Shinji Okaniwa

622 total citations
35 papers, 355 citations indexed

About

Shinji Okaniwa is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, Shinji Okaniwa has authored 35 papers receiving a total of 355 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Surgery, 14 papers in Pulmonary and Respiratory Medicine and 12 papers in Oncology. Recurrent topics in Shinji Okaniwa's work include Cholangiocarcinoma and Gallbladder Cancer Studies (10 papers), Gallbladder and Bile Duct Disorders (10 papers) and Pediatric Hepatobiliary Diseases and Treatments (9 papers). Shinji Okaniwa is often cited by papers focused on Cholangiocarcinoma and Gallbladder Cancer Studies (10 papers), Gallbladder and Bile Duct Disorders (10 papers) and Pediatric Hepatobiliary Diseases and Treatments (9 papers). Shinji Okaniwa collaborates with scholars based in Japan and United States. Shinji Okaniwa's co-authors include Masanori Shimodaira, Kensuke Kubota, Hiroshi Kawakami, Tsuyoshi Mukai, Toshiharu Ueki, Masataka Kikuyama, Keiji Hanada, Atsushi Sofuni, Hiromu Kutsumi and Hiroyuki Maguchi and has published in prestigious journals such as SHILAP Revista de lepidopterología, The American Journal of Surgical Pathology and Clinical Gastroenterology and Hepatology.

In The Last Decade

Shinji Okaniwa

28 papers receiving 338 citations

Peers

Shinji Okaniwa

SURGE

PRM

ONCOL

EPIDE

EDM

Takashi Ibuka Japan

Ryushi Shudo Japan

Dimitrios Korkolis Greece

Keitaro Kakinoki Japan

Zhiping Yan China

Ryo Kameda Japan

Óscar Vidal Spain

Yehia T. Kishk Egypt

Ken‐ichi Tarumi Japan

M Nardi Italy

Takashi Ibuka Japan

Shinji Okaniwa

230 ×1.0

SURGE

206 ×1.0

PRM

129 ×0.7

ONCOL

62 ×1.7

EPIDE

21 ×0.8

EDM

Citations per year, relative to Shinji Okaniwa Shinji Okaniwa (= 1×) peers Takashi Ibuka

Countries citing papers authored by Shinji Okaniwa

Since Specialization

Citations

This map shows the geographic impact of Shinji Okaniwa'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 Shinji Okaniwa with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Shinji Okaniwa more than expected).

Fields of papers citing papers by Shinji Okaniwa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Shinji Okaniwa. 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 Shinji Okaniwa. The network helps show where Shinji Okaniwa may publish in the future.

Co-authorship network of co-authors of Shinji Okaniwa

This figure shows the co-authorship network connecting the top 25 collaborators of Shinji Okaniwa. A scholar is included among the top collaborators of Shinji Okaniwa 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 Shinji Okaniwa. Shinji Okaniwa is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Okaniwa, Shinji. (2024). Reply to Fujimoto, T. Comment on “Okaniwa, S. How Can We Manage Gallbladder Lesions by Transabdominal Ultrasound? Diagnostics 2021, 11, 784”. Diagnostics. 14(2). 167–167. 2 indexed citations

Okaniwa, Shinji. (2024). Advanced ultrasound diagnosis of extrahepatic bile duct lesions. Journal of Medical Ultrasonics. 52(1). 69–83.

Hirai, Toshiko, Masahiro Ogawa, Shinji Okaniwa, & Shigehiko Nishimura. (2022). Revision of the Manual for Abdominal Ultrasound in Cancer Screening and Health Checkups (2021). Choonpa Igaku. 49(2). 105–118.

