{"id":"https://openalex.org/W2056714710","doi":"https://doi.org/10.1067/mnc.2002.122675","title":"Variability of serial same-day left ventricular ejection fraction using quantitative gated SPECT","display_name":"Variability of serial same-day left ventricular ejection fraction using quantitative gated SPECT","publication_year":2002,"publication_date":"2002-07-01","ids":{"openalex":"https://openalex.org/W2056714710","doi":"https://doi.org/10.1067/mnc.2002.122675","mag":"2056714710","pmid":"https://pubmed.ncbi.nlm.nih.gov/12161712"},"language":"en","primary_location":{"id":"doi:10.1067/mnc.2002.122675","doi":"https://doi.org/10.1067/mnc.2002.122675","is_oa":false,"landing_page_url":"https://doi.org/10.1067/mnc.2002.122675","pdf_url":null,"source":{"id":"https://openalex.org/S40505786","display_name":"Journal of Nuclear Cardiology","issn_l":"1071-3581","issn":["1071-3581","1532-6551"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1"],"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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Nuclear Cardiology","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"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/A5103190922","display_name":"Enrique Vallejo","orcid":"https://orcid.org/0000-0001-8396-7708","observed_orcids":["https://orcid.org/0000-0001-8396-7708"]},"institutions":[{"id":"https://openalex.org/I4210157394","display_name":"Instituto Nacional de Cardiolog\u00eda","ror":"https://ror.org/046e90j34","country_code":"MX","type":"facility","lineage":["https://openalex.org/I4210157394"]}],"countries":["MX"],"is_corresponding":true,"raw_author_name":"Enrique Vallejo","raw_affiliation_strings":["Department of Nuclear Cardiology at Instituto Nacional de Cardiolog\u00eda Ignacio Ch\u00e1vez, Mexico City, Mexico. epvv2@hotmail.com","Nuclear Cardiology Department, Instituto Nacional de Cardiolo\u01f5a \u201cIgnacio Ch\u00e1vez\u201d, M\u00e9xico DF, Mexico"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Nuclear Cardiology at Instituto Nacional de Cardiolog\u00eda Ignacio Ch\u00e1vez, Mexico City, Mexico. epvv2@hotmail.com","institution_ids":["https://openalex.org/I4210157394"]},{"raw_affiliation_string":"Nuclear Cardiology Department, Instituto Nacional de Cardiolo\u01f5a \u201cIgnacio Ch\u00e1vez\u201d, M\u00e9xico DF, Mexico","institution_ids":["https://openalex.org/I4210157394"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5072150925","display_name":"H. Chaya","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210157394","display_name":"Instituto Nacional de Cardiolog\u00eda","ror":"https://ror.org/046e90j34","country_code":"MX","type":"facility","lineage":["https://openalex.org/I4210157394"]}],"countries":["MX"],"is_corresponding":false,"raw_author_name":"Hugo Chaya","raw_affiliation_strings":["Nuclear Cardiology Department, Instituto Nacional de Cardiolo\u01f5a \u201cIgnacio Ch\u00e1vez\u201d, Juan Badiano No 1, Col Seccio\u2019n XVI, Tlalpan, 10400, M\u00e9xico DF, Mexico","Nuclear Cardiology Department, Instituto Nacional de Cardiolo\u01f5a \u201cIgnacio Ch\u00e1vez\u201d, M\u00e9xico DF, Mexico"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Nuclear Cardiology Department, Instituto Nacional de Cardiolo\u01f5a \u201cIgnacio Ch\u00e1vez\u201d, Juan Badiano No 1, Col Seccio\u2019n XVI, Tlalpan, 10400, M\u00e9xico DF, Mexico","institution_ids":["https://openalex.org/I4210157394"]},{"raw_affiliation_string":"Nuclear Cardiology Department, Instituto Nacional de Cardiolo\u01f5a \u201cIgnacio Ch\u00e1vez\u201d, M\u00e9xico DF, Mexico","institution_ids":["https://openalex.org/I4210157394"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007533597","display_name":"G. Plancarte","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210157394","display_name":"Instituto Nacional de Cardiolog\u00eda","ror":"https://ror.org/046e90j34","country_code":"MX","type":"facility","lineage":["https://openalex.org/I4210157394"]}],"countries":["MX"],"is_corresponding":false,"raw_author_name":"Gerardo Plancarte","raw_affiliation_strings":["Nuclear Cardiology Department, Instituto Nacional de Cardiolo\u01f5a \u201cIgnacio Ch\u00e1vez\u201d, Juan Badiano No 1, Col Seccio\u2019n XVI, Tlalpan, 10400, M\u00e9xico DF, Mexico","Nuclear Cardiology Department, Instituto Nacional de Cardiolo\u01f5a \u201cIgnacio Ch\u00e1vez\u201d, M\u00e9xico DF, Mexico"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Nuclear Cardiology Department, Instituto Nacional de Cardiolo\u01f5a \u201cIgnacio Ch\u00e1vez\u201d, Juan Badiano No 1, Col Seccio\u2019n XVI, Tlalpan, 10400, M\u00e9xico DF, Mexico","institution_ids":["https://openalex.org/I4210157394"]},{"raw_affiliation_string":"Nuclear Cardiology Department, Instituto Nacional de Cardiolo\u01f5a \u201cIgnacio Ch\u00e1vez\u201d, M\u00e9xico