World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
88
Citations
25554
World Ranking
13264
National Ranking
6758

Richard C. Semelka 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 Richard C. Semelka 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: 536 publications — 64th percentile

64% of scientists in this discipline score the same or lower.

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

Richard C. Semelka 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 Richard C. Semelka 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: 88 D-Index — 36th percentile

36% of scientists in this discipline score the same or lower.

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

Overview

Richard C. Semelka is affiliated with the University of North Carolina at Chapel Hill in the United States. Their research is primarily situated in the field of Medicine, with a strong emphasis on Radiology, Nuclear Medicine and Imaging. Additional subfields include Materials Chemistry, Surgery, Epidemiology, and Hepatology.

The scientist's work frequently appears in various academic venues, including UNC Libraries, Gastroenterology & Hepatology Open Access, Investigative Radiology, Radiologia Brasileira, and Archives of Toxicology.

Their research topics cover a range of specialized areas such as:

  • Lanthanide and Transition Metal Complexes
  • Advanced MRI Techniques and Applications
  • Medical Imaging Techniques and Applications
  • Liver Disease Diagnosis and Treatment
  • MRI in cancer diagnosis
  • Hepatocellular Carcinoma Treatment and Prognosis
  • IgG4-Related and Inflammatory Diseases

Some of the recent papers authored or co-authored by Richard C. Semelka include:

  • "Gadolinium Deposition Disease," 2023, Investigative Radiology
  • "Physicians with self-diagnosed gadolinium deposition disease: a case series," 2021, Radiologia Brasileira

Richard C. Semelka has collaborated with several frequent co-authors, most notably Miguel Ramalho and Joana Ramalho, as well as Mamdoh AlObaidy, Holden T. Maecker, and Yael Rosenberg-Hasson.

Best Publications

  • Normal left ventricular dimensions and function: Interstudy reproducibility of measurements with cine MR imaging

    Richard C. Semelka;Ernesto Tomei;Stefan Wagner;John Mayo;John Mayo

  • MRI: Basic Principles and Applications

    Mark A. Brown;Richard C. Semelka

  • Gadolinium-Based Contrast Agent Accumulation and Toxicity: An Update

    J. Ramalho;R. C. Semelka;M. Ramalho;R. H. Nunes

  • Contrast agents for MR imaging of the liver

    Richard C. Semelka;Thomas K. G. Helmberger

  • Growth of uterine leiomyomata among premenopausal black and white women

    Shyamal D. Peddada;Shannon K. Laughlin;Kelly Miner;Kelly Miner;Jean Philippe Guyon

  • Interstudy reproducibility of dimensional and functional measurements between cine magnetic resonance studies in the morphologically abnormal left ventricle.

    Richard C. Semelka;Ernesto Tomei;Stefan Wagner;John Mayo

  • Hepatic hemangiomas: a multi-institutional study of appearance on T2-weighted and serial gadolinium-enhanced gradient-echo MR images.

    Richard C Semelka;E. D. Brown;S. M. Ascher;R. H. Patt

  • Focal liver lesions: Comparison of dual‐phase CT and multisequence multiplanar MR imaging including dynamic gadolinium enhancement

    Richard C. Semelka;Diego R. Martin;Cem Balci;Cem Balci;Trang Lance

  • Right and left ventricular stroke volume measurements with velocity-encoded cine MR imaging: In vitro and in vivo validation

    C Kondo;G R Caputo;R Semelka;E Foster

  • Adenomyosis: prospective comparison of MR imaging and transvaginal sonography.

    Susan M. Ascher;Lori L. Arnold;Richard H. Patt;John J. Schruefer

  • MRI of Acute Abdominal and Pelvic Pain in Pregnant Patients

    Katherine R. Birchard;Michele A. Brown;Michele A. Brown;W. Brian Hyslop;Zeynep Firat

  • Imaging strategies to reduce the risk of radiation in CT studies, including selective substitution with MRI

    Richard C. Semelka;Richard C. Semelka;Diane M. Armao;Diane M. Armao;Jorge Elias;Jorge Elias;Jorge Elias;Walter Huda;Walter Huda

  • MR imaging of the pancreas.

    Richard C. Semelka;Susan M. Ascher

  • Bladder tumor staging : comparison of contrast-enhanced CT, T1- and T2-weighted MR imaging, dynamic gadolinium-enhanced imaging, and late gadolinium-enhanced imaging

    B. Kim;Richard C Semelka;S. M. Ascher;D. B. Chalpin

  • HASTE MR imaging: Description of technique and preliminary results in the abdomen

    Richard C. Semelka;Nikolaos L. Kelekis;David Thomasson;Mark A. Brown

  • High Signal Intensity in Globus Pallidus and Dentate Nucleus on Unenhanced T1-weighted MR Images: Evaluation of Two Linear Gadolinium-based Contrast Agents.

    Joana Ramalho;Mauricio Castillo;Mamdoh AlObaidy;Mamdoh AlObaidy;Renato H Nunes

  • Spectrum of MRI appearances of untreated metastases of the liver.

    Ioana Maria Danet;Richard C Semelka;Polytimi Leonardou;Larissa Braga

  • Neuroendocrine tumors of the pancreas: Spectrum of appearances on MRI

    Richard C. Semelka;Carolina M. Custodio;N. Cem Balci;John T. Woosley

  • Comparison of magnetic resonance imaging and endoscopy in distinguishing the type and severity of inflammatory Bowel disease

    J Shoenut;Richard Semelka;Cynthia Magro;Richard Silverman

  • Fetal fast MR imaging: reproducibility, technical quality, and conspicuity of anatomy.

    Deborah Levine;Patrick D. Barnes;Scott Sher;Richard C. Semelka

Frequent Co-Authors

Donald G. Mitchell
Donald G. Mitchell Johns Hopkins University Applied Physics Laboratory
Eugenio Picano
Eugenio Picano National Research Council (CNR)
Mauricio Castillo
Mauricio Castillo University of North Carolina at Chapel Hill
Hedvig Hricak
Hedvig Hricak Memorial Sloan Kettering Cancer Center
Frank H. Miller
Frank H. Miller Northwestern University
Daniel L. Rubin
Daniel L. Rubin Stanford University
David A. Bluemke
David A. Bluemke University of Wisconsin–Madison
Charles B. Higgins
Charles B. Higgins University of California, San Francisco
Sanjay Saini
Sanjay Saini Harvard University
Lorrin M. Koran
Lorrin M. Koran Stanford University

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

For students interested in the broader field of healthcare, there are a variety of online degree options and pathways to consider beyond a traditional M.D. program. Nursing, for example, offers numerous accessible and flexible options for those looking to enter or advance in the medical profession.

Registered Nurses can accelerate their careers by enrolling in one of the cheapest rn to bsn online programs, which are an affordable way to earn a Bachelor of Science in Nursing. For those aiming for advanced roles, an online nursing doctorate can prepare you for leadership positions, research, or teaching in higher education.

Career-changers without a nursing background can transition quickly by exploring msn direct entry programs online. These programs allow non-nurses to earn a master’s degree and launch a new career in nursing in a matter of years.

If admissions competitiveness is a concern, you might consider the easiest nursing schools to get into, which often feature more flexible entry requirements. With these pathways, a rewarding healthcare career is more accessible than ever.

Best Scientists Citing Richard C. Semelka

Trending Scientists

Recently Published Articles