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Howard Halpern

Concepts (406)

Concepts are derived automatically from a person's publications.
Concepts are listed by decreasing relevance which is based on many factors, including how many publications the person wrote about that topic, how long ago those publications were written, and how many publications other people have written on that same topic.


Name Number of Publications Most Recent Publication Publications by All Authors Concept Score Why?
Electron Spin Resonance Spectroscopy
90
2025
324
15.940
Why?
Oxygen
47
2025
769
10.020
Why?
Image Processing, Computer-Assisted
26
2025
1261
3.970
Why?
Molecular Imaging
12
2024
72
3.920
Why?
Fibrosarcoma
15
2025
89
3.550
Why?
Algorithms
22
2025
1953
3.260
Why?
Oximetry
13
2020
90
3.200
Why?
Phantoms, Imaging
24
2025
484
3.070
Why?
Imaging, Three-Dimensional
16
2025
608
2.880
Why?
Diagnostic Imaging
12
2021
452
1.930
Why?
Tumor Hypoxia
8
2025
43
1.930
Why?
Neoplasms, Experimental
10
2016
263
1.790
Why?
Spin Labels
24
2023
105
1.690
Why?
Hypoxia
10
2022
675
1.550
Why?
Radiotherapy, Intensity-Modulated
6
2025
188
1.510
Why?
Mice, Inbred C3H
20
2017
369
1.430
Why?
Neoplasms
17
2024
3169
1.390
Why?
Electrons
3
2017
51
1.170
Why?
Animals
67
2025
28155
1.160
Why?
Mice
44
2025
12269
1.150
Why?
Radiotherapy, Image-Guided
3
2018
62
1.130
Why?
Oxidation-Reduction
7
2023
410
1.070
Why?
Magnetic Resonance Imaging
18
2021
3476
1.060
Why?
Signal Processing, Computer-Assisted
5
2014
196
0.930
Why?
Tomography, X-Ray Computed
6
2024
2585
0.890
Why?
Cell Hypoxia
8
2022
187
0.820
Why?
Mammary Neoplasms, Experimental
2
2014
129
0.740
Why?
Radiotherapy Planning, Computer-Assisted
9
2025
204
0.710
Why?
Sulfhydryl Compounds
3
2023
68
0.690
Why?
Reproducibility of Results
12
2018
2715
0.680
Why?
Image Enhancement
5
2017
505
0.660
Why?
Radiotherapy, Conformal
5
2025
88
0.650
Why?
Radiation Tolerance
2
2013
175
0.640
Why?
Tissue Engineering
2
2017
202
0.560
Why?
Free Radicals
8
2019
71
0.540
Why?
Cyclic N-Oxides
8
2013
32
0.540
Why?
Radiotherapy Dosage
9
2025
472
0.520
Why?
Transplants
1
2017
43
0.510
Why?
Sensitivity and Specificity
9
2015
1922
0.510
Why?
Muscle Neoplasms
1
2017
16
0.500
Why?
Magnetic Fields
1
2016
12
0.500
Why?
Signal-To-Noise Ratio
5
2018
113
0.490
Why?
Magnetic Resonance Spectroscopy
2
2017
295
0.480
Why?
Oxidative Stress
3
2023
467
0.480
Why?
Brain Neoplasms
2
2025
813
0.480
Why?
Cell Line, Tumor
11
2025
2755
0.470
Why?
Bone Marrow
1
2017
409
0.470
Why?
Osteogenesis
1
2017
274
0.460
Why?
Antigens, Neoplasm
2
2017
355
0.450
Why?
Computer Graphics
2
2015
100
0.450
Why?
Image Interpretation, Computer-Assisted
3
2013
626
0.450
Why?
Nitrogen Oxides
8
2016
15
0.450
Why?
Computer Simulation
6
2025
1118
0.430
Why?
Partial Pressure
5
2017
49
0.420
Why?
Artifacts
3
2018
243
0.410
Why?
Diffusion Tensor Imaging
1
2014
76
0.400
Why?
Vascular Endothelial Growth Factor A
2
2013
398
0.390
Why?
Oxygen Consumption
4
2020
238
0.370
Why?
Hindlimb
4
2014
94
0.360
Why?
