Ryoji Miyahara

3.8k total citations
197 papers, 2.5k citations indexed

About

Ryoji Miyahara is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, Ryoji Miyahara has authored 197 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 114 papers in Surgery, 67 papers in Pulmonary and Respiratory Medicine and 61 papers in Oncology. Recurrent topics in Ryoji Miyahara's work include Gastric Cancer Management and Outcomes (48 papers), Pancreatic and Hepatic Oncology Research (41 papers) and Gastrointestinal disorders and treatments (35 papers). Ryoji Miyahara is often cited by papers focused on Gastric Cancer Management and Outcomes (48 papers), Pancreatic and Hepatic Oncology Research (41 papers) and Gastrointestinal disorders and treatments (35 papers). Ryoji Miyahara collaborates with scholars based in Japan, United States and United Kingdom. Ryoji Miyahara's co-authors include Hidemi Goto, Yoshiki Hirooka, Masanao Nakamura, Hiroki Kawashima, Naoki Ohmiya, Eizaburo Ohno, Osamu Watanabe, Kohei Funasaka, Akihiro Ito and Takafumi Ando and has published in prestigious journals such as SHILAP Revista de lepidopterología, Gastroenterology and Scientific Reports.

In The Last Decade

Ryoji Miyahara

185 papers receiving 2.5k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Ryoji Miyahara Japan 28 1.5k 911 834 613 459 197 2.5k
Eizaburo Ohno Japan 28 2.0k 1.3× 1.9k 2.1× 1.0k 1.2× 418 0.7× 716 1.6× 230 3.2k
Masanao Nakamura Japan 30 2.5k 1.7× 1.2k 1.4× 1.1k 1.3× 1.4k 2.4× 702 1.5× 333 4.0k
Hirohisa Machida Japan 24 1.8k 1.2× 711 0.8× 1.4k 1.7× 647 1.1× 194 0.4× 73 2.8k
Jeong Youp Park South Korea 34 1.7k 1.1× 1.9k 2.0× 1.4k 1.6× 364 0.6× 525 1.1× 181 3.9k
Kazuo Ohtsuka Japan 35 1.1k 0.7× 1.3k 1.4× 641 0.8× 831 1.4× 549 1.2× 142 4.4k
Laura Villani Italy 33 1.5k 1.0× 1.1k 1.2× 635 0.8× 538 0.9× 494 1.1× 105 3.9k
Jörg Albert Germany 24 1.4k 1.0× 499 0.5× 916 1.1× 571 0.9× 383 0.8× 129 2.3k
Takuro Saito Japan 25 816 0.5× 970 1.1× 637 0.8× 153 0.2× 193 0.4× 219 2.6k
Naoki Hosoe Japan 24 897 0.6× 427 0.5× 594 0.7× 873 1.4× 264 0.6× 121 1.9k
Yiqun Zhang China 41 2.3k 1.5× 758 0.8× 1.9k 2.3× 2.0k 3.3× 247 0.5× 172 4.7k

Countries citing papers authored by Ryoji Miyahara

Since Specialization
Citations

This map shows the geographic impact of Ryoji Miyahara's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ryoji Miyahara with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ryoji Miyahara more than expected).

Fields of papers citing papers by Ryoji Miyahara

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ryoji Miyahara. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ryoji Miyahara. The network helps show where Ryoji Miyahara may publish in the future.

