World's Best Scientists 2026 revealed!
G. Allan Johnson

G. Allan Johnson

D-Index & Metrics

Medicine

D-Index
79
Citations
22110
World Ranking
17594
National Ranking
8795

G. Allan Johnson publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where G. Allan Johnson sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 611 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 424 publications — 44th percentile

44% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

G. Allan Johnson D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where G. Allan Johnson sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 400 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 79 D-Index — 14th percentile

14% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Overview

G. Allan Johnson is affiliated with Duke University in the United States and has contributed extensively to the field of medicine, particularly within radiology, nuclear medicine, and imaging. Their publication record shows a strong focus on advanced neuroimaging techniques and applications, advanced MRI techniques and applications, and functional brain connectivity studies.

Their research spans several main topics, including:

  • Advanced Neuroimaging Techniques and Applications
  • Advanced MRI Techniques and Applications
  • Functional Brain Connectivity Studies
  • MRI in cancer diagnosis
  • Cell Image Analysis Techniques
  • Advanced Fluorescence Microscopy Techniques
  • Bone and Joint Diseases

Johnson's recent research output includes notable papers such as:

  • "Variability and heritability of mouse brain structure: Microscopic MRI atlases and connectomes for diverse strains" (2020, NeuroImage)
  • "Cytoarchitecture of the mouse brain by high resolution diffusion magnetic resonance imaging" (2020, NeuroImage)
  • "Merged magnetic resonance and light sheet microscopy of the whole mouse brain" (2023, Proceedings of the National Academy of Sciences)
  • "A high-resolution interactive atlas of the human brainstem using magnetic resonance imaging" (2021, NeuroImage)
  • "MRI-Based Deep Learning Segmentation and Radiomics of Sarcoma in Mice" (2020, Tomography)

Frequent coauthors in their research include Gary P. Cofer, Yi Qi, Leonard White, Kathryn J. Hornburg, and James J. Cook. Johnson has published papers predominantly in venues such as bioRxiv (Cold Spring Harbor Laboratory), UNC Libraries, NeuroImage, arXiv (Cornell University), and Magnetic Resonance in Medicine.

The scope of the subfields in which they are active includes:

  • Radiology, Nuclear Medicine and Imaging
  • Cognitive Neuroscience
  • Pediatrics, Perinatology and Child Health
  • Biophysics
  • Molecular Biology

Best Publications

  • Development of a 4-D digital mouse phantom for molecular imaging research.

    William.P. Segars;Benjamin M.W. Tsui;Eric C. Frey;G.Allan Johnson

  • MRI of the lungs using hyperpolarized noble gases.

    Harald E. Möller;X. Josette Chen;Brian Saam;Klaus D. Hagspiel

  • Rapid calculation of T1 using variable flip angle gradient refocused imaging.

    Evan K. Fram;Robert J. Herfkens;G.Allan Johnson;Gary H. Glover

  • Waxholm Space atlas of the Sprague Dawley rat brain

    Eszter A. Papp;Trygve B. Leergaard;Evan Calabrese;G. Allan Johnson

  • MRI of brain iron

    B. Drayer;P. Burger;R. Darwin;S. Riederer

  • Human lung air spaces: potential for MR imaging with hyperpolarized He-3.

    J R MacFall;H C Charles;R D Black;H Middleton

  • Parkinson plus syndrome: diagnosis using high field MR imaging of brain iron.

    B P Drayer;W Olanow;P Burger;G A Johnson

  • Detection of neuritic plaques in Alzheimer's disease by magnetic resonance microscopy.

    Benveniste H;Einstein G;Kim Kr;Hulette C

  • Morphologic phenotyping with MR microscopy: the visible mouse.

    G. Allan Johnson;Gary P. Cofer;Sally L. Gewalt;Laurence W. Hedlund

  • Waxholm space: an image-based reference for coordinating mouse brain research.

    G. Allan Johnson;Alexandra Badea;Jeffrey Brandenburg;Gary P. Cofer

  • Imaging alveolar-capillary gas transfer using hyperpolarized 129Xe MRI

    Bastiaan Driehuys;Gary P. Cofer;Jim Pollaro;Julie Boslego Mackel

  • A liposomal nanoscale contrast agent for preclinical CT in mice.

    Srinivasan Mukundan;Ketan B. Ghaghada;Cristian T. Badea;Chen-Yu Kao

  • High-field (9.4 T) MRI of brain dysmyelination by quantitative mapping of magnetic susceptibility.

    Chunlei Liu;Wei Li;G. Allan Johnson;Bing Wu

  • Sparseness prior based iterative image reconstruction for retrospectively gated cardiac micro-CT

    Jiayu Song;Qing H. Liu;G. Allan Johnson;Cristian T. Badea

  • Magnetic Resonance Imaging of Brain Iron

    Burton Drayer;Peter Burger;Robert Darwin;Stephen Riederer

  • Spatially resolved measurements of hyperpolarized gas properties in the lung in vivo. Part I: diffusion coefficient.

    X. J. Chen;Harald E. Möller;Mark S. Chawla;Gary P. Cofer

  • A Diffusion MRI Tractography Connectome of the Mouse Brain and Comparison with Neuronal Tracer Data

    Evan Calabrese;Alexandra Badea;Gary Cofer;Yi Qi

  • 4-D micro-CT of the mouse heart.

    Cristian T. Badea;Boma Fubara;Laurence W. Hedlund;G. Allan Johnson

  • Detection of emphysema in rat lungs by using magnetic resonance measurements of 3He diffusion.

    X. Josette Chen;Laurence W. Hedlund;Harald E. Möller;Mark S. Chawla

  • Magnetic resonance microscopy defines ethanol-induced brain abnormalities in prenatal mice: effects of acute insult on gestational day 8.

    Scott E. Parnell;Shonagh K. O’Leary-Moore;Elizabeth A. Godin;Deborah B. Dehart

Frequent Co-Authors

Chunlei Liu
Chunlei Liu University of California, Berkeley
James R. MacFall
James R. MacFall Duke University
Charles Watson
Charles Watson Curtin University
Martin Styner
Martin Styner University of North Carolina at Chapel Hill
Robert J. Herfkens
Robert J. Herfkens Stanford University
Howard A. Rockman
Howard A. Rockman Duke University
Federico De Martino
Federico De Martino Maastricht University
Robert W. Williams
Robert W. Williams University of Tennessee Health Science Center
Brian B. Avants
Brian B. Avants University of Virginia

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