Hiroshi Imaoka

3.1k total citations
107 papers, 2.0k citations indexed

About

Hiroshi Imaoka is a scholar working on Oncology, Surgery and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Hiroshi Imaoka has authored 107 papers receiving a total of 2.0k indexed citations (citations by other indexed papers that have themselves been cited), including 71 papers in Oncology, 62 papers in Surgery and 39 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Hiroshi Imaoka's work include Pancreatic and Hepatic Oncology Research (54 papers), Neuroendocrine Tumor Research Advances (30 papers) and Gallbladder and Bile Duct Disorders (18 papers). Hiroshi Imaoka is often cited by papers focused on Pancreatic and Hepatic Oncology Research (54 papers), Neuroendocrine Tumor Research Advances (30 papers) and Gallbladder and Bile Duct Disorders (18 papers). Hiroshi Imaoka collaborates with scholars based in Japan, India and Egypt. Hiroshi Imaoka's co-authors include Kenji Yamao, Nobumasa Mizuno, Susumu Hijioka, Kazuo Hara, Masahiro Tajika, Yasumasa Niwa, Yasuhiro Shimizu, Tsutomu Tanaka, Vikram Bhatia and Yasushi Yatabe and has published in prestigious journals such as Journal of Clinical Oncology, SHILAP Revista de lepidopterología and Gastroenterology.

In The Last Decade

Hiroshi Imaoka

99 papers receiving 2.0k citations

Peers

Hiroshi Imaoka
Ryan T. Groeschl United States
Susumu Hijioka Japan
Osamu Kainuma Japan
Pelin Bağcı Türkiye
Dong Wook Choi South Korea
Jason Klapman United States
Shunichi Takahata Japan
Kazuto Inoue Japan
Adele Fornelli Italy
Flora Poizat France
Ryan T. Groeschl United States
Hiroshi Imaoka
Citations per year, relative to Hiroshi Imaoka Hiroshi Imaoka (= 1×) peers Ryan T. Groeschl

Countries citing papers authored by Hiroshi Imaoka

Since Specialization
Citations

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

Fields of papers citing papers by Hiroshi Imaoka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hiroshi Imaoka