DF, Mexico","institution_ids":["https://openalex.org/I4210157394"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112183200","display_name":"Diana V\u00edctoria","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210157394","display_name":"Instituto Nacional de Cardiolog\u00eda","ror":"https://ror.org/046e90j34","country_code":"MX","type":"facility","lineage":["https://openalex.org/I4210157394"]}],"countries":["MX"],"is_corresponding":false,"raw_author_name":"Diana Victoria","raw_affiliation_strings":["Nuclear Cardiology Department, Instituto Nacional de Cardiolo\u01f5a \u201cIgnacio Ch\u00e1vez\u201d, Juan Badiano No 1, Col Seccio\u2019n XVI, Tlalpan, 10400, M\u00e9xico DF, Mexico","Nuclear Cardiology Department, Instituto Nacional de Cardiolo\u01f5a \u201cIgnacio Ch\u00e1vez\u201d, M\u00e9xico DF, Mexico"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Nuclear Cardiology Department, Instituto Nacional de Cardiolo\u01f5a \u201cIgnacio Ch\u00e1vez\u201d, Juan Badiano No 1, Col Seccio\u2019n XVI, Tlalpan, 10400, M\u00e9xico DF, Mexico","institution_ids":["https://openalex.org/I4210157394"]},{"raw_affiliation_string":"Nuclear Cardiology Department, Instituto Nacional de Cardiolo\u01f5a \u201cIgnacio Ch\u00e1vez\u201d, M\u00e9xico DF, Mexico","institution_ids":["https://openalex.org/I4210157394"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5032770912","display_name":"D Bialostozky","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210157394","display_name":"Instituto Nacional de Cardiolog\u00eda","ror":"https://ror.org/046e90j34","country_code":"MX","type":"facility","lineage":["https://openalex.org/I4210157394"]}],"countries":["MX"],"is_corresponding":false,"raw_author_name":"David Bialostozky","raw_affiliation_strings":["Nuclear Cardiology Department, Instituto Nacional de Cardiolo\u01f5a \u201cIgnacio Ch\u00e1vez\u201d, Juan Badiano No 1, Col Seccio\u2019n XVI, Tlalpan, 10400, M\u00e9xico DF, Mexico","Nuclear Cardiology Department, Instituto Nacional de Cardiolo\u01f5a \u201cIgnacio Ch\u00e1vez\u201d, M\u00e9xico DF, Mexico"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Nuclear Cardiology Department, Instituto Nacional de Cardiolo\u01f5a \u201cIgnacio Ch\u00e1vez\u201d, Juan Badiano No 1, Col Seccio\u2019n XVI, Tlalpan, 10400, M\u00e9xico DF, Mexico","institution_ids":["https://openalex.org/I4210157394"]},{"raw_affiliation_string":"Nuclear Cardiology Department, Instituto Nacional de Cardiolo\u01f5a \u201cIgnacio Ch\u00e1vez\u201d, M\u00e9xico DF, Mexico","institution_ids":["https://openalex.org/I4210157394"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5103190922"],"corresponding_institution_ids":["https://openalex.org/I4210157394"],"apc_list":{"value":4190,"currency":"USD","value_usd":4190},"apc_paid":null,"fwci":2.2023,"has_fulltext":false,"cited_by_count":19,"citation_normalized_percentile":{"value":0.8652109,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":"9","issue":"4","first_page":"377","last_page":"384"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10372","display_name":"Cardiac Imaging and Diagnostics","score":0.9951000213623047,"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":0.9951000213623047,"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/T10821","display_name":"Cardiovascular Function and Risk Factors","score":0.004000000189989805,"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/T10522","display_name":"Medical Imaging Techniques and Applications","score":0.0003000000142492354,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/left-ventricular-ejection-fraction","display_name":"left ventricular ejection fraction","score":0.9580000042915344},{"id":"https://openalex.org/keywords/quantitative-gated-spect","display_name":"quantitative gated SPECT","score":0.9279999732971191},{"id":"https://openalex.org/keywords/99mtc-sestamibi","display_name":"99mTc-sestamibi","score":0.9760000109672546},{"id":"https://openalex.org/keywords/coronary-artery-disease","display_name":"coronary artery disease","score":0.7480000257492065},{"id":"https://openalex.org/keywords/low-dose-imaging","display_name":"low-dose imaging","score":0.7929999828338623},{"id":"https://openalex.org/keywords/risk-stratification","display_name":"risk stratification","score":0.7630000114440918}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.8291388750076294},{"id":"https://openalex.org/C78085059","wikidata":"https://www.wikidata.org/wiki/Q641303","display_name":"Ejection fraction","level":3,"score":0.8196291923522949},{"id":"https://openalex.org/C2989005","wikidata":"https://www.wikidata.org/wiki/Q214963","display_name":"Nuclear medicine","level":1,"score":0.6275812983512878},{"id":"https://openalex.org/C2778213512","wikidata":"https://www.wikidata.org/wiki/Q844935","display_name":"Coronary artery