Masaaki Ogata

727 total citations
27 papers, 524 citations indexed

About

Masaaki Ogata is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Epidemiology. According to data from OpenAlex, Masaaki Ogata has authored 27 papers receiving a total of 524 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Surgery, 5 papers in Pulmonary and Respiratory Medicine and 3 papers in Epidemiology. Recurrent topics in Masaaki Ogata's work include Intestinal and Peritoneal Adhesions (8 papers), Hernia repair and management (5 papers) and Gastrointestinal disorders and treatments (4 papers). Masaaki Ogata is often cited by papers focused on Intestinal and Peritoneal Adhesions (8 papers), Hernia repair and management (5 papers) and Gastrointestinal disorders and treatments (4 papers). Masaaki Ogata collaborates with scholars based in Japan, United States and United Kingdom. Masaaki Ogata's co-authors include James R. Mateer, Michael P. Kefer, Charles Aprahamian, D. H. Wittmann, Robert E. Condon, Ryo Hosotani, Hiroshi Aoyama, Shiro Imai, Tomoko Takai and Yoshihiko Shiro and has published in prestigious journals such as Annals of Surgery, British journal of surgery and Surgery Today.

In The Last Decade

Masaaki Ogata

20 papers receiving 480 citations

Peers

Masaaki Ogata

SURGE

CCICM

RNMI

PRM

Diego B. Núñez United States

J. Duncan Harviel United States

Stephen Alerhand United States

James M. Bardes United States

Cameron Hypes United States

Niv Sne Canada

Rodrigo Gopar‐Nieto Mexico

Egbert Huettemann Germany

Daniel Dankl Austria

Janusz Andres Poland

Diego B. Núñez United States

Masaaki Ogata

585 ×1.8

SURGE

120 ×0.6

CCICM

310 ×1.6

50 ×0.5

RNMI

191 ×2.3

PRM

Citations per year, relative to Masaaki Ogata Masaaki Ogata (= 1×) peers Diego B. Núñez

Countries citing papers authored by Masaaki Ogata

Since Specialization

Citations

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

Fields of papers citing papers by Masaaki Ogata

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masaaki Ogata

This figure shows the co-authorship network connecting the top 25 collaborators of Masaaki Ogata. A scholar is included among the top collaborators of Masaaki Ogata 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 Masaaki Ogata. Masaaki Ogata 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

Ogata, Masaaki, et al.. (2014). Sonographic diagnosis of intestinal anisakiasis presenting as small bowel obstruction. Journal of Clinical Ultrasound. 43(5). 283–287. 11 indexed citations

Takai, Tomoko, et al.. (2013). A Type 2 Diabetic Patient with Non-occlusive Mesenteric Ischemia Probably Induced by Diabetic Ketoacidosis due to Prednisolone Intake. 56(5). 298–304. 2 indexed citations

Nakamoto, Yoshihiko, et al.. (2009). A Case of Colonic Perforation at the Anastomotic Site associated with Bevacizumab. The Japanese Journal of Gastroenterological Surgery. 42(1). 84–88. 1 indexed citations

Ogata, Masaaki. (2009). Incarcerated obturator hernia: pitfalls in the application of ultrasound. Critical Ultrasound Journal. 1(2). 59–63. 5 indexed citations

Shiro, Yoshihiko, et al.. (2009). Diffusion-weighted Magnetic Resonance Imaging of a Severe Heat Stroke Patient Complicated with Severe Cerebellar Ataxia. Internal Medicine. 48(12). 1105–1108. 29 indexed citations

Mino, Koichi, et al.. (2008). Clinical characteristics of patients with psychotropic drug overdose admitted to the emergency department. Nihon Kyukyu Igakukai Zasshi Journal of Japanese Association for Acute Medicine. 19(9). 901–913. 8 indexed citations

Kikawa, Yuichiro, et al.. (2007). A Case of Pancreaticoduodenal Artery Aneurysm Ruptured into the Common Bile Duct. The Japanese Journal of Gastroenterological Surgery. 40(3). 307–312. 2 indexed citations

Kikawa, Yuichiro, Yoshihiko Nakamoto, Masashi Furukawa, et al.. (2007). A CASE OF SMALL BOWEL CANCER DIAGNOSED AND TREATED BY LAPAROSCOPIC SURGERY. Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 68(8). 1990–1993.

Furukawa, Masashi, Hirokuni Ikeda, Yuichiro Kikawa, et al.. (2007). A CASE OF LARGE BOWEL OBSTRUCTION CAUSED BY AN ASCENDING COLON CANCER IMPACTED WITH A COLONIC LIPOMA. Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 68(11). 2827–2830.

10.

Kikawa, Yuichiro, Yutaka Konishi, Yoshihiko Nakamoto, et al.. (2006). Angiosarcoma of the Breast – specific findings of MRI. Breast Cancer. 13(4). 369–373. 27 indexed citations

11.

Nakamoto, Yoshihiko, et al.. (2004). A Case of Spigelian Hernia with Incarcerated Necrosis at Ascending Colon and the Perforation of Appendix, Case Report and Review of 56 Domestic Cases. The Japanese Journal of Gastroenterological Surgery. 37(3). 318–322. 1 indexed citations

12.

Nakamoto, Yoshihiko, et al.. (2004). A CASE OF METACHRONOUS CANCER DEVELOPING IN THE RECONSTRUCTED GASTRIC TUBE FOLLOWING SUBTOTAL ESOPHAGECTOMY FOR ESOPHAGEAL CANCER. Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 65(6). 1548–1552. 2 indexed citations

13.

Ogata, Masaaki, James R. Mateer, & Robert E. Condon. (1996). Prospective Evaluation of Abdominal Sonography for the Diagnosis of Bowel Obstruction. Annals of Surgery. 223(3). 237–241. 62 indexed citations

14.

Mateer, James R., et al.. (1995). Prospective Analysis of a Rapid Trauma Ultrasound Examination Performed by Emergency Physicians. PubMed. 38(6). 879–885. 285 indexed citations

15.

Ogata, Masaaki, et al.. (1994). Abdominal ultrasonography for the diagnosis of strangulation in small bowel obstruction. British journal of surgery. 81(3). 421–424. 38 indexed citations

16.

Ogata, Masaaki, et al.. (1994). Abdominal sonography for the diagnosis of large bowel obstruction. Surgery Today. 24(9). 791–794. 8 indexed citations

17.

Ikura, Yoshihiro, Ryo Hosotani, Hiroshi Aoyama, et al.. (1993). Carcinosarcoma of the esophagus: A report of two cases. Surgery Today. 23(6). 562–567. 10 indexed citations

18.

Konishi, Yutaka, K. Shimada, Hitoshi Tochio, et al.. (1992). Color Doppler echography of breast diseases: Detection rate of color flow signals and significance of color Doppler echography in breast diseases. 19(5). 19–26. 1 indexed citations

19.

Ogata, Masaaki, et al.. (1988). [Diagnosis and timing of operation for strangulation ileus--especially concerning the usefulness of ultrasonography].. PubMed. 89(3). 345–51. 4 indexed citations

20.

Ogata, Masaaki, et al.. (1988). A CASE REPORT OF INTUSSUSCEPTION AT BRAUN'S ANASTOMOSIS OCCURRING AFTER TOTAL GASTRECTOMY. The journal of the Japanese Practical Surgeon Society. 49(5). 860–864. 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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