{"id":"https://openalex.org/A5111798381","orcid":null,"observed_orcids":[],"display_name":"Masatoshi Imaizumi","raw_author_names":["M Imaizumi","MASATOSHI IMAIZUMI","Masatoshi IMAIZUMI","Masatoshi Imaizumi"],"full_name":"MASATOSHI IMAIZUMI","works_count":30,"cited_by_count":461,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":10,"i10_index":10},"ids":{"openalex":"https://openalex.org/A5111798381","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I1287163989","ror":"https://ror.org/04g3dn724","display_name":"Massachusetts Eye and Ear Infirmary","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1287163989"]},"years":[1971]},{"institution":{"id":"https://openalex.org/I136199984","ror":"https://ror.org/03vek6s52","display_name":"Harvard University","country_code":"US","type":"education","lineage":["https://openalex.org/I136199984"]},"years":[1971]},{"institution":{"id":"https://openalex.org/I4210090372","ror":"https://ror.org/00b6s9f18","display_name":"Osaka National Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210090372","https://openalex.org/I4210137409"]},"years":[2000,1997,1994,1993,1991,1990,1989]},{"institution":{"id":"https://openalex.org/I4210124582","ror":"https://ror.org/02wcsw791","display_name":"Osaka Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210124582","https://openalex.org/I4210132540"]},"years":[1989]},{"institution":{"id":"https://openalex.org/I98285908","ror":"https://ror.org/035t8zc32","display_name":"The University of Osaka","country_code":"JP","type":"education","lineage":["https://openalex.org/I98285908"]},"years":[1981,1974,1969]}],"last_known_institutions":[{"id":"https://openalex.org/I4210090372","ror":"https://ror.org/00b6s9f18","display_name":"Osaka National Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210090372","https://openalex.org/I4210137409"]}],"topics":[{"id":"https://openalex.org/T10227","display_name":"Acute Ischemic Stroke Management","count":7,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Clinical Neurology"},"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":6,"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/T10746","display_name":"Platelet Disorders and Treatments","count":6,"subfield":{"id":"https://openalex.org/subfields/2720","display_name":"Hematology"},"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/T10816","display_name":"Cerebrovascular and Carotid Artery Diseases","count":6,"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/T11064","display_name":"Antiplatelet Therapy and Cardiovascular Diseases","count":3,"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"}}],"topic_share":[{"id":"https://openalex.org/T12747","display_name":"Moyamoya disease diagnosis and treatment","value":9.12e-05,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Clinical Neurology"},"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/T13648","display_name":"Cerebrovascular and genetic disorders","value":6.61e-05,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Clinical Neurology"},"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/T13657","display_name":"Aortic Thrombus and Embolism","value":3.79e-05,"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/T10816","display_name":"Cerebrovascular and Carotid Artery Diseases","value":2.12e-05,"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/T11064","display_name":"Antiplatelet Therapy and Cardiovascular Diseases","value":2.11e-05,"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"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.9809681177139282},{"id":"164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","score":0.7232800722122192},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.7167166471481323},{"id":"126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","score":0.4953133165836334},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.36952391266822815}],"counts_by_year":[{"year":1969,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1971,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1974,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1980,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1981,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1982,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1989,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1990,"works_count":3,"oa_works_count":2,"cited_by_count":0},{"year":1991,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1992,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1993,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":1994,"works_count":3,"oa_works_count":2,"cited_by_count":0},{"year":1997,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":11},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":16},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":9},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":5},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"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":4},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":1}],"display_name_alternatives":["M Imaizumi","MASATOSHI IMAIZUMI","Masatoshi IMAIZUMI","Masatoshi Imaizumi"],"block_key":"m imaizumi","works_api_url":"https://api.openalex.org/works?filter=author.id:A5111798381","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5111798381","updated_date":"2026-11-10T14:30:39","created_date":"2016-06-24T00:00:00"}
