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" (873,864 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
Sanjiv S Gambhir
molecular imaging
positron emission tomography
nuclear medicine
early cancer detection
Metrics
H-Index
i10 Index
Citation
164
743
114,415
* Rankings
Ranking Based On Selection :3
Joseph C Wu
cardiovascular diseases
stem cells
imaging
genomics
Metrics
H-Index
i10 Index
Citation
138
587
65,508
* Rankings
Ranking Based On Selection :6
Garry Gold
Medical Imaging
Osteoarthritis
Musculoskeletal disease
MRI
Metrics
H-Index
i10 Index
Citation
84
253
25,537
* Rankings
Ranking Based On Selection :10
Jianghong Rao
Molecular imaging
chemistry
chemical biology
bionanotechnology
Metrics
H-Index
i10 Index
Citation
71
129
18,900
* Rankings
Ranking Based On Selection :11
Heike E Daldrup Link
Pediatric Radiology
Cancer Imaging
Contrast Agents
Molecular Imaging
Metrics
H-Index
i10 Index
Citation
65
185
16,473
* Rankings
Ranking Based On Selection :12
Kim Butts Pauly
Transcranial Ultrasound
TUS
MRI
FUS
HIFU
Metrics
H-Index
i10 Index
Citation
65
185
16,243
* Rankings
Ranking Based On Selection :13
Lane F Donnelly
improvement
quality and safety
cost
pediatric radiology
Metrics
H-Index
i10 Index
Citation
63
198
14,090
* Rankings
Ranking Based On Selection :18
Christopher F Beaulieu
Medical image analysis
computer aided diagnosis
medical informatics
Metrics
H-Index
i10 Index
Citation
59
148
14,006
Ronald Watkins
Medical Imaging
Image Guided Therapeutics
Ultrasound
Nuclear Medicine
MRI Imaging
Metrics
H-Index
i10 Index
Citation
38
83
7,092
Daniel B Ennis
Magnetic resonance imaging
cardiac function
cardiovascular flow
cardiac microstructure
gradient waveform design
Metrics
H-Index
i10 Index
Citation
35
96
4,984
Joseph Y Cheng
image reconstruction
motion correction
compressed sensing
computational imaging
deep learning
Metrics
H-Index
i10 Index
Citation
32
60
4,467
Sandip Biswal
radiology
musculoskeletal imaging
pain diagnosis
positron emission tomography
pain management
Metrics
H-Index
i10 Index
Citation
32
62
3,069
Raag Airan
Neuroscience
Focused Ultrasound
Nanotechnology
Metrics
H-Index
i10 Index
Citation
28
38
6,002
Tanya Stoyanova|https://stoyanovalab.org/
Cancer biology
cancer therapies
cancer early detection
cancer imaging
Metrics
H-Index
i10 Index
Citation
27
45
3,761
Safwan S Halabi
Obstetric/Fetal and Pediatric Radiology
Clinical Informatics
Imaging Informatics
Artificial Intelligence
Machine Learning
Metrics
H-Index
i10 Index
Citation
26
35
8,852
Catherine A Hogan
Diagnostic microbiology and virology
metabolomics
Metrics
H-Index
i10 Index
Citation
26
41
4,180
Mirabela Rusu
multi-protocol
multi-scale data fusion
MRI
Histology
computational imaging
Metrics
H-Index
i10 Index
Citation
25
47
6,513
Leonid Chepelev
Medical 3D Printing
Artificial Intelligence
Advanced Visualization
Semantic Web Technologies
Bioinformatics
Metrics
H-Index
i10 Index
Citation
25
34
4,144
Hossein Nejadnik
Radiology
Molecular and Cellular Imaging
Tissue Engineering
Stem Cell
Orthopedic Surgery
Metrics
H-Index
i10 Index
Citation
22
33
3,706
Congyu Liao Å»–ȁªè£•
Magnetic resonance imaging
MR physics
Image reconstruction
Pulse sequence design
Metrics
H-Index
i10 Index
Citation
21
32
1,687
Ahmed El Kaffas
Quantitative Ultrasound
Tissue/Cell Mechanics
Ultrasound
