{"id":"https://openalex.org/W2124077908","doi":"https://doi.org/10.1109/42.963815","title":"Enhancement of contrast echocardiography by image variability analysis","display_name":"Enhancement of contrast echocardiography by image variability analysis","publication_year":2001,"publication_date":"2001-01-01","ids":{"openalex":"https://openalex.org/W2124077908","doi":"https://doi.org/10.1109/42.963815","mag":"2124077908","pmid":"https://pubmed.ncbi.nlm.nih.gov/11700738"},"language":"en","primary_location":{"id":"doi:10.1109/42.963815","doi":"https://doi.org/10.1109/42.963815","is_oa":false,"landing_page_url":"https://doi.org/10.1109/42.963815","pdf_url":null,"source":{"id":"https://openalex.org/S58069681","display_name":"IEEE Transactions on Medical Imaging","issn_l":"0278-0062","issn":["0278-0062","1558-254X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["ccf-b","cwts-core","dongbi-a","doyens","jufo-3","ki-jl-2","medline","norway-1","poland-140","russia-white-list-1","vabb-shw"],"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 Medical Imaging","raw_type":"journal-article"},"volume":null,"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/A5023996599","display_name":"Barry J. Fetics","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210105194","display_name":"Robin Medical (United States)","ror":"https://ror.org/01cf5z404","country_code":"US","type":"company","lineage":["https://openalex.org/I4210105194"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"B.J. Fetics","raw_affiliation_strings":["Robin Medical, Inc., Baltimore, MD 21203, USA","Robin Medical, Inc., Baltimore, MD, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Robin Medical, Inc., Baltimore, MD 21203, USA","institution_ids":["https://openalex.org/I4210105194"]},{"raw_affiliation_string":"Robin Medical, Inc., Baltimore, MD, USA","institution_ids":["https://openalex.org/I4210105194"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5078402672","display_name":"Eric Y.L. Wong","orcid":"https://orcid.org/0000-0003-2437-7446","observed_orcids":["https://orcid.org/0000-0003-2437-7446","https://orcid.org/0000-0002-4438-5817"]},"institutions":[{"id":"https://openalex.org/I145311948","display_name":"Johns Hopkins University","ror":"https://ror.org/00za53h95","country_code":"US","type":"education","lineage":["https://openalex.org/I145311948"]},{"id":"https://openalex.org/I2799853436","display_name":"Johns Hopkins Medicine","ror":"https://ror.org/037zgn354","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2799853436"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"E.Y. Wong","raw_affiliation_strings":["Department of Biomedical Engineering, Johns Hopkins Medical Institutions, Baltimore, MD, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biomedical Engineering, Johns Hopkins Medical Institutions, Baltimore, MD, USA","institution_ids":["https://openalex.org/I145311948","https://openalex.org/I2799853436"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040935852","display_name":"Taizo Murabayashi","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2799853436","display_name":"Johns Hopkins Medicine","ror":"https://ror.org/037zgn354","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2799853436"]},{"id":"https://openalex.org/I4210150714","display_name":"Johns Hopkins Hospital","ror":"https://ror.org/05cb1k848","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2799853436","https://openalex.org/I4210150714"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"T. Murabayashi","raw_affiliation_strings":["Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, USA","institution_ids":["https://openalex.org/I2799853436","https://openalex.org/I4210150714"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5028408259","display_name":"Gregg S Nelson","orcid":"https://orcid.org/0000-0002-8177-1098","observed_orcids":["https://orcid.org/0000-0002-8177-1098"]},"institutions":[{"id":"https://openalex.org/I2799853436","display_name":"Johns Hopkins Medicine","ror":"https://ror.org/037zgn354","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2799853436"]},{"id":"https://openalex.org/I4210150714","display_name":"Johns Hopkins Hospital","ror":"https://ror.org/05cb1k848","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2799853436","https://openalex.org/I4210150714"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"G.S. Nelson","raw_affiliation_strings":["Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, USA","institution_ids":["https://openalex.org/I2799853436","https://openalex.org/I4210150714"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004446141","display_name":"M.