orcid":"https://orcid.org/0000-0002-7100-0628"},"institutions":[{"id":"https://openalex.org/I29617571","display_name":"University of Indonesia","ror":"https://ror.org/0116zj450","country_code":"ID","type":"education","lineage":["https://openalex.org/I29617571"]}],"countries":["ID"],"is_corresponding":false,"raw_author_name":"Sunarno","raw_affiliation_strings":["Universitas Indonesia,Faculty of Computer Science,Depok,Indonesia","Faculty of Computer Science, Universitas Indonesia, Depok, Indonesia"],"affiliations":[{"raw_affiliation_string":"Universitas Indonesia,Faculty of Computer Science,Depok,Indonesia","institution_ids":["https://openalex.org/I29617571"]},{"raw_affiliation_string":"Faculty of Computer Science, Universitas Indonesia, Depok, Indonesia","institution_ids":["https://openalex.org/I29617571"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037073342","display_name":"Naufal Muhammad Hirzi","orcid":null},"institutions":[{"id":"https://openalex.org/I29617571","display_name":"University of Indonesia","ror":"https://ror.org/0116zj450","country_code":"ID","type":"education","lineage":["https://openalex.org/I29617571"]}],"countries":["ID"],"is_corresponding":false,"raw_author_name":"Naufal Muhammad Hirzi","raw_affiliation_strings":["Universitas Indonesia,Faculty of Computer Science,Depok,Indonesia","Faculty of Computer Science, Universitas Indonesia, Depok, Indonesia"],"affiliations":[{"raw_affiliation_string":"Universitas Indonesia,Faculty of Computer Science,Depok,Indonesia","institution_ids":["https://openalex.org/I29617571"]},{"raw_affiliation_string":"Faculty of Computer Science, Universitas Indonesia, Depok, Indonesia","institution_ids":["https://openalex.org/I29617571"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037666948","display_name":"Muhammad Febrian Rachmadi","orcid":"https://orcid.org/0000-0003-1672-9149"},"institutions":[{"id":"https://openalex.org/I4210087238","display_name":"Kaken Pharmaceutical (Japan)","ror":"https://ror.org/0059xpe44","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210087238"]},{"id":"https://openalex.org/I29617571","display_name":"University of Indonesia","ror":"https://ror.org/0116zj450","country_code":"ID","type":"education","lineage":["https://openalex.org/I29617571"]},{"id":"https://openalex.org/I4210110652","display_name":"RIKEN","ror":"https://ror.org/01sjwvz98","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210110652"]}],"countries":["ID","JP"],"is_corresponding":false,"raw_author_name":"Muhammad Febrian Rachmadi","raw_affiliation_strings":["Universitas Indonesia,Faculty of Computer Science,Depok,Indonesia","RIKEN Research, Tokyo, Japan","Faculty of Computer Science, Universitas Indonesia, Depok, Indonesia"],"affiliations":[{"raw_affiliation_string":"Universitas Indonesia,Faculty of Computer Science,Depok,Indonesia","institution_ids":["https://openalex.org/I29617571"]},{"raw_affiliation_string":"RIKEN Research, Tokyo, Japan","institution_ids":["https://openalex.org/I4210087238","https://openalex.org/I4210110652"]},{"raw_affiliation_string":"Faculty of Computer Science, Universitas Indonesia, Depok, Indonesia","institution_ids":["https://openalex.org/I29617571"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5069933043","display_name":"Wisnu Jatmiko","orcid":"https://orcid.org/0000-0002-0530-7955"},"institutions":[{"id":"https://openalex.org/I29617571","display_name":"University of Indonesia","ror":"https://ror.org/0116zj450","country_code":"ID","type":"education","lineage":["https://openalex.org/I29617571"]}],"countries":["ID"],"is_corresponding":false,"raw_author_name":"Wisnu Jatmiko","raw_affiliation_strings":["Universitas Indonesia,Faculty of Computer Science,Depok,Indonesia","Faculty of Computer Science, Universitas Indonesia, Depok, Indonesia"],"affiliations":[{"raw_affiliation_string":"Universitas Indonesia,Faculty of Computer Science,Depok,Indonesia","institution_ids":["https://openalex.org/I29617571"]},{"raw_affiliation_string":"Faculty of Computer Science, Universitas Indonesia, Depok, Indonesia","institution_ids":["https://openalex.org/I29617571"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5069397372"],"corresponding_institution_ids":["https://openalex.org/I29617571"],"apc_list":null,"apc_paid":null,"fwci":4.5975,"has_fulltext":true,"cited_by_count":28,"citation_normalized_percentile":{"value":0.95971972,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":97,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"39","last_page":"44"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10821","display_name":"Cardiovascular Function and Risk Factors","score":0.9955000281333923,"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/T10821","display_name":"Cardiovascular Function and Risk Factors","score":0.9955000281333923,"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/T10372","display_name":"Cardiac Imaging and Diagnostics","score":0.9937000274658203,"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/T10745","display_name":"Heart Rate Variability and Autonomic Control","score":0.9898999929428101,"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/ejection-fraction","display_name":"Ejection fraction","score":0.5958251357078552},{"id":"https://openalex.org/keywords/transformer","display_name":"Transformer","score":0.4986264705657959},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4185114800930023},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.40673333406448364},{"id":"https://openalex.org/keywords/cardiology","display_name":"Cardiology","score":0.23667678236961365},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.17890852689743042},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.16454559564590454},{"id":"https://openalex.org/keywords/heart-failure","display_name":"Heart