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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
329
16.280
Why?
Oxygen
47
2025
787
10.190
Why?
Molecular Imaging
12
2024
72
4.020
Why?
Image Processing, Computer-Assisted
26
2025
1324
4.010
Why?
Fibrosarcoma
15
2025
90
3.640
Why?
Algorithms
22
2025
2011
3.290
Why?
Oximetry
13
2020
90
3.280
Why?
Phantoms, Imaging
24
2025
488
3.140
Why?
Imaging, Three-Dimensional
16
2025
619
2.940
Why?
Tumor Hypoxia
8
2025
43
1.970
Why?
Diagnostic Imaging
12
2021
473
1.950
Why?
Neoplasms, Experimental
10
2016
271
1.830
Why?
Spin Labels
24
2023
107
1.730
Why?
Hypoxia
10
2022
683
1.570
Why?
Radiotherapy, Intensity-Modulated
6
2025
188
1.550
Why?
Mice, Inbred C3H
20
2017
372
1.460
Why?
Neoplasms
17
2024
3246
1.400
Why?
Electrons
3
2017
51
1.200
Why?
Animals
67
2025
28924
1.170
Why?
Radiotherapy, Image-Guided
3
2018
62
1.160
Why?
Mice
44
2025
12559
1.160
Why?
Oxidation-Reduction
7
2023
411
1.090
Why?
Magnetic Resonance Imaging
18
2021
3635
1.060
Why?
Signal Processing, Computer-Assisted
5
2014
205
0.950
Why?
Tomography, X-Ray Computed
6
2024
2755
0.900
Why?
Cell Hypoxia
8
2022
188
0.840
Why?
Mammary Neoplasms, Experimental
2
2014
130
0.750
Why?
Radiotherapy Planning, Computer-Assisted
9
2025
204
0.720
Why?
Sulfhydryl Compounds
3
2023
72
0.710
Why?
Reproducibility of Results
12
2018
2876
0.680
Why?
Radiotherapy, Conformal
5
2025
89
0.670
Why?
Image Enhancement
5
2017
565
0.660
Why?
Radiation Tolerance
2
2013
176
0.650
Why?
Tissue Engineering
2
2017
200
0.580
Why?
Free Radicals
8
2019
71
0.550
Why?
Cyclic N-Oxides
8
2013
33
0.550
Why?
Radiotherapy Dosage
9
2025
482
0.530
Why?
Transplants
1
2017
43
0.530
Why?
Muscle Neoplasms
1
2017
17
0.520
Why?
Magnetic Fields
1
2016
12
0.510
Why?
Sensitivity and Specificity
9
2015
2040
0.510
Why?
Signal-To-Noise Ratio
5
2018
114
0.500
Why?
Magnetic Resonance Spectroscopy
2
2017
325
0.490
Why?
Oxidative Stress
3
2023
484
0.490
Why?
Brain Neoplasms
2
2025
844
0.480
Why?
Bone Marrow
1
2017
457
0.480
Why?
Cell Line, Tumor
11
2025
2785
0.480
Why?
Osteogenesis
1
2017
272
0.470
Why?
Antigens, Neoplasm
2
2017
357
0.460
Why?
Computer Graphics
2
2015
102
0.460
Why?
Nitrogen Oxides
8
2016
15
0.460
Why?
Image Interpretation, Computer-Assisted
3
2013
703
0.440
Why?
Computer Simulation
6
2025
1158
0.440
Why?
Partial Pressure
5
2017
51
0.430
Why?
Artifacts
3
2018
251
0.420
Why?
Diffusion Tensor Imaging
1
2014
76
0.410
Why?
Vascular Endothelial Growth Factor A
2
2013
408
0.400
Why?
Oxygen Consumption
4
2020
257
0.380
Why?
Hindlimb
4
2014
96
0.370
Why?
Humans
51
2025
95971
0.340
Why?
Hydroxyl Radical
4
2000
36
0.340
Why?
Fourier Analysis
3
2024
128
0.330
Why?
Glutathione
2
2023
106
0.320
Why?
Adenocarcinoma
5
2013
1208
0.290
Why?