-M. Cohen","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2799853436","display_name":"Johns Hopkins Medicine","ror":"https://ror.org/037zgn354","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2799853436"]},{"id":"https://openalex.org/I4210150714","display_name":"Johns Hopkins Hospital","ror":"https://ror.org/05cb1k848","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2799853436","https://openalex.org/I4210150714"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"M.-M. Cohen","raw_affiliation_strings":["Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, USA","institution_ids":["https://openalex.org/I2799853436","https://openalex.org/I4210150714"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043455134","display_name":"Carlos Eduardo Rochitte","orcid":"https://orcid.org/0000-0003-4505-3344","observed_orcids":["https://orcid.org/0000-0003-4505-3344"]},"institutions":[{"id":"https://openalex.org/I2799853436","display_name":"Johns Hopkins Medicine","ror":"https://ror.org/037zgn354","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2799853436"]},{"id":"https://openalex.org/I4210150714","display_name":"Johns Hopkins Hospital","ror":"https://ror.org/05cb1k848","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2799853436","https://openalex.org/I4210150714"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"C.E. Rochitte","raw_affiliation_strings":["Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, USA","institution_ids":["https://openalex.org/I2799853436","https://openalex.org/I4210150714"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112339006","display_name":"James L. Weiss","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2799853436","display_name":"Johns Hopkins Medicine","ror":"https://ror.org/037zgn354","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2799853436"]},{"id":"https://openalex.org/I4210150714","display_name":"Johns Hopkins Hospital","ror":"https://ror.org/05cb1k848","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2799853436","https://openalex.org/I4210150714"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"J.L. Weiss","raw_affiliation_strings":["Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD, USA","institution_ids":["https://openalex.org/I2799853436","https://openalex.org/I4210150714"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5081031540","display_name":"David A. Kass","orcid":"https://orcid.org/0000-0003-1596-2299","observed_orcids":["https://orcid.org/0000-0003-1596-2299"]},"institutions":[{"id":"https://openalex.org/I145311948","display_name":"Johns Hopkins University","ror":"https://ror.org/00za53h95","country_code":"US","type":"education","lineage":["https://openalex.org/I145311948"]},{"id":"https://openalex.org/I2799853436","display_name":"Johns Hopkins Medicine","ror":"https://ror.org/037zgn354","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2799853436"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"D.A. Kass","raw_affiliation_strings":["Division of Cardiology, Department of Medicine and also the Department of Biomedical Engineering, Johns Hopkins Medical Institutions, Baltimore, MD, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Cardiology, Department of Medicine and also the Department of Biomedical Engineering, Johns Hopkins Medical Institutions, Baltimore, MD, USA","institution_ids":["https://openalex.org/I145311948","https://openalex.org/I2799853436"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5024574577","display_name":"Erez Nevo","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I145311948","display_name":"Johns Hopkins University","ror":"https://ror.org/00za53h95","country_code":"US","type":"education","lineage":["https://openalex.org/I145311948"]},{"id":"https://openalex.org/I4210105194","display_name":"Robin Medical (United States)","ror":"https://ror.org/01cf5z404","country_code":"US","type":"company","lineage":["https://openalex.org/I4210105194"]},{"id":"https://openalex.org/I4210150714","display_name":"Johns Hopkins Hospital","ror":"https://ror.org/05cb1k848","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2799853436","https://openalex.org/I4210150714"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"E. Nevo","raw_affiliation_strings":["Division of Cardiology, Department of Medicine, Johns Hopkins Hospital, Baltimore, MD, USA","Robin Medical, Inc., Baltimore, MD, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Cardiology, Department of Medicine, Johns Hopkins Hospital, Baltimore, MD, USA","institution_ids":["https://openalex.org/I145311948","https://openalex.org/I4210150714"]},{"raw_affiliation_string":"Robin