World's Best Scientists 2026 revealed!
Norio Hayashi

Norio Hayashi

D-Index & Metrics

Medicine

D-Index
101
Citations
30344
World Ranking
8073
National Ranking
207

Norio Hayashi 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 Norio Hayashi 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: 696 publications — 81st percentile

81% of scientists in this discipline score the same or lower.

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

Norio Hayashi 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 Norio Hayashi 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: 101 D-Index — 61st percentile

61% of scientists in this discipline score the same or lower.

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

Overview

Norio Hayashi is affiliated with Osaka University in Japan. Their research primarily focuses on the field of Medicine, with significant contributions to Radiology, Nuclear Medicine and Imaging, Pulmonary and Respiratory Medicine, Computer Vision and Pattern Recognition, Biomedical Engineering, and Neurology.

The scientist's work covers various main topics, including:

  • Advanced MRI Techniques and Applications
  • Radiomics and Machine Learning in Medical Imaging
  • Medical Image Segmentation Techniques
  • Advanced Neuroimaging Techniques and Applications
  • Medical Imaging Techniques and Applications
  • AI in cancer detection
  • MRI in cancer diagnosis

Recent research publications by Norio Hayashi include:

  • Analyzing the relationship between specific brain structural changes and the diffusion tensor image analysis along the perivascular space index in idiopathic normal pressure hydrocephalus (2024), Journal of Neurology
  • Quality control system for mammographic breast positioning using deep learning (2023), Scientific Reports
  • MRI safety for leave-on powdered hair thickeners under 1.5-T and 3.0-T MRI: measurement of deflection force, MRI artifact, and evaluation of preexamination screening (2023), Physical and Engineering Sciences in Medicine
  • Simultaneous brain structure segmentation in magnetic resonance images using deep convolutional neural networks (2021), Radiological Physics and Technology
  • JNJ-4178 (adafosbuvir, odalasvir, and simeprevir) in Japanese patients with chronic hepatitis C virus genotype 1 or 2 infection with or without compensated cirrhosis: the Phase IIa OMEGA-3 study (2020), Journal of Gastroenterology

Frequent collaborators in their research include:

  • Haruyuki Watanabe
  • Toshihiro Ogura
  • Ryuya Okawa
  • Tetsuhiko Takahashi
  • Masayuki Shimosegawa

Norio Hayashi has published extensively in several academic journals and venues. Among the most frequent publication venues are:

  • Japanese Journal of Radiological Technology
  • Applied Magnetic Resonance
  • Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition/Proceedings of the International Society for Magnetic Resonance in Medicine, Scientific Meeting and Exhibition
  • Scientific Reports
  • Radiological Physics and Technology

Best Publications

  • Phase III study of sorafenib after transarterial chemoembolisation in Japanese and Korean patients with unresectable hepatocellular carcinoma.

    Masatoshi Kudo;Kazuho Imanaka;Nobuyuki Chida;Kohei Nakachi

  • Risk factors for hepatocellular carcinoma and its incidence after interferon treatment in patients with chronic hepatitis C

    Akinori Kasahara;Norio Hayashi;Kiyoshi Mochizuki;Masahide Takayanagi

  • Quantitative analysis of hepatitis C virus RNA in serum during interferon alfa therapy.

    Hideki Hagiwara;Norio Hayashi;Eiji Mita;Tetsuo Takehara

  • Immunohistochemical detection of Fas antigen in liver tissue of patients with chronic hepatitis C

    Naoki Hiramatsu;Norio Hayashi;Kazuhiro Katayama;Kiyoshi Mochizuki

  • Activation of mitogen‐activated protein kinases/extracellular signal‐regulated kinases in human hepatocellular carcinoma

    Yoshiki Ito;Yutaka Sasaki;Masayoshi Horimoto;Shigeo Wada

  • Impaired Allostimulatory Capacity of Peripheral Blood Dendritic Cells Recovered from Hepatitis C Virus-Infected Individuals

    Tatsuya Kanto;Norio Hayashi;Tetsuo Takehara;Tomohide Tatsumi

  • The let-7 family of microRNAs inhibits Bcl-xL expression and potentiates sorafenib-induced apoptosis in human hepatocellular carcinoma