Printing, Three-Dimensional
2
2020
49
0.290
Why?
Radiation-Protective Agents
2
2012
99
0.280
Why?
Carcinoma
2
2010
449
0.270
Why?
Electromagnetic Fields
4
2014
28
0.260
Why?
X-Ray Microtomography
2
2017
98
0.250
Why?
Urinary Catheterization
1
2006
40
0.250
Why?
Mice, Nude
5
2025
842
0.240
Why?
Superoxides
5
2004
76
0.230
Why?
Misonidazole
2
2022
18
0.220
Why?
Half-Life
6
2017
99
0.220
Why?
Urinary Bladder
1
2006
263
0.210
Why?
Glioblastoma
2
2025
284
0.210
Why?
Data Interpretation, Statistical
3
2013
312
0.200
Why?
Amifostine
1
2003
51
0.200
Why?
Pyridines
3
2000
319
0.200
Why?
Principal Component Analysis
2
2014
168
0.200
Why?
Carcinoma, Squamous Cell
3
2022
1105
0.190
Why?
Mammals
1
2024
261
0.180
Why?
Calibration
2
2017
108
0.180
Why?
Tumor Cells, Cultured
3
2013
1050
0.170
Why?
Uterine Cervical Neoplasms
3
2020
319
0.170
Why?
Female
21
2020
49938
0.170
Why?
High-Intensity Focused Ultrasound Ablation
1
2021
48
0.170
Why?
Kinetics
6
2016
1562
0.170
Why?
Rabbits
2
2013
649
0.170
Why?
Models, Biological
2
2017
1814
0.160
Why?
Body Water
1
1999
35
0.160
Why?
Rats
7
2013
4134
0.160
Why?
Nitric Oxide
4
2009
280
0.150
Why?
Tritium
2
2016
134
0.150
Why?
Contrast Media
3
2020
1095
0.150
Why?
X-Rays
2
2006
139
0.150
Why?
Prostatic Neoplasms
7
2009
1795
0.150
Why?
Homologous Recombination
1
2019
57
0.140
Why?
Indoles
1
2000
317
0.140
Why?
Radio Waves
2
2017
20
0.140
Why?
Molecular Structure
5
2005
309
0.140
Why?
Carbon Dioxide
2
1996
212
0.140
Why?
Chitosan
1
2017
17
0.140
Why?
Gamma Rays
1
2017
73
0.140
Why?
Reperfusion Injury
1
2019
148
0.140
Why?
Free Radical Scavengers
2
2012
60
0.130
Why?
Buthionine Sulfoximine
1
2016
6
0.130
Why?
Indenes
1
2017
9
0.130
Why?
Indolequinones
1
2016
1
0.130
Why?
Nanoparticles
1
2019
197
0.130
Why?
Deuterium
1
2017
35
0.130
Why?
Quantum Theory
1
2017
40
0.130
Why?
Tissue Distribution
2
2013
296
0.130
Why?
Disulfides
1
2016
65
0.130
Why?
Kaplan-Meier Estimate
1
2018
880
0.120
Why?
Image-Guided Biopsy
1
2017
81
0.120
Why?
Gonadotropins, Pituitary
1
1995
11
0.120
Why?
Fluorocarbons
1
1996
72
0.120
Why?
Collagen
1
2017
311
0.120
Why?
Radiation-Sensitizing Agents
1
1996
100
0.120
Why?
Absorption, Radiation
1
2015
4
0.120
Why?
Radiotherapy, Computer-Assisted
1
2015
25
0.120
Why?
Genetic Therapy
2
2009
382
0.120
Why?
Skin Physiological Phenomena
1
2015
27
0.120
Why?
Cone-Beam Computed Tomography
1
2016
72
0.110
Why?
Solutions
3
2005
86
0.110
Why?
Sarcoma, Experimental
1
1994
53
0.110
Why?
Biophysical Phenomena
2
2010
125
0.110
Why?
Bone Neoplasms
1
2017
319
0.110
Why?
Positron-Emission Tomography
3
2022
353
0.110
Why?