failure","score":0.09565004706382751},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.0928506851196289},{"id":"https://openalex.org/keywords/voltage","display_name":"Voltage","score":0.07606339454650879}],"concepts":[{"id":"https://openalex.org/C78085059","wikidata":"https://www.wikidata.org/wiki/Q641303","display_name":"Ejection fraction","level":3,"score":0.5958251357078552},{"id":"https://openalex.org/C66322947","wikidata":"https://www.wikidata.org/wiki/Q11658","display_name":"Transformer","level":3,"score":0.4986264705657959},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4185114800930023},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.40673333406448364},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.23667678236961365},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.17890852689743042},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.16454559564590454},{"id":"https://openalex.org/C2778198053","wikidata":"https://www.wikidata.org/wiki/Q181754","display_name":"Heart failure","level":2,"score":0.09565004706382751},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.0928506851196289},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.07606339454650879}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/iwbis56557.2022.9924664","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iwbis56557.2022.9924664","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2022 7th International Workshop on Big Data and Information Security (IWBIS)","raw_type":"proceedings-article"},{"id":"pmh:oai:arXiv.org:2304.00177","is_oa":true,"landing_page_url":"http://arxiv.org/abs/2304.00177","pdf_url":"https://arxiv.org/pdf/2304.00177","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2304.00177","is_oa":true,"landing_page_url":"http://arxiv.org/abs/2304.00177","pdf_url":"https://arxiv.org/pdf/2304.00177","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/12","display_name":"Responsible consumption and production","score":0.5199999809265137}],"awards":[],"funders":[{"id":"https://openalex.org/F4320323819","display_name":"Universitas Indonesia","ror":"https://ror.org/0116zj450"}],"has_content":{"pdf":true,"grobid_xml":false},"content_urls":{"pdf":"https://content.openalex.org/works/W4308083594.pdf"},"referenced_works_count":27,"referenced_works":["https://openalex.org/W2036639507","https://openalex.org/W2108598243","https://openalex.org/W2109289860","https://openalex.org/W2124624517","https://openalex.org/W2183341477","https://openalex.org/W2194775991","https://openalex.org/W2268919114","https://openalex.org/W2899663614","https://openalex.org/W2908510526","https://openalex.org/W2936316583","https://openalex.org/W2990987289","https://openalex.org/W3002705197","https://openalex.org/W3013692475","https://openalex.org/W3025793767","https://openalex.org/W3094502228","https://openalex.org/W3138516171","https://openalex.org/W3156811085","https://openalex.org/W3175515048","https://openalex.org/W3204334240","https://openalex.org/W3207662977","https://openalex.org/W4312560592","https://openalex.org/W4385245566","https://openalex.org/W6755977528","https://openalex.org/W6784333009","https://openalex.org/W6794906783","https://openalex.org/W6797533734","https://openalex.org/W6797737728"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W2011390101","https://openalex.org/W4385397996","https://openalex.org/W3110630109","https://openalex.org/W3090392807","https://openalex.org/W3187572025","https://openalex.org/W2605975631","https://openalex.org/W3155674270"],"abstract_inverted_index":{"The":[0,63,119],"left":[1,74],"ventricular":[2],"of":[3,8,13,33],"ejection":[4,34,58,68],"fraction":[5,35,59,69],"is":[6,17,122],"one":[7],"the":[9,31,57,71,112],"most":[10],"important":[11],"metric":[12],"cardiac":[14],"function.":[15],"It":[16],"used":[18],"by":[19],"cardiologist":[20],"to":[21,55,111],"identify":[22],"patients":[23],"who":[24],"are":[25,108],"eligible":[26],"for":[27,73,97],"life-prolonging":[28],"therapies.":[29],"However,":[30],"assessment":[32],"suffers":[36],"from":[37,60],"inter-observer":[38],"variability.":[39],"To":[40],"overcome":[41],"this":[42],"challenge,":[43],"we":[44],"propose":[45],"a":[46],"deep":[47],"learning":[48],"approach,":[49],"based":[50],"on":[51,89,124],"hierarchical":[52],"vision":[53],"Transformers,":[54],"estimate":[56,67],"echocardiogram":[61],"videos.":[62],"proposed":[64],"method":[65,88],"can":[66],"without":[70],"need":[72],"ventrice":[75],"segmentation":[76],"first,":[77],"make":[78],"it":[79],"more":[80],"efficient":[81],"than":[82],"other":[83],"methods.":[84],"We":[85],"evaluated":[86],"our":[87],"EchoNet-Dynamic":[90],"dataset":[91],"resulting":[92],"5.59,":[93],"7.59":[94],"and":[95,100],"0.59":[96],"MAE,":[98],"RMSE":[99],"R":[101],"<sup":[102],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[103],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">2</sup>":[104],"respectivelly.":[105],"This":[106],"results":[107],"better":[109],"compared":[110],"state-of-the-art":[113],"method,":[114],"Ultrasound":[115],"Video":[116],"Transformer":[117],"(UVT).":[118],"source":[120],"code":[121],"available":[123],"https://github.com/lhfazry/UltraSwin.":[125]},"counts_by_year":[{"year":2025,"cited_by_count":10},{"year":2024,"cited_by_count":14},{"year":2023,"cited_by_count":4}],"updated_date":"2026-03-20T23:20:44.827607","created_date":"2022-11-08T00:00:00"}
