Junko Umeda

1.8k total citations
42 papers, 1.3k citations indexed

About

Junko Umeda is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, Junko Umeda has authored 42 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 37 papers in Surgery, 28 papers in Pulmonary and Respiratory Medicine and 28 papers in Oncology. Recurrent topics in Junko Umeda's work include Pancreatic and Hepatic Oncology Research (28 papers), Gallbladder and Bile Duct Disorders (26 papers) and Pediatric Hepatobiliary Diseases and Treatments (13 papers). Junko Umeda is often cited by papers focused on Pancreatic and Hepatic Oncology Research (28 papers), Gallbladder and Bile Duct Disorders (26 papers) and Pediatric Hepatobiliary Diseases and Treatments (13 papers). Junko Umeda collaborates with scholars based in Japan and United States. Junko Umeda's co-authors include Takao Itoi, Takayoshi Tsuchiya, Atsushi Sofuni, Fumihide Itokawa, Fuminori Moriyasu, Nobuhito Ikeuchi, Reina Tanaka, Shujiro Tsuji, Toshio Kurihara and Kentaro Ishii and has published in prestigious journals such as Gastroenterology, International Journal of Molecular Sciences and The American Journal of Gastroenterology.

In The Last Decade

Junko Umeda

40 papers receiving 1.3k citations

Peers

Junko Umeda
E. Boriés France
Hyun Jong Choi South Korea
David E. Loren United States
Mihai Rimbaș Romania
Juergen F. Riemann Germany
Zacharias Tsiamoulos United Kingdom
Yun Nah Lee South Korea
Mary Lou Jondal United States
Guduru Venkat Rao India
André Daniel Choury France
E. Boriés France
Junko Umeda
Citations per year, relative to Junko Umeda Junko Umeda (= 1×) peers E. Boriés