Humans
51
2025
93515
0.340
Why?
Hydroxyl Radical
4
2000
36
0.330
Why?
Fourier Analysis
3
2024
123
0.320
Why?
Glutathione
2
2023
105
0.320
Why?
Adenocarcinoma
5
2013
1173
0.290
Why?
Printing, Three-Dimensional
2
2020
50
0.280
Why?
Radiation-Protective Agents
2
2012
98
0.270
Why?
Carcinoma
2
2010
439
0.260
Why?
Electromagnetic Fields
4
2014
26
0.250
Why?
X-Ray Microtomography
2
2017
101
0.250
Why?
Urinary Catheterization
1
2006
40
0.240
Why?
Mice, Nude
5
2025
824
0.240
Why?
Superoxides
5
2004
75
0.220
Why?
Misonidazole
2
2022
18
0.220
Why?
Half-Life
6
2017
93
0.210
Why?
Urinary Bladder
1
2006
260
0.210
Why?
Glioblastoma
2
2025
281
0.200
Why?
Data Interpretation, Statistical
3
2013
306
0.200
Why?
Pyridines
3
2000
303
0.190
Why?
Amifostine
1
2003
50
0.190
Why?
Principal Component Analysis
2
2014
167
0.190
Why?
Carcinoma, Squamous Cell
3
2022
1077
0.190
Why?
Mammals
1
2024
259
0.180
Why?
Calibration
2
2017
106
0.170
Why?
Tumor Cells, Cultured
3
2013
1028
0.170
Why?
Female
21
2020
48702
0.170
Why?
Uterine Cervical Neoplasms
3
2020
318
0.170
Why?
Kinetics
6
2016
1492
0.160
Why?
Models, Biological
2
2017
1768
0.160
Why?
High-Intensity Focused Ultrasound Ablation
1
2021
48
0.160
Why?
Rabbits
2
2013
618
0.160
Why?
Body Water
1
1999
35
0.150
Why?
Rats
7
2013
4072
0.150
Why?
Nitric Oxide
4
2009
281
0.150
Why?
Contrast Media
3
2020
988
0.150
Why?
Tritium
2
2016
116
0.150
Why?
X-Rays
2
2006
138
0.140
Why?
Prostatic Neoplasms
7
2009
1775
0.140
Why?
Indoles
1
2000
303
0.140
Why?
Homologous Recombination
1
2019
57
0.140
Why?
Radio Waves
2
2017
20
0.140
Why?
Molecular Structure
5
2005
307
0.140
Why?
Carbon Dioxide
2
1996
203
0.140
Why?
Chitosan
1
2017
17
0.130
Why?
Gamma Rays
1
2017
73
0.130
Why?
Reperfusion Injury
1
2019
148
0.130
Why?
Free Radical Scavengers
2
2012
59
0.130
Why?
Buthionine Sulfoximine
1
2016
7
0.130
Why?
Indenes
1
2017
9
0.130
Why?
Nanoparticles
1
2019
198
0.130
Why?
Indolequinones
1
2016
1
0.130
Why?
Deuterium
1
2017
35
0.130
Why?
Quantum Theory
1
2017
40
0.130
Why?
Tissue Distribution
2
2013
291
0.130
Why?
Disulfides
1
2016
65
0.120
Why?
Kaplan-Meier Estimate
1
2018
876
0.120
Why?
Image-Guided Biopsy
1
2017
78
0.120
Why?
Fluorocarbons
1
1996
50
0.120
Why?
Gonadotropins, Pituitary
1
1995
11
0.120
Why?
Collagen
1
2017
304
0.120
Why?
Radiation-Sensitizing Agents
1
1996
97
0.120
Why?
Absorption, Radiation
1
2015
4
0.110
Why?
Genetic Therapy
2
2009
366
0.110
Why?
Skin Physiological Phenomena
1
2015
18
0.110
Why?
Radiotherapy, Computer-Assisted
1
2015
25
0.110
Why?
Cone-Beam Computed Tomography
1
2016
72
0.110
Why?
Bone Neoplasms
1
2017
313
0.110
Why?
Solutions
3
2005
84
0.110
Why?
Sarcoma, Experimental
1
1994
53
0.110
Why?
Biophysical Phenomena
2
2010
124
0.110
Why?