    Satoshi Shimizu;Tetsuo Takehara;Hayato Hikita;Takahiro Kodama

  • Telaprevir with peginterferon and ribavirin for treatment-naive patients chronically infected with HCV of genotype 1 in Japan

    Hiromitsu Kumada;Joji Toyota;Takeshi Okanoue;Kazuaki Chayama

  • Critical Role of MHC Class I-Related Chain A and B Expression on IFN-α-Stimulated Dendritic Cells in NK Cell Activation: Impairment in Chronic Hepatitis C Virus Infection

    Masahisa Jinushi;Tetsuo Takehara;Tatsuya Kanto;Tomohide Tatsumi

  • Gd-EOB-DTPA-enhanced magnetic resonance images of hepatocellular carcinoma: correlation with histological grading and portal blood flow

    Sachiyo Kogita;Yasuharu Imai;Masahiro Okada;Tonsok Kim

  • Expression and role of MICA and MICB in human hepatocellular carcinomas and their regulation by retinoic acid.

    Masahisa Jinushi;Tetsuo Takehara;Tomohide Tatsumi;Tatsuya Kanto

  • Negative Regulation of NK Cell Activities by Inhibitory Receptor CD94/NKG2A Leads to Altered NK Cell-Induced Modulation of Dendritic Cell Functions in Chronic Hepatitis C Virus Infection

    Masahisa Jinushi;Tetsuo Takehara;Tomohide Tatsumi;Tatsuya Kanto

  • Expression of vascular permeability factor/vascular endothelial growth factor in human hepatocellular carcinoma

    Kunio Suzuki;Norio Hayashi;Yasuhide Miyamoto;Masato Yamamoto

  • Inhibition of autophagy potentiates the antitumor effect of the multikinase inhibitor sorafenib in hepatocellular carcinoma.

    Satoshi Shimizu;Tetsuo Takehara;Hayato Hikita;Takahiro Kodama

  • Impairment of natural killer cell and dendritic cell functions by the soluble form of MHC class I-related chain A in advanced human hepatocellular carcinomas.

    Masahisa Jinushi;Tetsuo Takehara;Tomohide Tatsumi;Naoki Hiramatsu

  • Hepatocyte-specific disruption of Bcl-xL leads to continuous hepatocyte apoptosis and liver fibrotic responses

    Tetsuo Takehara;Tomohide Tatsumi;Takahiro Suzuki;Edmund B. Rucker

  • Detection of hepatitis C virus RNA in serum of patients with chronic hepatitis C treated with interferon-α

    Hideki Hagiwara;Norio Hayashi;Eiji Mita;Keiji Ueda

  • Reduced Numbers and Impaired Ability of Myeloid and Plasmacytoid Dendritic Cells to Polarize T Helper Cells in Chronic Hepatitis C Virus Infection

    Tatsuya Kanto;Michiyo Inoue;Hideki Miyatake;Aki Sato

  • Role of Fas Ligand in Apoptosis Induced by Hepatitis C Virus Infection

    E. Mita;N. Hayashi;S. Iio;T. Takehara

  • Serum hepatitis C virus RNA quantity and histological features of hepatitis C virus carriers with persistently normal ALT levels.

    Masafumi Naito;Norio Hayashi;Hideki Hagiwara;Naoki Hiramatsu

Frequent Co-Authors

Tetsuo Takehara
Tetsuo Takehara Osaka University
Takenobu Kamada
Takenobu Kamada Osaka University
Tatsuya Kanto
Tatsuya Kanto Osaka University
Masatsugu Hori
Masatsugu Hori Osaka University
Eiji Miyoshi
Eiji Miyoshi Osaka University
Hiromitsu Kumada
Hiromitsu Kumada Fukuoka University
Naoyuki Taniguchi
Naoyuki Taniguchi Osaka University
Kendo Kiyosawa
Kendo Kiyosawa Shinshu University
Masao Omata
Masao Omata University of Tokyo
Namiki Izumi
Namiki Izumi Musashino Red Cross Hospital

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