Kousei Ishigami

5.3k total citations
265 papers, 3.8k citations indexed

About

Kousei Ishigami is a scholar working on Surgery, Radiology, Nuclear Medicine and Imaging and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Kousei Ishigami has authored 265 papers receiving a total of 3.8k indexed citations (citations by other indexed papers that have themselves been cited), including 101 papers in Surgery, 98 papers in Radiology, Nuclear Medicine and Imaging and 78 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Kousei Ishigami's work include MRI in cancer diagnosis (52 papers), Pancreatic and Hepatic Oncology Research (41 papers) and Hepatocellular Carcinoma Treatment and Prognosis (41 papers). Kousei Ishigami is often cited by papers focused on MRI in cancer diagnosis (52 papers), Pancreatic and Hepatic Oncology Research (41 papers) and Hepatocellular Carcinoma Treatment and Prognosis (41 papers). Kousei Ishigami collaborates with scholars based in Japan, United States and Germany. Kousei Ishigami's co-authors include Hiroshi Honda, Akihiro Nishie, Yoshiki Asayama, Yasuhiro Ushijima, Nobuhiro Fujita, Daisuke Okamoto, Tsuyoshi Tajima, Yukihisa Takayama, Kengo Yoshimitsu and Masakazu Hirakawa and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and American Journal of Respiratory and Critical Care Medicine.