Androgens
1
1995
162
0.110
Why?
Positron-Emission Tomography
3
2022
349
0.110
Why?
Radiotherapy
4
2013
320
0.110
Why?
Halothane
1
1994
13
0.100
Why?
Electronics
1
2014
19
0.100
Why?
Prostate-Specific Antigen
2
1995
337
0.100
Why?
Anesthesia, Inhalation
1
1994
37
0.100
Why?
Antigens, Polyomavirus Transforming
1
2014
48
0.100
Why?
Anisotropy
1
2014
63
0.100
Why?
Mammary Tumor Virus, Mouse
1
2014
64
0.100
Why?
ROC Curve
1
2016
775
0.100
Why?
Metabolic Clearance Rate
1
2013
117
0.100
Why?
Myasthenia Gravis
1
1994
83
0.100
Why?
Nitrous Oxide
1
1994
107
0.100
Why?
Radiobiology
1
2013
13
0.100
Why?
Mitochondrial Proteins
1
2014
128
0.100
Why?
Liposomes
2
2010
98
0.090
Why?
Tumor Burden
1
2014
321
0.090
Why?
Reactive Oxygen Species
3
2012
502
0.090
Why?
Hydroxylamine
1
2012
7
0.090
Why?
Nuclear Magnetic Resonance, Biomolecular
1
2012
65
0.090
Why?
Endocytosis
2
2010
184
0.090
Why?
Myocardium
4
2002
570
0.090
Why?
Brain Chemistry
1
2012
120
0.090
Why?
Pyrrolidines
3
2004
61
0.090
Why?
Cell Differentiation
1
2017
1621
0.080
Why?
Proteins
1
2016
803
0.080
Why?
Survival Rate
3
2013
1948
0.080
Why?
Cisplatin
2
1994
568
0.080
Why?
Breast Neoplasms
7
2010
3110
0.080
Why?
Hydroxides
1
1990
8
0.080
Why?
Molecular Probes
1
2010
37
0.080
Why?
Cell Physiological Phenomena
1
1990
25
0.080
Why?
Prognosis
4
2013
3911
0.080
Why?
Temperature
3
2016
424
0.080
Why?
Biomarkers, Tumor
2
1995
1660
0.080
Why?
DNA Damage
1
1991
389
0.070
Why?
Diagnosis, Differential
1
2013
1546
0.070
Why?
Immunoglobulin Fab Fragments
1
2010
86
0.070
Why?
Perfusion Imaging
1
2009
48
0.070
Why?
Subtraction Technique
1
2009
125
0.070
Why?
Mice, Knockout
1
2014
2121
0.070
Why?
Drug Delivery Systems
1
2010
194
0.070
Why?
Equipment Design
3
2015
416
0.070
Why?
Signal Transduction
1
2019
3502
0.070
Why?
Receptor, ErbB-2
1
2010
280
0.070
Why?
Head and Neck Neoplasms
2
2013
1073
0.070
Why?
Membrane Proteins
1
2014
1264
0.060
Why?
Statistical Distributions
1
2006
9
0.060
Why?
Software
2
2011
670
0.060
Why?
Spectrophotometry
1
2006
103
0.060
Why?
Administration, Intravesical
1
2006
34
0.060
Why?
Sample Size
1
2006
128
0.060
Why?
Molecular Conformation
2
2005
110
0.060
Why?
Remission Induction
1
2008
738
0.060
Why?
Models, Chemical
1
2007
185
0.060
Why?
Radionuclide Imaging
1
2006
189
0.060
Why?
Xanthine
3
2003
6
0.060
Why?
Xanthine Oxidase
3
2003
25
0.060
Why?
Radon
1
2005
4
0.060
Why?
Lymphocytes
1
2007
454
0.060
Why?
Elastin
1
2004
8
0.050
Why?
Thermometers
1
2004
6
0.050
Why?
Thermography
1
2004
13
0.050
Why?
Xenograft Model Antitumor Assays
1
2006
526
0.050
Why?
Microwaves
2
2017
32
0.050
Why?
Indicators and Reagents
2
2002
69
0.050
Why?
Antibodies, Monoclonal
1
2010
1395
0.050
Why?
Esters
1
2003
31
0.050
Why?