Anti-Angiogenics
Ultrasound Microbubbles
Metrics
H-Index
i10 Index
Citation
21
34
2,832
Mehmet Ozgun Ozen
IVD
Assay development
Liquid biopsy
EVs
2D/3D cultures
Metrics
H-Index
i10 Index
Citation
18
23
1,396
Emily B Tsai
Radiology
Informatics
Cost-Effectiveness
Lung Cancer
Pulmonary Fibrosis
Metrics
H-Index
i10 Index
Citation
16
17
1,465
Adam Bush
Magnetic Resonance Imaging
Cardiovascular
Sickle Cell Anemia
Biomedical Engineering
Metrics
H-Index
i10 Index
Citation
16
19
800
Shashi Singh|Shashi B. Singh, SB Singh
Radiology
Artificial Intelligence
Cancers
Nuclear Medicine
Pediatric radiology
Metrics
H-Index
i10 Index
Citation
5
4
78
Sara Natasha Ghobadi
Neuroradiology
brain tumor
epilepsy
neurogenesis
addiction neurobiology
Metrics
H-Index
i10 Index
Citation
4
2
42
Aroosa Zamarud
Stroke
Neurointervention radiology
Neurology
Radiology
Metrics
H-Index
i10 Index
Citation
4
0
35
Rankings
Ranking Based On Selection: 1
Sanjiv S Gambhir
Metrics
H-Index
i10 Index
Citation Counts
164
743
114,415
molecular imaging
positron emission tomography
nuclear medicine
early cancer detection
Rankings
Ranking Based On Selection: 2
Gary Glover
Metrics
H-Index
i10 Index
Citation Counts
155
410
111,768
Rankings
Ranking Based On Selection: 3
Joseph C Wu
Metrics
H-Index
i10 Index
Citation Counts
138
587
65,508
cardiovascular diseases
stem cells
imaging
genomics
Rankings
Ranking Based On Selection: 4
Michael Federle
Metrics
H-Index
i10 Index
Citation Counts
101
247
27,155
Rankings
Ranking Based On Selection: 5
Zhen Cheng
Metrics
H-Index
i10 Index
Citation Counts
87
303
29,958
Rankings
Ranking Based On Selection: 6
Garry Gold
Metrics
H-Index
i10 Index
Citation Counts
84
253
25,537
Medical Imaging
Osteoarthritis
Musculoskeletal disease
MRI
Rankings
Ranking Based On Selection: 7
Norbert Pelc
Metrics
H-Index
i10 Index
Citation Counts
84
312
28,898
Rankings
Ranking Based On Selection: 8
Sandy Napel
Metrics
H-Index
i10 Index
Citation Counts
76
207
27,363
Rankings
Ranking Based On Selection: 9
Greg Zaharchuk
Metrics
H-Index
i10 Index
Citation Counts
72
216
27,246
Rankings
Ranking Based On Selection: 10
Jianghong Rao
Metrics
H-Index
i10 Index
Citation Counts
71
129
18,900
Molecular imaging
chemistry
chemical biology
bionanotechnology
Rankings
Ranking Based On Selection: 11
Heike E Daldrup Link
Metrics
H-Index
i10 Index
Citation Counts
65
185
16,473
Pediatric Radiology
Cancer Imaging
Contrast Agents
Molecular Imaging
Rankings
Ranking Based On Selection: 12
Kim Butts Pauly
Metrics
H-Index
i10 Index
Citation Counts
65
185
16,243
Rankings
Ranking Based On Selection: 13
Lane F Donnelly
Metrics
H-Index
i10 Index
Citation Counts
63
198
14,090
improvement
quality and safety
cost
pediatric radiology
Rankings
Ranking Based On Selection: 14
Daniel Y Sze
Metrics
H-Index
i10 Index
Citation Counts
62
170
13,929
Rankings
Ranking Based On Selection: 15
Dominik Fleischmann
Metrics
H-Index
i10 Index
Citation Counts
61
168
15,122
Rankings
Ranking Based On Selection: 16
Shreyas Vasanawala
Metrics
H-Index
i10 Index
Citation Counts
60
183
14,360
Rankings
Ranking Based On Selection: 17
Nancy Fischbein
Metrics
H-Index
i10 Index
Citation Counts
59
149
12,656
Rankings
Ranking Based On Selection: 18
Christopher F Beaulieu
Metrics
H-Index
i10 Index
Citation Counts
59
148
14,006
Medical image analysis
computer aided diagnosis