Co-authorship network of co-authors of Ryoji Miyahara

This figure shows the co-authorship network connecting the top 25 collaborators of Ryoji Miyahara. A scholar is included among the top collaborators of Ryoji Miyahara based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ryoji Miyahara. Ryoji Miyahara is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Ohno, Eizaburo, Teiji Kuzuya, Kohei Funasaka, et al.. (2024). Efficacy of 1-Kestose Supplementation in Patients with Pancreatic Ductal Adenocarcinoma: A Randomized Controlled Pilot Study. Nutrients. 16(17). 2889–2889. 4 indexed citations
2.
3.
Iizuka, Katsumi, Takuma Ishihara, Masayoshi Sarai, et al.. (2022). Nutritional Assessment of Hospital Meals by Food-Recording Applications. Nutrients. 14(18). 3754–3754. 4 indexed citations
4.
Funasaka, Kohei, Kazuki Nishida, Kazuhiro Furukawa, et al.. (2022). Scoring system for predicting the prognosis of elderly gastric cancer patients after endoscopic submucosal dissection. Digestive Endoscopy. 35(1). 67–76. 2 indexed citations
5.
Yamamoto, Kenta, Takashi Honda, Takanori Ito, et al.. (2020). The relationship between oral‐origin bacteria in the fecal microbiome and albumin–bilirubin grade in patients with hepatitis C. Journal of Gastroenterology and Hepatology. 36(3). 790–799. 6 indexed citations
6.
Miyahara, Ryoji, Kohei Funasaka, Kazuhiro Furukawa, et al.. (2020). Comparison of High-Resolution Manometry in Patients Complaining of Dysphagia among Patients with or without Diabetes Mellitus. Digestion. 102(4). 554–562. 9 indexed citations
7.
Kawashima, Hiroki, Eizaburo Ohno, Takuya Ishikawa, et al.. (2020). What is the role of measuring shear wave dispersion using shear wave elastography in pancreatic parenchyma?. Journal of Medical Ultrasonics. 47(4). 575–581. 11 indexed citations
8.
Nakamura, Masanao, Takeshi Yamamura, Keiko Maeda, et al.. (2019). Clinical Factors Associated with Missing Colorectal Polyp on Colon Capsule Endoscopy. Digestion. 101(3). 316–322. 8 indexed citations
9.
Nakamura, Masanao, Takeshi Yamamura, Keiko Maeda, et al.. (2019). Lewis Score on Capsule Endoscopy as a Predictor of the Risk for Crohn’s Disease-Related Emergency Hospitalization and Clinical Relapse in Patients with Small Bowel Crohn’s Disease. Gastroenterology Research and Practice. 2019. 1–8. 8 indexed citations
10.
Ishikawa, Takuya, Hiroki Kawashima, Eizaburo Ohno, et al.. (2019). Clinical Impact of EUS-Guided Fine Needle Biopsy Using a Novel Franseen Needle for Histological Assessment of Pancreatic Diseases. Canadian Journal of Gastroenterology and Hepatology. 2019. 1–8. 35 indexed citations
11.
Hirooka, Yoshiki, Masanao Nakamura, Osamu Watanabe, et al.. (2018). Nomogram-based prediction of rebleeding in small bowel bleeding patients: the ‘PRSBB’ score. Scientific Reports. 8(1). 6378–6378. 10 indexed citations
12.
Nakamura, Masanao, Takeshi Yamamura, Keiko Maeda, et al.. (2018). Validity of Capsule Endoscopy in Monitoring Therapeutic Interventions in Patients with Crohn’s Disease. Journal of Clinical Medicine. 7(10). 311–311. 12 indexed citations
13.
Ishikawa, Eri, Tsutomu Tanaka, Kazuyuki Shimada, et al.. (2018). A prognostic model, including the EBV status of tumor cells, for primary gastric diffuse large B‐cell lymphoma in the rituximab era. Cancer Medicine. 7(7). 3510–3520. 26 indexed citations
14.
Nakamura, Masanao, Osamu Watanabe, Takeshi Yamamura, et al.. (2017). Endoscopic Characteristics, Risk Grade, and Prognostic Prediction in Gastrointestinal Stromal Tumors of the Small Bowel. Digestion. 95(2). 122–131. 15 indexed citations
15.
Miyahara, Ryoji, Yoshiki Hirooka, Kohei Funasaka, et al.. (2014). Simplified magnetic anchor-guided endoscopic submucosal dissection in dogs (with videos). Gastrointestinal Endoscopy. 80(4). 712–716. 20 indexed citations
16.
Sugiyama, Akihiko & Ryoji Miyahara. (2014). A lowdistortion noise canceller with a novel stepsize control and conditional cancellation. 1262–1266. 14 indexed citations
17.
Sugiyama, Akihiko, Ryoji Miyahara, & Kwang‐Su Park. (2013). A-4-6 IMPACT-NOISE SUPPRESSION WITH PHASE-BASED DETECTION. European Signal Processing Conference. 2013. 1–5. 1 indexed citations
18.
Uedo, Noriya, Mitsuhiro Fujishiro, Kenichi Goda, et al.. (2011). ROLE OF NARROW BAND IMAGING FOR DIAGNOSIS OF EARLY‐STAGE ESOPHAGOGASTRIC CANCER: CURRENT CONSENSUS OF EXPERIENCED ENDOSCOPISTS IN ASIA–PACIFIC REGION. Digestive Endoscopy. 23(s1). 58–71. 77 indexed citations
19.
Nakamura, Masanao, Naoki Ohmiya, Ryoji Miyahara, et al.. (2009). Capsule endoscopy in patients with obscure gastrointestinal bleeding. Acta gastro-enterologica belgica. 100(11). 2866–2876. 1 indexed citations
20.
Nakamura, Masanao, Yasumasa Niwa, Naoki Ohmiya, et al.. (2007). Small bowel tuberculosis diagnosed by the combination of video capsule endoscopy and double balloon enteroscopy. European Journal of Gastroenterology & Hepatology. 19(7). 595–598. 8 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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