Androgens
1
1995
179
0.110
Why?
Radiotherapy
4
2013
328
0.110
Why?
Halothane
1
1994
13
0.110
Why?
Electronics
1
2014
20
0.110
Why?
Prostate-Specific Antigen
2
1995
346
0.110
Why?
Anesthesia, Inhalation
1
1994
37
0.110
Why?
Antigens, Polyomavirus Transforming
1
2014
48
0.100
Why?
Anisotropy
1
2014
65
0.100
Why?
Mammary Tumor Virus, Mouse
1
2014
64
0.100
Why?
Metabolic Clearance Rate
1
2013
119
0.100
Why?
Myasthenia Gravis
1
1994
83
0.100
Why?
ROC Curve
1
2016
798
0.100
Why?
Nitrous Oxide
1
1994
107
0.100
Why?
Radiobiology
1
2013
13
0.100
Why?
Mitochondrial Proteins
1
2014
129
0.100
Why?
Liposomes
2
2010
101
0.100
Why?
Tumor Burden
1
2014
323
0.090
Why?
Reactive Oxygen Species
3
2012
517
0.090
Why?
Hydroxylamine
1
2012
7
0.090
Why?
Nuclear Magnetic Resonance, Biomolecular
1
2012
66
0.090
Why?
Myocardium
4
2002
596
0.090
Why?
Brain Chemistry
1
2012
120
0.090
Why?
Endocytosis
2
2010
186
0.090
Why?
Pyrrolidines
3
2004
61
0.090
Why?
Cell Differentiation
1
2017
1666
0.080
Why?
Proteins
1
2016
817
0.080
Why?
Survival Rate
3
2013
1978
0.080
Why?
Cisplatin
2
1994
611
0.080
Why?
Hydroxides
1
1990
9
0.080
Why?
Breast Neoplasms
7
2010
3142
0.080
Why?
Molecular Probes
1
2010
37
0.080
Why?
Cell Physiological Phenomena
1
1990
27
0.080
Why?
Temperature
3
2016
426
0.080
Why?
Prognosis
4
2013
4024
0.080
Why?
Biomarkers, Tumor
2
1995
1662
0.080
Why?
DNA Damage
1
1991
392
0.080
Why?
Immunoglobulin Fab Fragments
1
2010
87
0.080
Why?
Perfusion Imaging
1
2009
52
0.070
Why?
Diagnosis, Differential
1
2013
1618
0.070
Why?
Subtraction Technique
1
2009
130
0.070
Why?
Drug Delivery Systems
1
2010
195
0.070
Why?
Mice, Knockout
1
2014
2163
0.070
Why?
Equipment Design
3
2015
427
0.070
Why?
Signal Transduction
1
2019
3587
0.070
Why?
Receptor, ErbB-2
1
2010
280
0.070
Why?
Head and Neck Neoplasms
2
2013
1088
0.070
Why?
Statistical Distributions
1
2006
9
0.070
Why?
Membrane Proteins
1
2014
1277
0.060
Why?
Software
2
2011
699
0.060
Why?
Administration, Intravesical
1
2006
34
0.060
Why?
Spectrophotometry
1
2006
108
0.060
Why?
Sample Size
1
2006
128
0.060
Why?
Molecular Conformation
2
2005
111
0.060
Why?
Remission Induction
1
2008
769
0.060
Why?
Models, Chemical
1
2007
187
0.060
Why?
Xanthine
3
2003
6
0.060
Why?
Radionuclide Imaging
1
2006
217
0.060
Why?
Xanthine Oxidase
3
2003
25
0.060
Why?
Radon
1
2005
4
0.060
Why?
Lymphocytes
1
2007
489
0.060
Why?
Elastin
1
2004
8
0.060
Why?
Thermometers
1
2004
6
0.060
Why?
Thermography
1
2004
12
0.060
Why?
Xenograft Model Antitumor Assays
1
2006
535
0.050
Why?
Microwaves
2
2017
32
0.050
Why?
Indicators and Reagents
2
2002
71
0.050
Why?
Esters
1
2003
31
0.050
Why?