disease","level":2,"score":0.5765326619148254},{"id":"https://openalex.org/C2780441642","wikidata":"https://www.wikidata.org/wiki/Q849737","display_name":"Single-photon emission computed tomography","level":2,"score":0.5125586986541748},{"id":"https://openalex.org/C2776902491","wikidata":"https://www.wikidata.org/wiki/Q5527046","display_name":"Gated SPECT","level":4,"score":0.46250125765800476},{"id":"https://openalex.org/C2908647359","wikidata":"https://www.wikidata.org/wiki/Q2625603","display_name":"Population","level":2,"score":0.4319267272949219},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.38644999265670776},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.3605407178401947},{"id":"https://openalex.org/C2778198053","wikidata":"https://www.wikidata.org/wiki/Q181754","display_name":"Heart failure","level":2,"score":0.1190263032913208},{"id":"https://openalex.org/C99454951","wikidata":"https://www.wikidata.org/wiki/Q932068","display_name":"Environmental health","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000328","descriptor_name":"Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D003324","descriptor_name":"Coronary Artery Disease","qualifier_ui":"Q000000981","qualifier_name":"diagnostic imaging","is_major_topic":true},{"descriptor_ui":"D003324","descriptor_name":"Coronary Artery Disease","qualifier_ui":"Q000503","qualifier_name":"physiopathology","is_major_topic":true},{"descriptor_ui":"D005260","descriptor_name":"Female","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":"D008875","descriptor_name":"Middle Aged","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012016","descriptor_name":"Reference Values","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012146","descriptor_name":"Rest","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D013318","descriptor_name":"Stroke Volume","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":true},{"descriptor_ui":"D013997","descriptor_name":"Time Factors","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015203","descriptor_name":"Reproducibility of Results","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":false},{"descriptor_ui":"D015637","descriptor_name":"Gated Blood-Pool Imaging","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D015899","descriptor_name":"Tomography, Emission-Computed, Single-Photon","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D018487","descriptor_name":"Ventricular Dysfunction, Left","qualifier_ui":"Q000000981","qualifier_name":"diagnostic imaging","is_major_topic":true},{"descriptor_ui":"D018487","descriptor_name":"Ventricular Dysfunction, Left","qualifier_ui":"Q000503","qualifier_name":"physiopathology","is_major_topic":true}],"locations_count":2,"locations":[{"id":"doi:10.1067/mnc.2002.122675","doi":"https://doi.org/10.1067/mnc.2002.122675","is_oa":false,"landing_page_url":"https://doi.org/10.1067/mnc.2002.122675","pdf_url":null,"source":{"id":"https://openalex.org/S40505786","display_name":"Journal of Nuclear Cardiology","issn_l":"1071-3581","issn":["1071-3581","1532-6551"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1"],"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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Nuclear Cardiology","raw_type":"journal-article"},{"id":"pmid:12161712","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/12161712","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":"Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology","raw_type":"Clinical Trial"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/3","score":0.9537000060081482,"display_name":"Good health and well-being"}],"study_designs":[{"id":"https://openalex.org/study-designs/observational-study","display_name":"Observational Study"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W1816538486","https://openalex.org/W1940922686","https://openalex.org/W1977595064","https://openalex.org/W1979115546","https://openalex.org/W2025108876","https://openalex.org/W2025926352","https://openalex.org/W2031155857","https://openalex.org/W2040533026","https://openalex.org/W2043144081","https://openalex.org/W2056793065","https://openalex.org/W2087906814","https://openalex.org/W2107501191","https://openalex.org/W2134801117","https://openalex.org/W2153596625","https://openalex.org/W2186018223","https://openalex.org/W2261576889","https://openalex.org/W2334748255"],"related_works":["https://openalex.org/W1521983409","https://openalex.org/W2072656350","https://openalex.org/W2087906814","https://openalex.org/W1583864100","https://openalex.org/W1964816646","https://openalex.org/W2012542770","https://openalex.org/W2186018223","https://openalex.org/W2016304539","https://openalex.org/W2050245193","https://openalex.org/W2041733353"],"abstract_inverted_index":null,"counts_by_year":[{"year":2012,"cited_by_count":1}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2016-06-24T00:00:00"}