medical informatics
Rankings
Ranking Based On Selection: 19
Brian Hargreaves
Metrics
H-Index
i10 Index
Citation Counts
58
182
12,620
Rankings
Ranking Based On Selection: 20
David S Paik
Metrics
H-Index
i10 Index
Citation Counts
42
72
5,637
Rankings
Ranking Based On Selection: 21
Robert D Boutin
Metrics
H-Index
i10 Index
Citation Counts
41
87
6,462
Rankings
Ranking Based On Selection: 22
Veit Sandfort
Metrics
H-Index
i10 Index
Citation Counts
38
70
5,192
Rankings
Ranking Based On Selection: 23
Ronald Watkins
Metrics
H-Index
i10 Index
Citation Counts
38
83
7,092
Medical Imaging
Image Guided Therapeutics
Ultrasound
Nuclear Medicine
MRI Imaging
Rankings
Ranking Based On Selection: 24
Jennifer A Mcnab
Metrics
H-Index
i10 Index
Citation Counts
36
54
4,886
Rankings
Ranking Based On Selection: 25
Arne Vandenbroucke
Metrics
H-Index
i10 Index
Citation Counts
36
52
6,689
Rankings
Ranking Based On Selection: 26
Daniel B Ennis
Metrics
H-Index
i10 Index
Citation Counts
35
96
4,984
Magnetic resonance imaging
cardiac function
cardiovascular flow
cardiac microstructure
gradient waveform design
Rankings
Ranking Based On Selection: 27
Helen Nadel
Metrics
H-Index
i10 Index
Citation Counts
33
57
6,147
Rankings
Ranking Based On Selection: 28
Joseph Y Cheng
Metrics
H-Index
i10 Index
Citation Counts
32
60
4,467
image reconstruction
motion correction
compressed sensing
computational imaging
deep learning
Rankings
Ranking Based On Selection: 29
Sandip Biswal
Metrics
H-Index
i10 Index
Citation Counts
32
62
3,069
radiology
musculoskeletal imaging
pain diagnosis
positron emission tomography
pain management
Rankings
Ranking Based On Selection: 30
Raag Airan
Metrics
H-Index
i10 Index
Citation Counts
28
38
6,002
Neuroscience
Focused Ultrasound
Nanotechnology
Rankings
Ranking Based On Selection: 31
Hong Song
Metrics
H-Index
i10 Index
Citation Counts
28
40
2,645
Rankings
Ranking Based On Selection: 32
Tanya Stoyanova|https://stoyanovalab.org/
Metrics
H-Index
i10 Index
Citation Counts
27
45
3,761
Cancer biology
cancer therapies
cancer early detection
cancer imaging
Rankings
Ranking Based On Selection: 33
Safwan S Halabi
Metrics
H-Index
i10 Index
Citation Counts
26
35
8,852
Obstetric/Fetal and Pediatric Radiology
Clinical Informatics
Imaging Informatics
Artificial Intelligence
Machine Learning
Rankings
Ranking Based On Selection: 34
Catherine A Hogan
Metrics
H-Index
i10 Index
Citation Counts
26
41
4,180
Diagnostic microbiology and virology
metabolomics
Rankings
Ranking Based On Selection: 35
Marina Codari
Metrics
H-Index
i10 Index
Citation Counts
26
53
4,119
Rankings
Ranking Based On Selection: 36
Adam Wang
Metrics
H-Index
i10 Index
Citation Counts
25
61
2,379
Rankings
Ranking Based On Selection: 37
Mirabela Rusu
Metrics
H-Index
i10 Index
Citation Counts
25
47
6,513
multi-protocol
multi-scale data fusion
MRI
Histology
computational imaging
Rankings
Ranking Based On Selection: 38
Leonid Chepelev
Metrics
H-Index
i10 Index
Citation Counts
25
34
4,144
Medical 3D Printing
Artificial Intelligence
Advanced Visualization
Semantic Web Technologies
Bioinformatics
Rankings
Ranking Based On Selection: 39
Kira Foygel
Metrics
H-Index
i10 Index
Citation Counts
24
27
1,937
Rankings
Ranking Based On Selection: 40
Huaijun Morgan Wang
Metrics
H-Index
i10 Index
Citation Counts
24
36
1,923
Rankings