Antibodies, Monoclonal
1
2010
1430
0.050
Why?
Injections, Intraperitoneal
1
2003
102
0.050
Why?
Biological Availability
1
2003
90
0.050
Why?
Rhabdomyosarcoma
1
2003
43
0.050
Why?
Nitric Oxide Donors
1
2002
13
0.050
Why?
Nitroprusside
1
2002
32
0.050
Why?
Chemistry, Organic
1
2002
2
0.050
Why?
Models, Statistical
1
2006
594
0.050
Why?
Dioxoles
1
2002
8
0.050
Why?
Pyrroles
1
2003
172
0.050
Why?
Mice, Inbred BALB C
1
2025
1125
0.050
Why?
Vasospasm, Intracranial
1
2002
36
0.050
Why?
Heterocyclic Compounds, 3-Ring
1
2002
44
0.050
Why?
Flavanones
1
2002
35
0.050
Why?
Models, Animal
1
2003
287
0.050
Why?
Biomedical Research
2
2003
440
0.050
Why?
Flavonoids
1
2002
85
0.040
Why?
Acoustics
1
2021
51
0.040
Why?
Administration, Oral
1
2003
690
0.040
Why?
Microbubbles
1
2021
41
0.040
Why?
Mesencephalon
1
2001
68
0.040
Why?
Radiopharmaceuticals
1
2022
203
0.040
Why?
X-Ray Film
1
2020
37
0.040
Why?
Peptides
1
2004
672
0.040
Why?
Polyesters
1
2020
43
0.040
Why?
Proof of Concept Study
1
2020
56
0.040
Why?
Equipment Failure Analysis
2
2015
89
0.040
Why?
Organ Sparing Treatments
1
2020
47
0.040
Why?
Antioxidants
1
2002
233
0.040
Why?
Copper
1
2020
81
0.040
Why?
Lung Neoplasms
5
1995
2464
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
282
0.040
Why?
Radiation Injuries
3
1997
164
0.040
Why?
Phenotype
1
2006
2580
0.040
Why?
Iron Chelating Agents
1
1999
4
0.040
Why?
Cell Line
2
1996
2533
0.040
Why?
Neoplasm Transplantation
2
2003
406
0.040
Why?
Multimodal Imaging
1
2020
115
0.040
Why?
Porosity
1
2019
64
0.040
Why?
Small Ubiquitin-Related Modifier Proteins
1
2019
13
0.040
Why?
Silicon Dioxide
1
2019
39
0.040
Why?
Fluorescence
1
2019
106
0.040
Why?
Parkinson Disease
1
2001
178
0.040
Why?
Ubiquitins
1
2019
38
0.040
Why?
Heart
1
2002
591
0.040
Why?
Combined Modality Therapy
6
2009
1765
0.040
Why?
Knee Joint
1
2019
166
0.040
Why?
Analysis of Variance
2
2001
912
0.030
Why?
Diffusion Magnetic Resonance Imaging
1
2020
301
0.030
Why?
Aged, 80 and over
8
1997
7205
0.030
Why?
Multivariate Analysis
3
2013
1007
0.030
Why?
Rectal Diseases
1
1997
23
0.030
Why?
Hydrocarbons, Brominated
1
1996
4
0.030
Why?
Biophysics
1
1996
157
0.030
Why?
Male
10
2019
45735
0.030
Why?
Rectum
1
1997
151
0.030
Why?
Hemibody Irradiation
1
1995
1
0.030
Why?
Binding Sites
2
2016
1167
0.030
Why?
Disease-Free Survival
2
2013
1194
0.030
Why?
Hemoglobin A
1
1995
8
0.030
Why?
Platelet Count
1
1995
96
0.030
Why?
Chromatin
1
2019
446
0.030
Why?
Middle Aged
12
2013
28255
0.030
Why?
Neoplasm Proteins
1
2019
554
0.030
Why?
Leukocyte Count
1
1995
228
0.030
Why?
Transducers
1
2015
45
0.030
Why?
Cell Division
1
1996
705
0.030
Why?
Radiation, Ionizing
1
1995
124
0.030
Why?
