Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (873,690 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 1
Markus Schwaiger
medicine
molecular imaging
nuclear medicine
radiology
Metrics
H-Index
i10 Index
Citation
168
880
107,054
* Rankings
Ranking Based On Selection: 3
Igor Yakushev
neuroimaging
multimodal imaging
neurodegenerative disorders
biomarkers
brain connectivity
Metrics
H-Index
i10 Index
Citation
38
88
4,357
Calogero D Alessandria
Onco-imaging
Radiotherapy
Molecular Biology
radiotracer development
PET/CT
Metrics
H-Index
i10 Index
Citation
29
59
3,171
Rankings
Ranking Based On Selection: 1
Markus Schwaiger
Metrics
H-Index
i10 Index
Citation Counts
168
880
107,054
medicine
molecular imaging
nuclear medicine
radiology
Rankings
Ranking Based On Selection: 2
Wolfgang Weber
Metrics
H-Index
i10 Index
Citation Counts
107
244
44,399
Rankings
Ranking Based On Selection: 3
Igor Yakushev
Metrics
H-Index
i10 Index
Citation Counts
38
88
4,357
neuroimaging
multimodal imaging
neurodegenerative disorders
biomarkers
brain connectivity
Rankings
Ranking Based On Selection: 4
Kuangyu Shi
Metrics
H-Index
i10 Index
Citation Counts
32
87
3,918
Rankings
Ranking Based On Selection: 5
Calogero D Alessandria
Metrics
H-Index
i10 Index
Citation Counts
29
59
3,171
Onco-imaging
Radiotherapy
Molecular Biology
radiotracer development
PET/CT
Rankings
Ranking Based On Selection: 6
Mona Mustafa
Metrics
H-Index
i10 Index
Citation Counts
17
24
1,599
Rankings
Ranking Based On Selection: 7
Theo Lorenzini
Metrics
H-Index
i10 Index
Citation Counts
5
4
182
Nuclear Medicine
Molecular Imaging
Tumor Immunology