In The Last Decade

Kousei Ishigami

249 papers receiving 3.7k citations

Peers

Countries citing papers authored by Kousei Ishigami

Since Specialization

Citations

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

Fields of papers citing papers by Kousei Ishigami

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kousei Ishigami

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

#	Work	Indexed citations
1	Quantitative Evaluation of Lung Perfusion by Dynamic Chest Radiography in Chronic Thromboembolic Pulmonary Hypertension: Comparison With Lung Perfusion Scintigraphy 2025 ·Pulmonary Circulation ·M. Ikeda, Yuzo Yamasaki, Koji Sagiyama, Kazuya Hosokawa, (unknown), Tomoyuki Hida, Takuya Hino, (unknown), Takuro Isoda, (unknown), Hidetake Yabuuchi, Kohtaro Abe, (unknown), Kousei Ishigami	0
2	Advantages of 3D High-Resolution Vessel Wall Imaging in a Patient With Blood Blister-Like Aneurysm: A Case Report and Literature Review 2024 ·Cureus ·(unknown), Kazufumi Kikuchi, (unknown), Koji Yamashita, (unknown), Koichi Arimura, Akira Nakamizo, Kousei Ishigami	1
3	Assessment of pulmonary function in COPD patients using dynamic digital radiography: A novel approach utilizing lung signal intensity changes during forced breathing 2024 ·European Journal of Radiology Open ·(unknown), (unknown), Takeshi Kubo, Takuya Hino, Akinori Hata, Yoshitake Yamada, Masako Ueyama, Mizuki Nishino, Atsuko Kurosaki, Kousei Ishigami, Shoji Kudoh, Hiroto Hatabu	3
4	Efficacy and safety of streptozocin-based chemotherapy for gastroenteropancreatic neuroendocrine tumors in Japanese clinical practice 2024 ·Japanese Journal of Clinical Oncology ·Masatoshi Murakami, Nao Fujimori, (unknown), Tetsuhide Ito, (unknown), (unknown), (unknown), (unknown), Keijiro Ueda, Kousei Ishigami, Yoshihiro Ogawa	1
5	Different Impact of Immunosuppressive Therapy on Cardiac Outcomes in Systemic Versus Isolated Cardiac Sarcoidosis 2024 ·International Heart Journal ·(unknown), Toru Hashimoto, Takeo Fujino, Kisho Ohtani, (unknown), (unknown), Keisuke Shinohara, Shouji Matsushima, Tomomi Ide, Yuzo Yamasaki, Takuro Isoda, Shingo Baba, Kousei Ishigami, Hiroyuki Tsutsui, Shintaro Kinugawa	0
6	Value of gadoxetic acid-enhanced MR imaging for preoperative prediction of future liver regeneration after hemihepatectomy 2024 ·Japanese Journal of Radiology ·Nobuhiro Fujita, Yasuhiro Ushijima, (unknown), Daisuke Okamoto, (unknown), (unknown), Shinji Itoh, Kousei Ishigami	0
7	Effect of lipiodol marking before CT-guided cryoablation on the outcome of sporadic renal cell carcinoma 2024 ·Diagnostic and Interventional Radiology ·Yasuhiro Ushijima, Daisuke Okamoto, Nobuhiro Fujita, (unknown), (unknown), (unknown), (unknown), (unknown), Kousei Ishigami	1
8	Multiparametric assessment of microvascular invasion in hepatocellular carcinoma using gadoxetic acid-enhanced MRI 2024 ·Abdominal Radiology ·Nobuhiro Fujita, Yasuhiro Ushijima, (unknown), Daisuke Okamoto, Noriaki Wada, (unknown), (unknown), (unknown), Noboru Harada, Junki Maehara, Yoshinao Oda, Kousei Ishigami, Akihiro Nishie	4
9	Clinical Implications of FDG-PET in Pancreatic Ductal Adenocarcinoma Patients Treated with Neoadjuvant Therapy 2023 ·Journal of Gastrointestinal Surgery ·Naoki Ikenaga, Kohei Nakata, Masataka Hayashi, So Nakamura, Toshiya Abe, Noboru Ideno, Masatoshi Murakami, Nao Fujimori, Nobuhiro Fujita, Takuro Isoda, Shingo Baba, Kousei Ishigami, Yoshinao Oda, Masafumi Nakamura	5
10	Posterior cingulate cortex spontaneous activity associated with motor response inhibition in patients with obsessive-compulsive disorder: A resting-state fMRI study 2023 ·Psychiatry Research Neuroimaging ·Hirofumi Tomiyama, Keitaro Murayama, Kiyotaka Nemoto, Mayumi Tomita, (unknown), (unknown), Kenta Kato, Akira Matsuo, (unknown), (unknown), Osamu Togao, Akio Hiwatashi, Kousei Ishigami, Tomohiro Nakao	4
11	Cortical high-flow sign on arterial spin labeling: a novel biomarker for IDH-mutation and 1p/19q-codeletion status in diffuse gliomas without intense contrast enhancement 2023 ·Neuroradiology ·Koji Yamashita, Osamu Togao, Kazufumi Kikuchi, Daisuke Kuga, Yuhei Sangatsuda, Yutaka Fujioka, Izumi Kinoshita, Makoto Obara, Koji Yoshimoto, Kousei Ishigami	3
12	The T2-FLAIR mismatch sign in glioblastoma, isocitrate dehydrogenase wild-type A case report 2023 ·Acta Radiologica Open ·Shunsuke Nishimura, Koji Yamashita, Osamu Togao, Kazufumi Kikuchi, Daisuke Kuga, Hidetaka Yamamoto, Koji Yoshimoto, Kousei Ishigami	2
13	The cortical high-flow sign of oligodendroglioma, IDH-mutant and 1p/19q-codeleted: comparison between arterial spin labeling and dynamic susceptibility contrast methods 2023 ·Neuroradiology ·Koji Yamashita, Osamu Togao, Kazufumi Kikuchi, Daisuke Kuga, Yuhei Sangatsuda, Yutaka Fujioka, Koji Yoshimoto, Kousei Ishigami	2
14	Arterial Spin Labeling‐Based MR Angiography for Cerebrovascular Diseases: Principles and Clinical Applications 2023 ·Journal of Magnetic Resonance Imaging ·Osamu Togao, Makoto Obara, Koji Yamashita, Kazufumi Kikuchi, (unknown), (unknown), Koichi Arimura, Ataru Nishimura, Nobutaka Horie, (unknown), Marc Van Cauteren, Kousei Ishigami	7
15	Diagnostic MR imaging features of hypomyelination of early myelinating structures: A case report 2023 ·The Neuroradiology Journal ·(unknown), Koji Yamashita, Kazufumi Kikuchi, (unknown), Fumihiko Fujii, Pin Fee Chong, Yasunari Sakai, Hirotomo Saitsu, Ken Inoue, Osamu Togao, Kousei Ishigami	1
16	Incidence and severity of pulmonary embolism in COVID-19 infection: Ancestral, Alpha, Delta, and Omicron variants 2023 ·Medicine ·Noriaki Wada, Yi Li, (unknown), Takuya Hino, Vladimir I. Valtchinov, Elizabeth Gay, Mizuki Nishino, Mark M. Hammer, Bruno Madore, Charles R.G. Guttmann, Kousei Ishigami, Gary M. Hunninghake, Bruce D. Levy, Kenneth M. Kaye, David C. Christiani, Hiroto Hatabu	5
17	Clinical significance of the combination of preoperative SUVmax and CEA in patients with clinical stage IA lung adenocarcinoma 2022 ·Thoracic Cancer ·(unknown), Naoki Haratake, Tomoyoshi Takenaka, (unknown), (unknown), Kenji Watanabe, (unknown), Yuka Oku, Yuki Ono, Shinkichi Takamori, Mikihiro Kohno, Shingo Baba, Kousei Ishigami, Tomoharu Yoshizumi	6
18	Alveolar soft part sarcoma of the orbit: A case report 2021 ·SHILAP Revista de lepidopterología ·(unknown), Kazufumi Kikuchi, Osamu Togao, Shingo Baba, Masahiro Mizoguchi, Mika Tanabe, Mamoru Ito, Hidetaka Yamamoto, Kousei Ishigami, Akio Hiwatashi	3
19	Impact of Nuclear Factor Erythroid 2–Related Factor 2 in Hepatocellular Carcinoma: Cancer Metabolism and Immune Status 2021 ·Hepatology Communications ·Norifumi Iseda, Shinji Itoh, Tomoharu Yoshizumi, Takahiro Tomiyama, Akinari Morinaga, Kyohei Yugawa, Masahiro Shimokawa, Tomonari Shimagaki, Huanlin Wang, Takeshi Kurihara, Yoshiyuki Kitamura, Yoshihiro Nagao, Takeo Toshima, Noboru Harada, Kenichi Kohashi, Shingo Baba, Kousei Ishigami, Yoshinao Oda, Masaki Mori	14
20	Symptomatic jugular venous reflux with dilatation of the superior ophthalmic vein mimicking cavernous dural arteriovenous fistula 2019 ·SHILAP Revista de lepidopterología ·(unknown), Akira Yogi, (unknown), Kousei Ishigami, Sadayuki Murayama	3

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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