Injections, Intraperitoneal
1
2003
102
0.050
Why?
Biological Availability
1
2003
86
0.050
Why?
Rhabdomyosarcoma
1
2003
43
0.050
Why?
Models, Statistical
1
2006
585
0.050
Why?
Nitric Oxide Donors
1
2002
13
0.050
Why?
Nitroprusside
1
2002
25
0.050
Why?
Chemistry, Organic
1
2002
2
0.050
Why?
Pyrroles
1
2003
165
0.050
Why?
Dioxoles
1
2002
8
0.050
Why?
Mice, Inbred BALB C
1
2025
1101
0.050
Why?
Vasospasm, Intracranial
1
2002
36
0.050
Why?
Heterocyclic Compounds, 3-Ring
1
2002
42
0.050
Why?
Biomedical Research
2
2003
438
0.040
Why?
Flavanones
1
2002
35
0.040
Why?
Models, Animal
1
2003
282
0.040
Why?
Flavonoids
1
2002
85
0.040
Why?
Administration, Oral
1
2003
657
0.040
Why?
Acoustics
1
2021
46
0.040
Why?
Microbubbles
1
2021
39
0.040
Why?
Mesencephalon
1
2001
68
0.040
Why?
Peptides
1
2004
656
0.040
Why?
Radiopharmaceuticals
1
2022
203
0.040
Why?
X-Ray Film
1
2020
37
0.040
Why?
Polyesters
1
2020
44
0.040
Why?
Proof of Concept Study
1
2020
56
0.040
Why?
Organ Sparing Treatments
1
2020
47
0.040
Why?
Equipment Failure Analysis
2
2015
88
0.040
Why?
Antioxidants
1
2002
231
0.040
Why?
Lung Neoplasms
5
1995
2365
0.040
Why?
Copper
1
2020
79
0.040
Why?
Positron Emission Tomography Computed Tomography
1
2021
104
0.040
Why?
Optical Imaging
1
2020
51
0.040
Why?
Viscosity
1
1999
51
0.040
Why?
Dopamine
1
2001
276
0.040
Why?
Phenotype
1
2006
2544
0.040
Why?
Radiation Injuries
3
1997
158
0.040
Why?
Cell Line
2
1996
2464
0.040
Why?
Iron Chelating Agents
1
1999
4
0.040
Why?
Neoplasm Transplantation
2
2003
399
0.040
Why?
Multimodal Imaging
1
2020
109
0.040
Why?
Porosity
1
2019
64
0.040
Why?
Parkinson Disease
1
2001
175
0.040
Why?
Fluorescence
1
2019
100
0.040
Why?
Small Ubiquitin-Related Modifier Proteins
1
2019
13
0.040
Why?
Silicon Dioxide
1
2019
39
0.040
Why?
Heart
1
2002
522
0.040
Why?
Ubiquitins
1
2019
36
0.040
Why?
Combined Modality Therapy
6
2009
1723
0.040
Why?
Knee Joint
1
2019
161
0.040
Why?
Analysis of Variance
2
2001
884
0.030
Why?
Diffusion Magnetic Resonance Imaging
1
2020
297
0.030
Why?
Aged, 80 and over
8
1997
7061
0.030
Why?
Multivariate Analysis
3
2013
985
0.030
Why?
Rectal Diseases
1
1997
23
0.030
Why?
Hydrocarbons, Brominated
1
1996
4
0.030
Why?
Male
10
2019
44557
0.030
Why?
Biophysics
1
1996
153
0.030
Why?
Binding Sites
2
2016
1133
0.030
Why?
Disease-Free Survival
2
2013
1170
0.030
Why?
Rectum
1
1997
149
0.030
Why?
Hemibody Irradiation
1
1995
1
0.030
Why?
Hemoglobin A
1
1995
8
0.030
Why?
Middle Aged
12
2013
27573
0.030
Why?
Neoplasm Proteins
1
2019
537
0.030
Why?
Platelet Count
1
1995
90
0.030
Why?
Chromatin
1
2019
440
0.030
Why?
Leukocyte Count
1
1995
210
0.030
Why?
Transducers
1
2015
37
0.030
Why?
Cell Division
1
1996
693
0.030
Why?