Medical, Inc., Baltimore, MD, USA","institution_ids":["https://openalex.org/I4210105194"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":2645,"currency":"USD","value_usd":2645},"apc_paid":null,"fwci":2.0666,"has_fulltext":false,"cited_by_count":14,"citation_normalized_percentile":{"value":0.86148191,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"20","issue":"11","first_page":"1123","last_page":"1130"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10372","display_name":"Cardiac Imaging and Diagnostics","score":0.4458000063896179,"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"}},"topics":[{"id":"https://openalex.org/T10372","display_name":"Cardiac Imaging and Diagnostics","score":0.4458000063896179,"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/T10052","display_name":"Medical Image Segmentation Techniques","score":0.18459999561309814,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10821","display_name":"Cardiovascular Function and Risk Factors","score":0.15690000355243683,"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/contrast-echocardiography","display_name":"contrast echocardiography","score":0.9629999995231628},{"id":"https://openalex.org/keywords/endocardial-border-delineation","display_name":"endocardial border delineation","score":0.9670000076293945},{"id":"https://openalex.org/keywords/image-enhancement","display_name":"image enhancement","score":0.8320000171661377},{"id":"https://openalex.org/keywords/left-ventricular-end-diastolic-volume","display_name":"left ventricular end-diastolic volume","score":0.7570000290870667},{"id":"https://openalex.org/keywords/interobserver-variability","display_name":"interobserver variability","score":0.9470000267028809},{"id":"https://openalex.org/keywords/optison","display_name":"Optison","score":0.9869999885559082}],"concepts":[{"id":"https://openalex.org/C2776502983","wikidata":"https://www.wikidata.org/wiki/Q690182","display_name":"Contrast (vision)","level":2,"score":0.7136505246162415},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.6245614886283875},{"id":"https://openalex.org/C55020928","wikidata":"https://www.wikidata.org/wiki/Q3813865","display_name":"Image quality","level":3,"score":0.6177155375480652},{"id":"https://openalex.org/C2778921608","wikidata":"https://www.wikidata.org/wiki/Q2002035","display_name":"Ventricle","level":2,"score":0.6143074631690979},{"id":"https://openalex.org/C143753070","wikidata":"https://www.wikidata.org/wiki/Q162564","display_name":"Ultrasound","level":2,"score":0.5222797393798828},{"id":"https://openalex.org/C93038891","wikidata":"https://www.wikidata.org/wiki/Q1061524","display_name":"Intensity (physics)","level":2,"score":0.4436526894569397},{"id":"https://openalex.org/C126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","level":1,"score":0.44334739446640015},{"id":"https://openalex.org/C3018302497","wikidata":"https://www.wikidata.org/wiki/Q690182","display_name":"Image contrast","level":2,"score":0.44305604696273804},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.28909701108932495},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.25400447845458984},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.23205837607383728},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.19189181923866272},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","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}],"mesh":[{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004452","descriptor_name":"Echocardiography","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D004699","descriptor_name":"Endocardium","qualifier_ui":"Q000000981","qualifier_name":"diagnostic imaging","is_major_topic":false},{"descriptor_ui":"D005583","descriptor_name":"Fourier Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006352","descriptor_name":"Heart Ventricles","qualifier_ui":"Q000000981","qualifier_name":"diagnostic imaging","is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007089","descriptor_name":"Image Enhancement","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D008962","descriptor_name":"Models, Theoretical","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015588","descriptor_name":"Observer Variation","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true}],"locations_count":2,"locations":[{"id":"doi:10.1109/42.963815","doi":"https://doi.org/10.1109/42.963815","is_oa":false,"landing_page_url":"https://doi.org/10.1109/42.963815","pdf_url":null,"source":{"id":"https://openalex.org/S58069681","display_name":"IEEE Transactions on Medical Imaging","issn_l":"0278-0062","issn":["0278-0062","1558-254X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["ccf-b","cwts-core","dongbi-a","doyens","jufo-3","ki-jl-2","medline","norway-1","poland-140","russia-white-list-1","vabb-shw"],"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 Medical Imaging","raw_type":"journal-article"},{"id":"pmid:11700738","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/11700738","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,"listed_in":[],"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 