{"id":"https://openalex.org/A5020570503","orcid":"https://orcid.org/0000-0002-4092-4481","observed_orcids":["https://orcid.org/0000-0002-4092-4481"],"display_name":"Takeshi Soyama","raw_author_names":["Soyama, Takeshi","Takeshi Soyama"],"full_name":"Takeshi Soyama","works_count":27,"cited_by_count":245,"summary_stats":{"2yr_mean_citedness":2.3333333333333335,"h_index":7,"i10_index":7},"ids":{"openalex":"https://openalex.org/A5020570503","orcid":"https://orcid.org/0000-0002-4092-4481","observed_orcids":["https://orcid.org/0000-0002-4092-4481"]},"affiliations":[{"institution":{"id":"https://openalex.org/I205349734","ror":"https://ror.org/02e16g702","display_name":"Hokkaido University","country_code":"JP","type":"education","lineage":["https://openalex.org/I205349734"]},"years":[2022,2015,2014]},{"institution":{"id":"https://openalex.org/I4210136522","ror":"https://ror.org/03kjjhe36","display_name":"Tokyo Women's Medical University","country_code":"JP","type":"education","lineage":["https://openalex.org/I4210136522"]},"years":[2015]},{"institution":{"id":"https://openalex.org/I4210141669","ror":"https://ror.org/0419drx70","display_name":"Hokkaido University Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210141669"]},"years":[2022,2021,2020,2019,2018,2017,2016,2015,2014]},{"institution":{"id":"https://openalex.org/I4210147254","ror":"https://ror.org/0498kr054","display_name":"Sapporo City General Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210147254"]},"years":[2015]},{"institution":{"id":"https://openalex.org/I4210161059","ror":"https://ror.org/05mhswc23","display_name":"Kushiro City General Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210161059"]},"years":[2025,2024,2023,2022]},{"institution":{"id":"https://openalex.org/I4405253407","ror":"https://ror.org/00msgqq02","display_name":"Steel Memorial Muroran Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4405253407"]},"years":[2015]},{"institution":{"id":"https://openalex.org/I4405254357","ror":"https://ror.org/01q9jet09","display_name":"Hakodate Municipal Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4405254357"]},"years":[2022]}],"last_known_institutions":[{"id":"https://openalex.org/I4210161059","ror":"https://ror.org/05mhswc23","display_name":"Kushiro City General Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210161059"]}],"topics":[{"id":"https://openalex.org/T10073","display_name":"Hepatocellular Carcinoma Treatment and Prognosis","count":6,"subfield":{"id":"https://openalex.org/subfields/2721","display_name":"Hepatology"},"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/T11625","display_name":"Abdominal vascular conditions and treatments","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"}},{"id":"https://openalex.org/T10358","display_name":"Advanced Radiotherapy Techniques","count":5,"subfield":{"id":"https://openalex.org/subfields/3108","display_name":"Radiation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11395","display_name":"Radiopharmaceutical Chemistry and Applications","count":4,"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/T11402","display_name":"Vascular Malformations Diagnosis and Treatment","count":4,"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"}}],"topic_share":[{"id":"https://openalex.org/T12453","display_name":"Infectious Aortic and Vascular Conditions","value":4.04e-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/T12199","display_name":"Vascular Anomalies and Treatments","value":4.03e-05,"subfield":{"id":"https://openalex.org/subfields/2716","display_name":"Genetics (clinical)"},"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/T11402","display_name":"Vascular Malformations Diagnosis and Treatment","value":3.3e-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/T11412","display_name":"Genetic and Kidney Cyst Diseases","value":2.83e-05,"subfield":{"id":"https://openalex.org/subfields/1311","display_name":"Genetics"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T11625","display_name":"Abdominal vascular conditions and treatments","value":2.59e-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"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.9860248565673828},{"id":"2776035437","wikidata":"https://www.wikidata.org/wiki/Q1144114","display_name":"Embolization","score":0.8678587675094604},{"id":"141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","score":0.7855014801025391},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.6259288191795349},{"id":"126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","score":0.5825350880622864}],"counts_by_year":[{"year":2013,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2014,"works_count":2,"oa_works_count":0,"cited_by_count":1},{"year":2015,"works_count":1,"oa_works_count":0,"cited_by_count":5},{"year":2016,"works_count":1,"oa_works_count":0,"cited_by_count":6},{"year":2017,"works_count":3,"oa_works_count":0,"cited_by_count":4},{"year":2018,"works_count":1,"oa_works_count":1,"cited_by_count":14},{"year":2019,"works_count":4,"oa_works_count":2,"cited_by_count":10},{"year":2020,"works_count":2,"oa_works_count":1,"cited_by_count":18},{"year":2021,"works_count":5,"oa_works_count":5,"cited_by_count":23},{"year":2022,"works_count":3,"oa_works_count":2,"cited_by_count":21},{"year":2023,"works_count":1,"oa_works_count":1,"cited_by_count":39},{"year":2024,"works_count":2,"oa_works_count":1,"cited_by_count":35},{"year":2025,"works_count":1,"oa_works_count":1,"cited_by_count":43},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":25}],"display_name_alternatives":["Soyama, Takeshi","Takeshi Soyama"],"block_key":"t soyama","works_api_url":"https://api.openalex.org/works?filter=author.id:A5020570503","awards_count":1,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5020570503","updated_date":"2026-11-12T13:17:38","created_date":"2016-06-24T00:00:00"}