Radiation, Ionizing
1
1995
123
0.030
Why?
Radiation Dosage
1
2015
229
0.030
Why?
Vital Capacity
1
1994
73
0.030
Why?
Retrospective Studies
3
2025
10164
0.030
Why?
Quality Control
1
2013
123
0.020
Why?
Bone Marrow Transplantation
1
1994
281
0.020
Why?
Dermatitis
1
2013
34
0.020
Why?
Aged
10
2001
20434
0.020
Why?
Radiotherapy, High-Energy
1
1993
44
0.020
Why?
Erythropoietin
1
1993
90
0.020
Why?
Symporters
1
2013
112
0.020
Why?
Alcohol Dehydrogenase
1
1993
42
0.020
Why?
Aldehyde Dehydrogenase
1
1993
17
0.020
Why?
Neoplasm Staging
3
1997
2017
0.020
Why?
Time Factors
4
1995
5410
0.020
Why?
Carcinoma, Non-Small-Cell Lung
2
1991
1133
0.020
Why?
Respiration
1
1994
269
0.020
Why?
Anemia
1
1993
134
0.020
Why?
Logistic Models
1
1995
1243
0.020
Why?
Incidence
2
1994
1701
0.020
Why?
Spin Trapping
2
2003
4
0.020
Why?
Memory
1
1994
227
0.020
Why?
Triacetoneamine-N-Oxyl
1
1991
3
0.020
Why?
Movement
1
2013
304
0.020
Why?
Technology, Radiologic
1
1992
103
0.020
Why?
Heart Rate
1
1994
505
0.020
Why?
Background Radiation
1
2011
1
0.020
Why?
Clinical Protocols
1
1991
154
0.020
Why?
Cells, Cultured
2
2009
2850
0.020
Why?
Drug Resistance
1
1991
233
0.020
Why?
Cricetinae
1
1991
532
0.020
Why?
Supratentorial Neoplasms
1
1990
10
0.020
Why?
Patient Satisfaction
1
1994
484
0.020
Why?
Vulva
1
1990
23
0.020
Why?
Cross-Sectional Studies
1
1995
1847
0.020
Why?
Astrocytoma
1
1990
86
0.020
Why?
Peroxidases
1
1990
34
0.020
Why?
Vulvar Neoplasms
1
1990
19
0.020
Why?
Vitamin K
1
1990
25
0.020
Why?
Blood Pressure
1
1994
896
0.020
Why?
Cells
1
1990
30
0.020
Why?
Trastuzumab
1
2010
86
0.020
Why?
Prostate
1
1992
416
0.020
Why?
Treatment Outcome
2
2013
9099
0.020
Why?
Microscopy, Fluorescence
1
2010
436
0.020
Why?
Treatment Failure
2
2002
292
0.020
Why?
Transfection
1
2010
880
0.020
Why?
Adult
8
1997
27918
0.020
Why?
Liver
1
1993
1210
0.020
Why?
Jurkat Cells
1
2007
84
0.020
Why?
Up-Regulation
1
2010
730
0.020
Why?
Hemoglobins
2
2002
191
0.020
Why?
Lymph Nodes
1
1990
548
0.010
Why?
Nose Neoplasms
1
1984
36
0.010
Why?
Materials Testing
1
2004
96
0.010
Why?
Nasopharyngeal Neoplasms
1
1984
46
0.010
Why?
Antineoplastic Combined Chemotherapy Protocols
1
1994
2544
0.010
Why?
Antibodies, Monoclonal, Humanized
1
2010
1001
0.010
Why?
Cytochromes c
1
2003
27
0.010
Why?
Hot Temperature
1
2004
218
0.010
Why?
Technology Assessment, Biomedical
1
2003
24
0.010
Why?
Binding, Competitive
1
2003
141
0.010
Why?
Follow-Up Studies
3
2001
3830
0.010
Why?
Biocompatible Materials
1
2004
202
0.010
Why?
Research Support as Topic
1
2003
89
0.010
Why?
Cisterna Magna
1
2002
7
0.010
Why?
Phosgene
1
2002
1
0.010
Why?
United States Food and Drug Administration
1
2003
142
0.010
Why?
Macaca fascicularis
1
2002
111
0.010
Why?