Radiation Dosage
1
2015
236
0.030
Why?
Vital Capacity
1
1994
73
0.030
Why?
Retrospective Studies
3
2025
10190
0.030
Why?
Quality Control
1
2013
125
0.030
Why?
Bone Marrow Transplantation
1
1994
292
0.030
Why?
Dermatitis
1
2013
35
0.030
Why?
Aged
10
2001
20877
0.020
Why?
Radiotherapy, High-Energy
1
1993
49
0.020
Why?
Erythropoietin
1
1993
91
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
2082
0.020
Why?
Time Factors
4
1995
5577
0.020
Why?
Carcinoma, Non-Small-Cell Lung
2
1991
1173
0.020
Why?
Anemia
1
1993
137
0.020
Why?
Respiration
1
1994
281
0.020
Why?
Logistic Models
1
1995
1263
0.020
Why?
Spin Trapping
2
2003
4
0.020
Why?
Incidence
2
1994
1705
0.020
Why?
Memory
1
1994
229
0.020
Why?
Triacetoneamine-N-Oxyl
1
1991
3
0.020
Why?
Technology, Radiologic
1
1992
104
0.020
Why?
Movement
1
2013
324
0.020
Why?
Background Radiation
1
2011
1
0.020
Why?
Heart Rate
1
1994
519
0.020
Why?
Clinical Protocols
1
1991
161
0.020
Why?
Cells, Cultured
2
2009
2943
0.020
Why?
Drug Resistance
1
1991
237
0.020
Why?
Supratentorial Neoplasms
1
1990
10
0.020
Why?
Cricetinae
1
1991
544
0.020
Why?
Patient Satisfaction
1
1994
515
0.020
Why?
Vulva
1
1990
23
0.020
Why?
Peroxidases
1
1990
34
0.020
Why?
Vulvar Neoplasms
1
1990
19
0.020
Why?
Astrocytoma
1
1990
88
0.020
Why?
Cross-Sectional Studies
1
1995
1875
0.020
Why?
Vitamin K
1
1990
25
0.020
Why?
Cells
1
1990
31
0.020
Why?
Blood Pressure
1
1994
929
0.020
Why?
Trastuzumab
1
2010
88
0.020
Why?
Prostate
1
1992
422
0.020
Why?
Treatment Outcome
2
2013
9092
0.020
Why?
Treatment Failure
2
2002
296
0.020
Why?
Microscopy, Fluorescence
1
2010
444
0.020
Why?
Transfection
1
2010
907
0.020
Why?
Liver
1
1993
1237
0.020
Why?
Adult
8
1997
28637
0.020
Why?
Jurkat Cells
1
2007
83
0.020
Why?
Up-Regulation
1
2010
741
0.020
Why?
Hemoglobins
2
2002
196
0.020
Why?
Lymph Nodes
1
1990
566
0.020
Why?
Nose Neoplasms
1
1984
36
0.010
Why?
Materials Testing
1
2004
94
0.010
Why?
Nasopharyngeal Neoplasms
1
1984
47
0.010
Why?
Antineoplastic Combined Chemotherapy Protocols
1
1994
2641
0.010
Why?
Hot Temperature
1
2004
217
0.010
Why?
Cytochromes c
1
2003
28
0.010
Why?
Antibodies, Monoclonal, Humanized
1
2010
1020
0.010
Why?
Technology Assessment, Biomedical
1
2003
27
0.010
Why?
Binding, Competitive
1
2003
147
0.010
Why?
Follow-Up Studies
3
2001
3901
0.010
Why?
Biocompatible Materials
1
2004
199
0.010
Why?
Research Support as Topic
1
2003
92
0.010
Why?
Phosgene
1
2002
1
0.010
Why?
Cisterna Magna
1
2002
11
0.010
Why?
Macaca fascicularis
1
2002
112
0.010
Why?
United States Food and Drug Administration
1
2003
146
0.010
Why?
Hydrogen-Ion Concentration
1
2003
509
0.010
Why?
Radiography, Interventional
1
2003
151
0.010
Why?
National Institutes of Health (U.S.)