Ranking Based On Selection: 41
Hossein Nejadnik
Metrics
H-Index
i10 Index
Citation Counts
22
33
3,706
Radiology
Molecular and Cellular Imaging
Tissue Engineering
Stem Cell
Orthopedic Surgery
Rankings
Ranking Based On Selection: 42
Congyu Liao Å»–ȁªè£•
Metrics
H-Index
i10 Index
Citation Counts
21
32
1,687
Magnetic resonance imaging
MR physics
Image reconstruction
Pulse sequence design
Rankings
Ranking Based On Selection: 43
Ahmed El Kaffas
Metrics
H-Index
i10 Index
Citation Counts
21
34
2,832
Quantitative Ultrasound
Tissue/Cell Mechanics
Ultrasound
Anti-Angiogenics
Ultrasound Microbubbles
Rankings
Ranking Based On Selection: 44
Josquin Foiret
Metrics
H-Index
i10 Index
Citation Counts
21
33
1,363
Rankings
Ranking Based On Selection: 45
Arundhuti Ganguly
Metrics
H-Index
i10 Index
Citation Counts
20
27
1,514
Rankings
Ranking Based On Selection: 46
Mehmet Ozgun Ozen
Metrics
H-Index
i10 Index
Citation Counts
18
23
1,396
IVD
Assay development
Liquid biopsy
EVs
2D/3D cultures
Rankings
Ranking Based On Selection: 47
Lihong Bu
Metrics
H-Index
i10 Index
Citation Counts
18
28
2,137
Rankings
Ranking Based On Selection: 48
Haiwei Henry Guo
Metrics
H-Index
i10 Index
Citation Counts
18
23
1,784
Rankings
Ranking Based On Selection: 49
Emily B Tsai
Metrics
H-Index
i10 Index
Citation Counts
16
17
1,465
Radiology
Informatics
Cost-Effectiveness
Lung Cancer
Pulmonary Fibrosis
Rankings
Ranking Based On Selection: 50
Adam Bush
Metrics
H-Index
i10 Index
Citation Counts
16
19
800
Magnetic Resonance Imaging
Cardiovascular
Sickle Cell Anemia
Biomedical Engineering
Rankings
Ranking Based On Selection: 51
Mehran Jamali
Metrics
H-Index
i10 Index
Citation Counts
14
15
1,108
Rankings
Ranking Based On Selection: 52
Sherif Elsherif
Metrics
H-Index
i10 Index
Citation Counts
13
15
459
Rankings
Ranking Based On Selection: 53
Yingding (Bryan) Xu
Metrics
H-Index
i10 Index
Citation Counts
13
14
797
Rankings
Ranking Based On Selection: 54
Robert Reeves
Metrics
H-Index
i10 Index
Citation Counts
13
14
1,195
Rankings
Ranking Based On Selection: 55
Benjamin AH Smith Benjie
Metrics
H-Index
i10 Index
Citation Counts
12
12
1,838
Rankings
Ranking Based On Selection: 56
James Zhe Hui
Metrics
H-Index
i10 Index
Citation Counts
11
13
2,140
Rankings
Ranking Based On Selection: 57
Maryam Shahrzad,Md
Metrics
H-Index
i10 Index
Citation Counts
10
10
397
Rankings
Ranking Based On Selection: 58
Luyao Shen
Metrics
H-Index
i10 Index
Citation Counts
9
9
476
Rankings
Ranking Based On Selection: 59
Anna Seehofnerová
Metrics
H-Index
i10 Index
Citation Counts
6
6
229
Rankings
Ranking Based On Selection: 60
Surbhi Raichandani
Metrics
H-Index
i10 Index
Citation Counts
6
2
123
Rankings
Ranking Based On Selection: 61
Simon Lemieux
Metrics
H-Index
i10 Index
Citation Counts
5
5
82
Rankings
Ranking Based On Selection: 62
Shashi Singh|Shashi B. Singh, SB Singh
Metrics
H-Index
i10 Index
Citation Counts
5
4
78
Radiology
Artificial Intelligence
Cancers
Nuclear Medicine
Pediatric radiology
Rankings
Ranking Based On Selection: 63
Sara Natasha Ghobadi
Metrics
H-Index
i10 Index
Citation Counts
4
2
42
Neuroradiology
brain tumor
epilepsy
neurogenesis
addiction neurobiology
Rankings
Ranking Based On Selection: 64
Aroosa Zamarud
Metrics
H-Index
i10 Index
Citation Counts
4
0
35
Stroke
Neurointervention radiology
Neurology
Radiology