Chisato Hamashima

4.1k total citations · 1 hit paper
82 papers, 2.9k citations indexed

About

Chisato Hamashima is a scholar working on Oncology, Pulmonary and Respiratory Medicine and Surgery. According to data from OpenAlex, Chisato Hamashima has authored 82 papers receiving a total of 2.9k indexed citations (citations by other indexed papers that have themselves been cited), including 45 papers in Oncology, 38 papers in Pulmonary and Respiratory Medicine and 31 papers in Surgery. Recurrent topics in Chisato Hamashima's work include Colorectal Cancer Screening and Detection (34 papers), Gastric Cancer Management and Outcomes (32 papers) and Helicobacter pylori-related gastroenterology studies (24 papers). Chisato Hamashima is often cited by papers focused on Colorectal Cancer Screening and Detection (34 papers), Gastric Cancer Management and Outcomes (32 papers) and Helicobacter pylori-related gastroenterology studies (24 papers). Chisato Hamashima collaborates with scholars based in Japan, United States and United Kingdom. Chisato Hamashima's co-authors include Akira Fukao, Mikizo Okamoto, Michiko Shabana, Shunya Ikeda, Akinori Hisashige, Shuzo Nishimura, Aki Tsuchiya, Naoki Ikegami, Makoto Tamura and Takashi Fukuda and has published in prestigious journals such as Gastroenterology, PLoS ONE and Scientific Reports.

In The Last Decade

Chisato Hamashima

80 papers receiving 2.8k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Update version of the Japanese Guidelines for Gastric Cancer Screening

2018 261 citations Chisato Hamashima et al. Japanese Journal of Clinical Oncology profile →

Peers

Chisato Hamashima

PRM

SURGE

ONCOL

EPIDE

J. L. Stanford United States

Jae Kwan Jun South Korea

Eliza W. Beal United States

Mette Kalager Norway

Derek Alderson United Kingdom

Hui Zhao United States

Carlo Senore Italy

Lisa M. Hess United States

Paul C. Schroy United States

Motaz Qadan United States

J. L. Stanford United States

Chisato Hamashima

1.3k ×0.9

PRM

1.4k ×1.0

SURGE

756 ×0.7

ONCOL

118 ×0.4

178 ×0.6

EPIDE

Citations per year, relative to Chisato Hamashima Chisato Hamashima (= 1×) peers J. L. Stanford

Countries citing papers authored by Chisato Hamashima

Since Specialization

Citations

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

Fields of papers citing papers by Chisato Hamashima

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Chisato Hamashima

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

Terasawa, Teruhiko, Koichiro Abe, Satoyo Hosono, et al.. (2025). Single-round performance of colorectal cancer screening programs: a network meta-analysis of randomized clinical trials. BMC Medicine. 23(1). 110–110. 1 indexed citations

Hamashima, Chisato, et al.. (2024). Comparative Effectiveness of Decision Aids for Cancer-Screening Decision Making: An Overview of Reviews. Journal of General Internal Medicine. 39(16). 3299–3314. 2 indexed citations

Wee, Hwee Lin, Karen Canfell, Han‐Mo Chiu, et al.. (2024). Cancer screening programs in South-east Asia and Western Pacific. BMC Health Services Research. 24(1). 102–102. 12 indexed citations

Hamashima, Chisato, et al.. (2023). Radiographic and endoscopic screening to reduce gastric cancer mortality: a systematic review and meta-analysis. The Lancet Regional Health - Western Pacific. 35. 100741–100741. 10 indexed citations

Hamashima, Chisato, et al.. (2021). Effectiveness of decision aids on cancer-screening decision-making: an umbrella review protocol. BMJ Open. 11(12). e051156–e051156. 3 indexed citations

Hamashima, Chisato, Kenichi Yoshimura, & Akira Fukao. (2020). A study protocol for expanding the screening interval of endoscopic screening for gastric cancer based on individual risks: prospective cohort study of gastric cancer screening. Annals of Translational Medicine. 8(23). 1604–1604. 9 indexed citations

Terasawa, Teruhiko, Chisato Hamashima, Katsuaki Kato, et al.. (2019). Helicobacter pylorieradication treatment for gastric carcinoma prevention in asymptomatic or dyspeptic adults: systematic review and Bayesian meta-analysis of randomised controlled trials. BMJ Open. 9(9). e026002–e026002. 4 indexed citations

Hamashima, Chisato, et al.. (2017). Receiver operating characteristic analysis of prediction for gastric cancer development using serum pepsinogen and Helicobacter pylori antibody tests. BMC Cancer. 17(1). 183–183. 17 indexed citations

Hamashima, Chisato, et al.. (2017). Optimal interval of endoscopic screening based on stage distributions of detected gastric cancers. BMC Cancer. 17(1). 740–740. 9 indexed citations

10.

Sano, Hiroshi, Rei Goto, & Chisato Hamashima. (2017). Does lack of resources impair access to breast and cervical cancer screening in Japan?. PLoS ONE. 12(7). e0180819–e0180819. 11 indexed citations

11.

Hamashima, Chisato. (2015). Impact of endoscopic screening on mortality reduction from gastric cancer. World Journal of Gastroenterology. 21(8). 2460–2460. 78 indexed citations

12.

Terasawa, Teruhiko, Hiroshi Nishida, Katsuaki Kato, et al.. (2014). Prediction of Gastric Cancer Development by Serum Pepsinogen Test and Helicobacter pylori Seropositivity in Eastern Asians: A Systematic Review and Meta-Analysis. PLoS ONE. 9(10). e109783–e109783. 74 indexed citations

13.

Hamashima, Chisato, et al.. (2013). A Community-Based, Case-Control Study Evaluating Mortality Reduction from Gastric Cancer by Endoscopic Screening in Japan. Value in Health. 16(7). A395–A395. 5 indexed citations

14.

Saika, Kumiko, et al.. (2011). Evaluation of Feedback Interventions for Improving the Quality Assurance of Cancer Screening in Japan: Study Design and Report of the Baseline Survey. Japanese Journal of Clinical Oncology. 42(2). 96–104. 3 indexed citations

15.

Higashi, Takahiro, et al.. (2010). Evaluation and Revision of Checklists for Screening Facilities and Municipal Governmental Programs for Gastric Cancer and Colorectal Cancer Screening in Japan. Japanese Journal of Clinical Oncology. 40(11). 1021–1030. 9 indexed citations

16.

Hamashima, Chisato, Hiroshi Saito, & Tomotaka Sobue. (2007). Awareness of and adherence to cancer screening guidelines among health professionals in Japan. Cancer Science. 98(8). 1241–1247. 5 indexed citations

17.

Hamashima, Chisato. (2002). Long‐term quality of life of postoperative rectal cancer patients. Journal of Gastroenterology and Hepatology. 17(5). 571–576. 64 indexed citations

18.

Hamashima, Chisato & Katsumi Yoshida. (2000). Cost-effectiveness analysis of prostate cancer screening. Environmental Health and Preventive Medicine. 5(3). 111–117. 7 indexed citations

19.

Hamashima, Chisato, et al.. (1998). Applicability of Pharmacoeconomic Studies to Policy Decision in Japan. Iryo To Shakai. 8(1). 11–24. 1 indexed citations

20.

Hamashima, Chisato, et al.. (1997). Critical Appraisal of Pharmacoeconomic Studies in Japan. 2(2). 91–101. 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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