Okaniwa, Shinji. (2021). Role of transabdominal ultrasound in the diagnosis of autoimmune pancreatitis. Journal of Medical Ultrasonics. 48(4). 525–536. 2 indexed citations

Okaniwa, Shinji. (2021). Everything you need to know about ultrasound for diagnosis of gallbladder diseases. Journal of Medical Ultrasonics. 48(2). 145–147. 6 indexed citations

Okaniwa, Shinji. (2019). Role of conventional ultrasonography in the diagnosis of gallbladder polypoid lesions. Journal of Medical Ultrasonics. 48(2). 149–157. 18 indexed citations

Okaniwa, Shinji & Kazuhiro Iwashita. (2018). How should we evaluate the pancreatobiliary system?-pitfalls and practical solutions-. Choonpa Igaku. 45(5). 471–480. 2 indexed citations

Shimodaira, Masanori, Shinji Okaniwa, & Tomohiro Nakayama. (2017). Reduced Serum Phosphorus Levels Were Associated with Metabolic Syndrome in Men But Not in Women: A Cross-Sectional Study among the Japanese Population. Annals of Nutrition and Metabolism. 71(3-4). 150–156. 13 indexed citations

Shimodaira, Masanori, Shinji Okaniwa, & Tomohiro Nakayama. (2017). Fasting Single-Spot Urine pH Is Associated with Metabolic Syndrome in the Japanese Population. Medical Principles and Practice. 26(5). 433–437. 7 indexed citations

10.

Okaniwa, Shinji, et al.. (2017). Macroscopic findings and ultrasound differential diagnosis of pancreatic cystic lesions. Choonpa Igaku. 44(3). 235–244. 1 indexed citations

11.

Shimodaira, Masanori, Shinji Okaniwa, & Tomohiro Nakayama. (2016). Investigation of the relationship between hemoglobin and serum iron levels and early-phase insulin secretion in non-diabetic subjects. Acta Diabetologica. 53(5). 783–789. 5 indexed citations

12.

Okaniwa, Shinji, et al.. (2014). Ultrasound cancer screening and differential diagnosis for pancreatic ductal cancer. Choonpa Igaku. 41(4). 545–551. 1 indexed citations

13.

Tanaka, Sachiko, Shinji Okaniwa, Takashi Kumada, Michiko Nakajima, & Toshiko Hirai. (2013). Outline of the guideline for abdominal ultrasound cancer screening. Choonpa Igaku. 40(6). 549–565. 3 indexed citations

14.

Okaniwa, Shinji, et al.. (2013). Ultrasound diagnosis of gallbladder: categorized criteria for ultrasound cancer screening. Choonpa Igaku. 40(2). 147–156. 1 indexed citations

15.

Sofuni, Atsushi, Hiroyuki Maguchi, Tsuyoshi Mukai, et al.. (2011). Endoscopic Pancreatic Duct Stents Reduce the Incidence of Post–Endoscopic Retrograde Cholangiopancreatography Pancreatitis in High-Risk Patients. Clinical Gastroenterology and Hepatology. 9(10). 851–858. 116 indexed citations

16.

Ito, Kei, Naotaka Fujita, Atsushi Kanno, et al.. (2011). Risk Factors for Post-ERCP Pancreatitis in High Risk Patients Who Have Undergone Prophylactic Pancreatic Duct Stenting: A Multicenter Retrospective Study. Internal Medicine. 50(24). 2927–2932. 37 indexed citations

17.

Okaniwa, Shinji. (2009). Basic ultrasound diagnosis of the gallbladder: differential diagnosis of gallbladder carcinomas. Choonpa Igaku. 36(1). 23–31.

18.

Tanaka, Naoki, Akira Horiuchi, Takahiro Yamaura, et al.. (2009). Efficacy and safety of addition of minor bloodletting (petit phlebotomy) in hepatitis C virus-infected patients receiving regular glycyrrhizin injections. Journal of Gastroenterology. 44(6). 577–582. 18 indexed citations

19.

Fujita, Naotaka, et al.. (1997). Superficial elevated-type early gallbladder carcinoma treated by laparoscopic cholecystectomy. Journal of Gastroenterology. 32(4). 566–569. 4 indexed citations

20.

Kimura, Kazuhiro, Naotaka Fujita, Shinji Okaniwa, et al.. (1996). [Diagnosis of superficial-type early carcinoma of the gallbladder by endoscopic ultrasonography--comparison with ultrasonography].. PubMed. 93(7). 462–9. 1 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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