World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
103
Citations
39331
World Ranking
7361
National Ranking
179

Takao Itoi 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 Takao Itoi 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: 950 publications — 93rd percentile

93% of scientists in this discipline score the same or lower.

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

Takao Itoi 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 Takao Itoi 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: 103 D-Index — 65th percentile

65% of scientists in this discipline score the same or lower.

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

Overview

Takao Itoi is affiliated with Tokyo Medical University in Japan and has an extensive publication record primarily in the field of Medicine. Their research spans various subfields including Surgery, Pulmonary and Respiratory Medicine, Oncology, Gastroenterology, and Epidemiology.

The scientist's research topics cover a wide range within medical science, focusing notably on pancreatic and hepatic oncology research, gallbladder and bile duct disorders, esophageal and gastrointestinal pathology, pediatric hepatobiliary diseases and treatments, gastric cancer management and outcomes, pancreatitis pathology and treatment, and gastrointestinal disorders and treatments.

Frequent co-authors in their work include:

  • Shuntaro Mukai
  • Takayoshi Tsuchiya
  • Ryosuke Tonozuka
  • Masakatsu Fukuzawa
  • Kenjiro Yamamoto

Their publications have appeared repeatedly in several specialized medical journals. The most common venues for Takao Itoi's work are:

  • Digestive Endoscopy
  • Journal of Hepato-Biliary-Pancreatic Sciences
  • Endoscopy
  • Gastrointestinal Endoscopy
  • DEN Open

Selected recent papers illustrating the range and focus of their research include:

  • "Autophagy and Autophagy-Related Diseases: A Review," 2020, published in International Journal of Molecular Sciences
  • "Endosonography-guided gallbladder drainage versus percutaneous cholecystostomy in very high-risk surgical patients with acute cholecystitis: an international randomised multicentre controlled superiority trial (DRAC 1)," 2020, published in Gut
  • "Metagenomic Identification of Microbial Signatures Predicting Pancreatic Cancer From a Multinational Study," 2022, published in Gastroenterology
  • "The Role of Multiparametric US of the Liver for the Evaluation of Nonalcoholic Steatohepatitis," 2020, published in Radiology
  • "Endoscopic Ultrasound-guided Fine-needle Biopsy With or Without Rapid On-site Evaluation for Diagnosis of Solid Pancreatic Lesions: A Randomized Controlled Non-Inferiority Trial," 2021, published in Gastroenterology

Best Publications

  • Tokyo Guidelines 2018: diagnostic criteria and severity grading of acute cholecystitis (with videos).

    Masamichi Yokoe;Jiro Hata;Tadahiro Takada;Steven M. Strasberg

  • Tokyo Guidelines 2018: flowchart for the management of acute cholecystitis.

    Kohji Okamoto;Kenji Suzuki;Tadahiro Takada;Steven M. Strasberg

  • Clinical outcome of endoscopic submucosal dissection versus endoscopic mucosal resection of large colorectal tumors as determined by curative resection

    Yutaka Saito;Masakatsu Fukuzawa;Takahisa Matsuda;Shusei Fukunaga

  • Clinical evaluation of a novel lumen-apposing metal stent for endosonography-guided pancreatic pseudocyst and gallbladder drainage (with videos).

    Takao Itoi;Kenneth F. Binmoeller;Janak Shah;Atsushi Sofuni

  • Human Pancreatic Tumor Organoids Reveal Loss of Stem Cell Niche Factor Dependence during Disease Progression

    Takashi Seino;Shintaro Kawasaki;Mariko Shimokawa;Hiroki Tamagawa

  • TG13 diagnostic criteria and severity grading of acute cholecystitis (with videos)

    Masamichi Yokoe;Tadahiro Takada;Steven M. Strasberg;Joseph S. Solomkin

  • Japanese guidelines for the management of acute pancreatitis: Japanese Guidelines 2015.

    Masamichi Yokoe;Tadahiro Takada;Toshihiko Mayumi;Masahiro Yoshida

  • International consensus guidelines for endoscopic papillary large-balloon dilation

    Tae Hyeon Kim;Jin Hong Kim;Dong Wan Seo;Dong Ki Lee

  • TG13: Updated Tokyo Guidelines for the management of acute cholangitis and cholecystitis

    Tadahiro Takada;Steven M. Strasberg;Joseph S. Solomkin;Henry A. Pitt

  • Tokyo Guidelines 2018: antimicrobial therapy for acute cholangitis and cholecystitis.

    Harumi Gomi;Joseph S. Solomkin;David Schlossberg;Kohji Okamoto

  • TG13 guidelines for diagnosis and severity grading of acute cholangitis (with videos)

    Seiki Kiriyama;Tadahiro Takada;Steven M. Strasberg;Joseph S. Solomkin

  • TG13 surgical management of acute cholecystitis.

    Yuichi Yamashita;Tadahiro Takada;Steven M. Strasberg;Henry A. Pitt

  • Tokyo Guidelines 2018: initial management of acute biliary infection and flowchart for acute cholangitis

    Fumihiko Miura;Kohji Okamoto;Tadahiro Takada;Steven M. Strasberg

  • TG13 FLOWCHART FOR THE MANAGEMENT OF ACUTE CHOLANGITIS AND CHOLECYSTITIS

    Fumihiko Miura;Tadahiro Takada;Steven M. Strasberg;Joseph S. Solomkin

  • TOKYO criteria 2014 for transpapillary biliary stenting.

    Hiroyuki Isayama;Tsuyoshi Hamada;Ichiro Yasuda;Takao Itoi

  • New diagnostic criteria and severity assessment of acute cholecystitis in revised Tokyo guidelines

    Seiki Kiriyama;Tadahiro Takada;Steven M. Strasberg;Joseph S. Solomkin

  • Tokyo Guidelines 2018: management strategies for gallbladder drainage in patients with acute cholecystitis (with videos).

    Yasuhisa Mori;Takao Itoi;Todd H. Baron;Tadahiro Takada

  • Asia–Pacific consensus recommendations for endoscopic and interventional management of hilar cholangiocarcinoma

    Rungsun Rerknimitr;Phonthep Angsuwatcharakon;Thawee Ratanachu-ek;Christopher J L Khor

  • Endoscopic gallbladder drainage for management of acute cholecystitis

    Takao Itoi;Nayantara Coelho-Prabhu;Todd Huntley Baron

  • Multicenter retrospective study of endoscopic ultrasound-guided biliary drainage for malignant biliary obstruction in Japan.

    Kazumichi Kawakubo;Hiroyuki Isayama;Hironari Kato;Takao Itoi

Frequent Co-Authors

Takuji Gotoda
Takuji Gotoda Nihon University
Todd H. Baron
Todd H. Baron University of North Carolina at Chapel Hill
Terumi Kamisawa
Terumi Kamisawa Tokyo Metropolitan Komagome Hospital
Mouen A. Khashab
Mouen A. Khashab Johns Hopkins University
Steven M. Strasberg
Steven M. Strasberg Washington University in St. Louis
Tooru Shimosegawa
Tooru Shimosegawa Tohoku University
Kazuichi Okazaki
Kazuichi Okazaki Kansai Medical University
Dong Wan Seo
Dong Wan Seo Asan Medical Center
Atsushi Kanno
Atsushi Kanno National Institute of Information and Communications Technology
James Y.W. Lau
James Y.W. Lau Chinese University of Hong Kong

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