Hydrogen-Ion Concentration
1
2003
493
0.010
Why?
National Institutes of Health (U.S.)
1
2003
135
0.010
Why?
Radiography, Interventional
1
2003
148
0.010
Why?
Cyclic GMP
1
2002
62
0.010
Why?
Cerebral Arteries
1
2002
74
0.010
Why?
Phenols
1
2002
41
0.010
Why?
Asteraceae
1
2002
4
0.010
Why?
Injections
1
2002
124
0.010
Why?
Myocardial Reperfusion
1
2002
24
0.010
Why?
Microscopy, Video
1
2002
36
0.010
Why?
Catalysis
1
2002
216
0.010
Why?
Mitochondria, Heart
1
2002
48
0.010
Why?
Chick Embryo
1
2002
222
0.010
Why?
Oxidants
1
2002
86
0.010
Why?
Cerebral Angiography
1
2002
211
0.010
Why?
Chelating Agents
1
2002
68
0.010
Why?
Regression Analysis
2
1995
579
0.010
Why?
Actuarial Analysis
1
2001
60
0.010
Why?
Neuroblastoma
1
1984
396
0.010
Why?
Myocardial Ischemia
1
2002
140
0.010
Why?
Perfusion
1
2002
260
0.010
Why?
Plant Extracts
1
2002
247
0.010
Why?
Sarcosine
1
1999
2
0.010
Why?
Thiocarbamates
1
1999
6
0.010
Why?
Drug Stability
1
1999
48
0.010
Why?
Rats, Sprague-Dawley
1
2001
1245
0.010
Why?
Risk Factors
2
2001
5899
0.010
Why?
Fibroblasts
1
2001
756
0.010
Why?
Mitochondria
1
2001
612
0.010
Why?
Dose-Response Relationship, Radiation
1
1997
193
0.010
Why?
Chicago
1
2001
1464
0.010
Why?
United States
2
2003
7622
0.010
Why?
Vincristine
1
1994
99
0.010
Why?
Mitoxantrone
1
1994
65
0.010
Why?
Genital Neoplasms, Female
1
1995
112
0.010
Why?
Methotrexate
1
1994
225
0.010
Why?
Cyclophosphamide
1
1994
278
0.010
Why?
Doxorubicin
1
1994
284
0.010
Why?
Injections, Subcutaneous
1
1993
131
0.010
Why?
Alcohols
1
1993
14
0.010
Why?
Horses
1
1993
35
0.010
Why?
Fluorouracil
1
1994
524
0.010
Why?
Radioimmunoassay
1
1992
144
0.010
Why?
Substrate Specificity
1
1993
363
0.010
Why?
Brain
1
2002
2391
0.010
Why?
Recombinant Proteins
1
1993
988
0.010
Why?
In Vitro Techniques
1
1993
948
0.010
Why?
Xanthines
1
1991
3
0.010
Why?
Acute Disease
1
1993
841
0.010
Why?
Radiation
1
1990
16
0.010
Why?
Neutrons
1
1990
57
0.010
Why?
Dose-Response Relationship, Drug
1
1994
1914
0.010
Why?
Neoplasm Metastasis
1
1994
1061
0.000
Why?
Esthetics
1
1989
50
0.000
Why?
Neutrophils
1
1991
324
0.000
Why?
Carcinoma, Intraductal, Noninfiltrating
1
1989
122
0.000
Why?
Mastectomy, Segmental
1
1989
107
0.000
Why?
Hysterectomy
1
1990
167
0.000
Why?
Mathematics
1
1988
180
0.000
Why?
Rats, Inbred Strains
1
1988
304
0.000
Why?
Lymph Node Excision
1
1989
233
0.000
Why?
Preoperative Care
1
1990
406
0.000
Why?
Recurrence
1
1990
1190
0.000
Why?
Survival Analysis
1
1990
1524
0.000
Why?
Clinical Trials as Topic
1
1990
1103
0.000
Why?
Keratins
1
1984
62
0.000
Why?
Prospective Studies
1
1993
4560
0.000
Why?
Carcinoma, Small Cell
1
1984
115
0.000
Why?
Cytoplasm
1
1984
278
0.000
Why?
Neoplasm Recurrence, Local
1
1989
1448
0.000
Why?
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