1
2003
137
0.010
Why?
Cyclic GMP
1
2002
62
0.010
Why?
Cerebral Arteries
1
2002
76
0.010
Why?
Phenols
1
2002
42
0.010
Why?
Asteraceae
1
2002
4
0.010
Why?
Injections
1
2002
125
0.010
Why?
Myocardial Reperfusion
1
2002
28
0.010
Why?
Microscopy, Video
1
2002
36
0.010
Why?
Catalysis
1
2002
216
0.010
Why?
Mitochondria, Heart
1
2002
52
0.010
Why?
Chick Embryo
1
2002
227
0.010
Why?
Oxidants
1
2002
86
0.010
Why?
Cerebral Angiography
1
2002
214
0.010
Why?
Chelating Agents
1
2002
68
0.010
Why?
Regression Analysis
2
1995
599
0.010
Why?
Actuarial Analysis
1
2001
66
0.010
Why?
Neuroblastoma
1
1984
400
0.010
Why?
Myocardial Ischemia
1
2002
167
0.010
Why?
Perfusion
1
2002
266
0.010
Why?
Plant Extracts
1
2002
248
0.010
Why?
Sarcosine
1
1999
2
0.010
Why?
Thiocarbamates
1
1999
6
0.010
Why?
Drug Stability
1
1999
50
0.010
Why?
Rats, Sprague-Dawley
1
2001
1264
0.010
Why?
Risk Factors
2
2001
5949
0.010
Why?
Fibroblasts
1
2001
780
0.010
Why?
Mitochondria
1
2001
623
0.010
Why?
Dose-Response Relationship, Radiation
1
1997
192
0.010
Why?
Chicago
1
2001
1504
0.010
Why?
United States
2
2003
7762
0.010
Why?
Vincristine
1
1994
112
0.010
Why?
Mitoxantrone
1
1994
68
0.010
Why?
Genital Neoplasms, Female
1
1995
114
0.010
Why?
Methotrexate
1
1994
248
0.010
Why?
Cyclophosphamide
1
1994
311
0.010
Why?
Doxorubicin
1
1994
303
0.010
Why?
Injections, Subcutaneous
1
1993
134
0.010
Why?
Alcohols
1
1993
15
0.010
Why?
Horses
1
1993
36
0.010
Why?
Fluorouracil
1
1994
555
0.010
Why?
Radioimmunoassay
1
1992
151
0.010
Why?
Substrate Specificity
1
1993
368
0.010
Why?
Brain
1
2002
2480
0.010
Why?
Recombinant Proteins
1
1993
1028
0.010
Why?
In Vitro Techniques
1
1993
1010
0.010
Why?
Xanthines
1
1991
3
0.010
Why?
Acute Disease
1
1993
871
0.010
Why?
Radiation
1
1990
16
0.010
Why?
Neutrons
1
1990
57
0.010
Why?
Dose-Response Relationship, Drug
1
1994
1969
0.010
Why?
Neoplasm Metastasis
1
1994
1101
0.010
Why?
Esthetics
1
1989
50
0.000
Why?
Neutrophils
1
1991
334
0.000
Why?
Mastectomy, Segmental
1
1989
108
0.000
Why?
Hysterectomy
1
1990
168
0.000
Why?
Carcinoma, Intraductal, Noninfiltrating
1
1989
125
0.000
Why?
Rats, Inbred Strains
1
1988
311
0.000
Why?
Mathematics
1
1988
191
0.000
Why?
Lymph Node Excision
1
1989
235
0.000
Why?
Preoperative Care
1
1990
415
0.000
Why?
Recurrence
1
1990
1216
0.000
Why?
Survival Analysis
1
1990
1536
0.000
Why?
Clinical Trials as Topic
1
1990
1178
0.000
Why?
Keratins
1
1984
64
0.000
Why?
Prospective Studies
1
1993
4663
0.000
Why?
Carcinoma, Small Cell
1
1984
137
0.000
Why?
Cytoplasm
1
1984
288
0.000
Why?
Neoplasm Recurrence, Local
1
1989
1461
0.000
Why?
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