Countries citing papers authored by Junko Umeda

Since Specialization
Citations

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

Fields of papers citing papers by Junko Umeda

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Junko Umeda

This figure shows the co-authorship network connecting the top 25 collaborators of Junko Umeda. A scholar is included among the top collaborators of Junko Umeda 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 Junko Umeda. Junko Umeda 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.
Itoi, Takao, Mitsuru Fujita, Nobuhito Ikeuchi, et al.. (2016). Effectiveness of contrast-enhanced endoscopic ultrasound for detecting mural nodules in intraductal papillary mucinous neoplasm of the pancreas and for making therapeutic decisions. Endoscopic Ultrasound. 5(6). 377–377. 42 indexed citations
2.
Mukai, Shuntaro, Takao Itoi, Reiko Ashida, et al.. (2015). Multicenter, prospective, crossover trial comparing the door-knocking method with the conventional method for EUS-FNA of solid pancreatic masses (with videos). Gastrointestinal Endoscopy. 83(6). 1210–1217. 32 indexed citations
3.
Tsuchiya, Takayoshi, Takao Itoi, Iruru Maetani, et al.. (2015). Effectiveness of the J-Tip Guidewire for Selective Biliary Cannulation Compared to Conventional Guidewires (The JANGLE Study). Digestive Diseases and Sciences. 60(8). 2502–2508. 13 indexed citations
4.
Ishii, Kentaro, Takao Itoi, Ryosuke Tonozuka, et al.. (2015). Balloon enteroscopy–assisted ERCP in patients with Roux-en-Y gastrectomy and intact papillae (with videos). Gastrointestinal Endoscopy. 83(2). 377–386.e6. 78 indexed citations
5.
Umeda, Junko, Takao Itoi, Takayoshi Tsuchiya, et al.. (2015). A newly designed plastic stent for EUS-guided hepaticogastrostomy: a prospective preliminary feasibility study (with videos). Gastrointestinal Endoscopy. 82(2). 390–396.e2. 98 indexed citations
6.
Katanuma, Akio, Takao Itoi, Junko Umeda, et al.. (2014). A Novel Dry Model for Practicable Sphincterotomy and Precut Needle Knife Sphincterotomy. Gastroenterology Research and Practice. 2014. 1–7. 6 indexed citations
7.
Honjo, Mitsuyoshi, Takao Itoi, Atsushi Sofuni, et al.. (2014). A case of mucinous cystoadenocarcinoma with unpredictable changes. Suizo. 29(5). 845–851. 2 indexed citations
8.
Sofuni, Atsushi, Fuminori Moriyasu, Fumihide Itokawa, et al.. (2014). Safety trial of high-intensity focused ultrasound therapy for pancreatic cancer. World Journal of Gastroenterology. 20(28). 9570–9577. 41 indexed citations
9.
Itoi, Takao, Hiroshi Kawakami, Akio Katanuma, et al.. (2014). Endoscopic nasogallbladder tube or stent placement in acute cholecystitis: a preliminary prospective randomized trial in Japan (with videos). Gastrointestinal Endoscopy. 81(1). 111–118. 59 indexed citations
10.
Sofuni, Atsushi, Takao Itoi, Shujiro Tsuji, et al.. (2012). New Advances in Contrast-enhanced Ultrasonography for Pancreatic Disease-usefulness of the New Generation Contrast Agent and Contrast-enhanced Ultrasonographic Imaging method-. Journal of Gastroenterology and Hepatology Research. 1(10). 233–240. 4 indexed citations
11.
Sofuni, Atsushi, Fuminori Moriyasu, Shujiro Tsuji, et al.. (2011). The usefulness of contrast-enhanced ultrasonography with Sonazoid® in pancreatic diseases. Suizo. 26(1). 11–22.
12.
Tsuji, Shujiro, Atsushi Sofuni, Fuminori Moriyasu, et al.. (2011). Contrast-Enhanced Ultrasonography in the Diagnosis of Gallbladder Disease. Hepatogastroenterology. 59(114). 336–40. 18 indexed citations
13.
Itoi, Takao, Atsushi Sofuni, Fumihide Itokawa, et al.. (2011). Free-hand direct insertion ability into a simulated ex vivo model using a prototype multibending peroral direct cholangioscope (with videos). Gastrointestinal Endoscopy. 76(2). 454–457. 8 indexed citations
14.
15.
Itokawa, Fumihide, Takao Itoi, Atsushi Sofuni, et al.. (2011). EUS elastography combined with the strain ratio of tissue elasticity for diagnosis of solid pancreatic masses. Journal of Gastroenterology. 46(6). 843–853. 118 indexed citations
16.
Itoi, Takao, Fumihide Itokawa, Atsushi Sofuni, Junko Umeda, & Takayoshi Tsuchiya. (2011). LATE BLEEDING AFTER EUS‐GUIDED TRANSJEJUNAL DRAINAGE OF A PANCREATIC PSEUDOCYST IN A ROUX‐EN‐Y PATIENT. Digestive Endoscopy. 23(s1). 51–53. 6 indexed citations
17.
Itoi, Takao, Hiroyuki Isayama, Atsushi Sofuni, et al.. (2011). Stent selection and tips on placement technique of EUS‐guided biliary drainage: transduodenal and transgastric stenting. Journal of Hepato-Biliary-Pancreatic Sciences. 18(5). 664–672. 72 indexed citations
18.
Itoi, Takao, Atsushi Sofuni, Fumihide Itokawa, et al.. (2010). New large-diameter balloon-equipped sphincterotome for removal of large bile duct stones (with videos). Gastrointestinal Endoscopy. 72(4). 825–830. 14 indexed citations
19.
Itoi, Takao, Toshio Kurihara, Atsushi Sofuni, et al.. (2010). ENDOSCOPIC PANCREATIC SPHINCTEROTOMY PLUS LARGE‐BALLOON DILATION FOR REMOVAL OF A LARGE IMPACTED PANCREATIC DUCT STONE (WITH VIDEO). Digestive Endoscopy. 22(4). 345–347. 2 indexed citations
20.
Itoi, Takao, Kentaro Ishii, Atsushi Sofuni, et al.. (2009). Single-Balloon Enteroscopy–Assisted ERCP in Patients With Billroth II Gastrectomy or Roux-en-Y Anastomosis (With Video). The American Journal of Gastroenterology. 105(1). 93–99. 141 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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