This figure shows the co-authorship network connecting the top 25 collaborators of Hiroshi Imaoka. A scholar is included among the top collaborators of Hiroshi Imaoka 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 Hiroshi Imaoka. Hiroshi Imaoka 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.
Imaoka, Hiroshi, Masafumi Ikeda, Masato Ozaka, et al.. (2025). Phase 1/2 study of liposomal irinotecan plus S-1 for metastatic pancreatic cancer refractory to gemcitabine-based treatment. European Journal of Cancer. 222. 115424–115424.
2.
Kawamoto, Yasuyuki, Yoshito Komatsu, Shunsuke Kondo, et al.. (2024). Phase II trial of niraparib for BRCA -mutated biliary tract, pancreatic and other gastrointestinal cancers: NIR-B. Future Oncology. 20(26). 1901–1907. 1 indexed citations
3.
Shibuki, Taro, Kazuo Watanabe, Mitsuhito Sasaki, et al.. (2024). Treatment outcomes of gemcitabine plus nab-paclitaxel in pancreatic cancer patients with malignant ascites. Pancreatology. 24(4). 616–623.
4.
Tozuka, Yuichi, Hiroshi Imaoka, Satoshi Kobayashi, et al.. (2024). 1522P S-1 monotherapy versus nanoliposomal irinotecan plus 5-fluorouracil/leucovorin regimen for second-line therapy of recurrent or metastatic pancreatic cancer (JON 2109-P). Annals of Oncology. 35. S930–S930. 1 indexed citations
5.
Morizane, Chigusa, Nozomu Machida, Yoshitaka Honma, et al.. (2023). 1203P Role of tumor markers before or during chemotherapy for poorly differentiated neuroendocrine carcinomas of the digestive system: An exploratory analysis of JCOG1213. Annals of Oncology. 34. S709–S709. 1 indexed citations
6.
Shibuki, Taro, Mitsuhito Sasaki, Hiroshi Imaoka, et al.. (2023). Palliative radiotherapy for tumor bleeding in patients with unresectable pancreatic cancer: a single-center retrospective study. Radiation Oncology. 18(1). 178–178. 1 indexed citations
7.
Mitsunaga, Shuichi, Masafumi Ikeda, Hiroshi Imaoka, et al.. (2023). Fibroblast inhibition by tocilizumab enabled gemcitabine/nab‐paclitaxel rechallenge for pancreatic cancer. Cancer Science. 114(10). 4006–4019. 7 indexed citations
8.
9.
Hashimoto, Yusuke, Izumi Ohno, Hideaki Takahashi, et al.. (2018). EUS-guided n-butyl-2-cyanoacrylate injection therapy for ruptured isolated left gastric artery pseudoaneurysm. Endoscopic Ultrasound. 8(1). 58–58. 5 indexed citations
10.
Kondo, Shinya, Masahiro Tajika, Tsutomu Tanaka, et al.. (2016). Prognostic factors for salvage endoscopic resection for esophageal squamous cell carcinoma after chemoradiotherapy or radiotherapy alone. SHILAP Revista de lepidopterología. 4(8). E841–E848. 13 indexed citations
11.
Hijioka, Susumu, Kazuo Hara, Nobumasa Mizuno, et al.. (2016). Diagnostic performance and factors influencing the accuracy of EUS-FNA of pancreatic neuroendocrine neoplasms. Journal of Gastroenterology. 51(9). 923–930. 45 indexed citations
12.
13.
Imaoka, Hiroshi, Yasuhiro Shimizu, Nobumasa Mizuno, et al.. (2014). Ring-enhancement pattern on contrast-enhanced CT predicts adenosquamous carcinoma of the pancreas: A matched case-control study. Pancreatology. 14(3). 221–226. 26 indexed citations
14.
Hijioka, Susumu, Yasuhiro Shimizu, Nobumasa Mizuno, et al.. (2014). Can Long-Term Follow-Up Strategies Be Determined Using a Nomogram-Based Prediction Model of Malignancy Among Intraductal Papillary Mucinous Neoplasms of the Pancreas?. Pancreas. 43(3). 367–372. 13 indexed citations
15.
Imaoka, Hiroshi, Nobumasa Mizuno, Yasuhiro Shimizu, et al.. (2013). Chemoradiotherapy versus chemotherapy in patients with locally advanced pancreatic cancer -a large single center study. Suizo. 28(1). 42–48. 1 indexed citations
16.
Yamao, Kenji, Nobumasa Mizuno, Kazuo Hara, et al.. (2013). Explanation for IPMN Guideline 2012 and its problems to be solved. Suizo. 28(2). 131–135.
17.
Nishi, Takeshi, Yasunari Kawabata, Ryoji Hyakudomi, et al.. (2012). A case of pancreatic cancer combined with metastases to skin and muscle: a case report. Suizo. 27(1). 54–61.
18.
Haba, Shin, Kenji Yamao, Vikram Bhatia, et al.. (2012). Diagnostic ability and factors affecting accuracy of endoscopic ultrasound-guided fine needle aspiration for pancreatic solid lesions: Japanese large single center experience. Journal of Gastroenterology. 48(8). 973–981. 129 indexed citations
19.
Imaoka, Hiroshi, Kenji Yamao, Susumu Hijioka, et al.. (2011). Pseudomyxoma peritonei arising from intraductal papillary neoplasm after surgical pancreatectomy: report of 2 cases and review of the literature. Clinical Journal of Gastroenterology. 5(1). 15–19. 9 indexed citations
20.
Furuta, Koichiro, Kyoichi Adachi, Yuko Mishima, et al.. (2006). A Japanese case of eosinophilic esophagitis. Journal of Gastroenterology. 41(7). 706–710. 54 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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