{"id":"https://openalex.org/A5076184293","orcid":null,"observed_orcids":[],"display_name":"U. M. Sivananthan","raw_author_names":["U M Sivananthan","U SIVANANTHAN","U. M. SIVANANTHAN","U. M. Sivananthan","U. Mohan Sivananthan","U.M. Sivananthan","Uduvil M Sivananthan"],"full_name":"Uduvil M Sivananthan","works_count":34,"cited_by_count":419,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":12,"i10_index":12},"ids":{"openalex":"https://openalex.org/A5076184293","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I1295121038","ror":"https://ror.org/04hrjej96","display_name":"Leeds General Infirmary","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I1295121038","https://openalex.org/I2799390153"]},"years":[2017,2012,2005,2003,2001,2000,1999,1998,1997]},{"institution":{"id":"https://openalex.org/I130828816","ror":"https://ror.org/024mrxd33","display_name":"University of Leeds","country_code":"GB","type":"education","lineage":["https://openalex.org/I130828816"]},"years":[1998,1993]},{"institution":{"id":"https://openalex.org/I2799390153","ror":"https://ror.org/00v4dac24","display_name":"Leeds Teaching Hospitals NHS Trust","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I2799390153"]},"years":[1995]},{"institution":{"id":"https://openalex.org/I4210158854","ror":"https://ror.org/04va7bx33","display_name":"Killingbeck","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I4210158854"]},"years":[2002,1997,1996,1995,1994,1993,1992,1991]}],"last_known_institutions":[{"id":"https://openalex.org/I1295121038","ror":"https://ror.org/04hrjej96","display_name":"Leeds General Infirmary","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I1295121038","https://openalex.org/I2799390153"]}],"topics":[{"id":"https://openalex.org/T10372","display_name":"Cardiac Imaging and Diagnostics","count":26,"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/T10522","display_name":"Medical Imaging Techniques and Applications","count":13,"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/T10378","display_name":"Advanced MRI Techniques and Applications","count":9,"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","count":8,"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/T10926","display_name":"Peripheral Artery Disease Management","count":6,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"topic_share":[{"id":"https://openalex.org/T14120","display_name":"Thallium and Germanium Studies","value":0.0001688,"subfield":{"id":"https://openalex.org/subfields/2310","display_name":"Pollution"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10372","display_name":"Cardiac Imaging and Diagnostics","value":4.56e-05,"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/T10926","display_name":"Peripheral Artery Disease Management","value":2.83e-05,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"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","value":2.76e-05,"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/T12067","display_name":"Renal and Vascular Pathologies","value":2.72e-05,"subfield":{"id":"https://openalex.org/subfields/2727","display_name":"Nephrology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.9799902439117432},{"id":"2989005","wikidata":"https://www.wikidata.org/wiki/Q214963","display_name":"Nuclear medicine","score":0.682217001914978},{"id":"164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","score":0.6342906951904297},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.6036943197250366},{"id":"126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","score":0.4888607859611511}],"counts_by_year":[{"year":1991,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1992,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1993,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1994,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":1995,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1998,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1999,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2002,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2011,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":1,"oa_works_count":1,"cited_by_count":17},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":14},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":14},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":14},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":17},{"year":2017,"works_count":2,"oa_works_count":1,"cited_by_count":17},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":5},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":3}],"display_name_alternatives":["U M Sivananthan","U SIVANANTHAN","U. M. SIVANANTHAN","U. M. Sivananthan","U. Mohan Sivananthan","U.M. Sivananthan","Uduvil M Sivananthan"],"block_key":"u sivananthan","works_api_url":"https://api.openalex.org/works?filter=author.id:A5076184293","updated_date":"2026-11-08T12:57:04","created_date":"2016-06-24T00:00:00"}