medical imaging","raw_type":"Clinical Trial"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being","score":0.8048999905586243}],"study_designs":[],"awards":[{"id":"https://openalex.org/G4613040318","display_name":null,"funder_award_id":"1 R43 HL62028-01","funder_id":"https://openalex.org/F4320337338","funder_display_name":"National Heart, Lung, and Blood Institute"},{"id":"https://openalex.org/G608155241","display_name":"CONTRAST ECHO ENHANCEMENT BY IMAGE VARIABILITY ANALYSIS","funder_award_id":"1r43hl062028-01","funder_id":"https://openalex.org/F4320332161","funder_display_name":"National Institutes of Health"}],"funders":[{"id":"https://openalex.org/F4320332161","display_name":"National Institutes of Health","ror":"https://ror.org/01cwqze88"},{"id":"https://openalex.org/F4320337338","display_name":"National Heart, Lung, and Blood Institute","ror":"https://ror.org/012pb6c26"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":24,"referenced_works":["https://openalex.org/W88919045","https://openalex.org/W615161412","https://openalex.org/W1965315406","https://openalex.org/W1977086661","https://openalex.org/W1993872066","https://openalex.org/W2003126215","https://openalex.org/W2008177730","https://openalex.org/W2015697923","https://openalex.org/W2039506736","https://openalex.org/W2046975734","https://openalex.org/W2054120552","https://openalex.org/W2080655137","https://openalex.org/W2097583559","https://openalex.org/W2116194858","https://openalex.org/W2126385089","https://openalex.org/W2129463611","https://openalex.org/W2163424852","https://openalex.org/W2171857449","https://openalex.org/W2213500965","https://openalex.org/W2335455184","https://openalex.org/W2399910374","https://openalex.org/W2412820139","https://openalex.org/W2797295276","https://openalex.org/W3056198107"],"related_works":["https://openalex.org/W2077503350","https://openalex.org/W118938240","https://openalex.org/W2050901984","https://openalex.org/W2107398624","https://openalex.org/W4241932963","https://openalex.org/W2082854079","https://openalex.org/W172445241","https://openalex.org/W2022795675","https://openalex.org/W2041138676","https://openalex.org/W1996408752"],"abstract_inverted_index":{"BACKGROUND:":[0],"Although":[1],"there":[2],"have":[3],"been":[4],"recent":[5],"advances":[6],"in":[7,91,121],"echocardiography,":[8],"many":[9],"studies":[10],"remain":[11],"suboptimal":[12],"due":[13],"to":[14,73,87,134,147,176,189],"poor":[15],"image":[16,26,61,80,202,205],"quality":[17,203],"and":[18,60,75,96,137,179,199,204],"unclear":[19],"blood-myocardium":[20],"border.":[21],"We":[22],"developed":[23],"a":[24],"novel":[25],"processing":[27],"technique,":[28],"cardiac":[29],"variability":[30,161],"imaging":[31],"(CVI),":[32],"based":[33],"on":[34,70],"the":[35,48,53,77,105,115,150],"variance":[36],"of":[37,43,55,79,117,162],"pixel":[38],"intensity":[39],"values":[40],"during":[41],"passage":[42],"ultrasound":[44],"microbubble":[45],"contrast":[46,112,138,157,180],"into":[47],"left":[49],"ventricle":[50],"chamber,":[51],"with":[52],"aim":[54],"enhancing":[56],"endocardial":[57,196],"border":[58,197],"delineation":[59,198],"quality.":[62],"METHODS":[63],"AND":[64],"RESULTS:":[65],"CVI":[66,83,130,171,192],"analysis":[67,84],"was":[68,85,126,167],"performed":[69],"simulated":[71],"data":[72],"test":[74],"verify":[76],"mechanism":[78],"enhancement.":[81],"Then":[82],"applied":[86],"echocardiographic":[88,201],"images":[89,98,139,181],"obtained":[90],"two":[92],"different":[93],"clinical":[94],"studies,":[95],"still":[97],"were":[99],"interpreted":[100],"by":[101,129],"expert":[102],"reviewers.":[103],"In":[104,149],"first":[106],"study":[107,152],"(N":[108,153],"=":[109,154],"15),":[110],"using":[111,156,170],"agent":[113,158],"EchoGen,":[114],"number":[116],"observable":[118],"wall":[119],"segments":[120],"end-diastolic":[122,165],"images,":[123],"for":[124,144,186],"example,":[125],"significantly":[127,168],"increased":[128],"(4.93)":[131],"as":[132,174],"compared":[133,175],"precontrast":[135,177],"(3.28)":[136],"(3.36),":[140],"P":[141,183],"<":[142,184],"0.001":[143],"both":[145,187],"comparisons":[146,188],"CVI.":[148,190],"second":[151],"8),":[155],"Optison,":[159],"interobserver":[160],"manually":[163],"traced":[164],"volumes":[166],"decreased":[169],"(22.3":[172],"ml)":[173],"(63.4)":[178],"(49.0),":[182],"0.01":[185],"CONCLUSION:":[191],"can":[193],"substantially":[194],"enhance":[195],"improve":[200],"interpretation.":[206]},"counts_by_year":[{"year":2017,"cited_by_count":1},{"year":2015,"cited_by_count":2},{"year":2013,"cited_by_count":1}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2016-06-24T00:00:00"}
