Hirofumi Koga

2.8k total citations
85 papers, 2.1k citations indexed

About

Hirofumi Koga is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Oncology. According to data from OpenAlex, Hirofumi Koga has authored 85 papers receiving a total of 2.1k indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Pulmonary and Respiratory Medicine, 31 papers in Surgery and 18 papers in Oncology. Recurrent topics in Hirofumi Koga's work include Prostate Cancer Treatment and Research (20 papers), Prostate Cancer Diagnosis and Treatment (17 papers) and Bladder and Urothelial Cancer Treatments (17 papers). Hirofumi Koga is often cited by papers focused on Prostate Cancer Treatment and Research (20 papers), Prostate Cancer Diagnosis and Treatment (17 papers) and Bladder and Urothelial Cancer Treatments (17 papers). Hirofumi Koga collaborates with scholars based in Japan, United States and Australia. Hirofumi Koga's co-authors include Seiji Naito, Hideki Sumimoto, Takashi Akasaki, Yasuo Kuwabara, Kazutaka Hayashi, Makoto Nakagawa, Akira Yokomizo, Hideyuki Akaza, Akito Yamaguchi and Fuyuhiko Inagaki and has published in prestigious journals such as Journal of Biological Chemistry, Cancer and Oncogene.

In The Last Decade

Hirofumi Koga

84 papers receiving 2.1k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Hirofumi Koga Japan 24 589 569 553 379 346 85 2.1k
Damien Ambrosetti France 26 574 1.0× 867 1.5× 490 0.9× 489 1.3× 181 0.5× 90 2.3k
Luka Brčić Austria 31 882 1.5× 563 1.0× 655 1.2× 606 1.6× 132 0.4× 143 2.5k
Agnès François France 25 385 0.7× 422 0.7× 257 0.5× 374 1.0× 758 2.2× 55 1.6k
Hajime Tsunoda Japan 25 241 0.4× 509 0.9× 497 0.9× 243 0.6× 132 0.4× 100 2.5k
Osamu Ishiko Japan 25 209 0.4× 537 0.9× 384 0.7× 335 0.9× 73 0.2× 174 2.4k
Anna Biernacka United States 21 490 0.8× 1.5k 2.7× 304 0.5× 586 1.5× 129 0.4× 40 2.8k
Lee Ann Baldridge United States 29 616 1.0× 1.5k 2.6× 793 1.4× 915 2.4× 79 0.2× 48 3.3k
Yong-Jian Geng United States 24 439 0.7× 956 1.7× 745 1.3× 111 0.3× 123 0.4× 39 2.5k
Miwa Uzuki Japan 26 419 0.7× 490 0.9× 386 0.7× 558 1.5× 76 0.2× 75 2.1k
Hiromitsu Mimata Japan 27 647 1.1× 1.1k 2.0× 522 0.9× 663 1.7× 73 0.2× 181 2.9k

Countries citing papers authored by Hirofumi Koga

Since Specialization
Citations

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

Fields of papers citing papers by Hirofumi Koga

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hirofumi Koga

This figure shows the co-authorship network connecting the top 25 collaborators of Hirofumi Koga. A scholar is included among the top collaborators of Hirofumi Koga 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 Hirofumi Koga. Hirofumi Koga 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.
Shiota, Masaki, Akira Yokomizo, Hirofumi Koga, et al.. (2014). The Oncological Outcomes and Risk Stratification in Docetaxel Chemotherapy for Castration-resistant Prostate Cancer. Japanese Journal of Clinical Oncology. 44(9). 860–867. 14 indexed citations
2.
Saito, Shiro, Kazuto Ito, Atsunori Yorozu, et al.. (2014). Nationwide Japanese Prostate Cancer Outcome Study of Permanent Iodine-125 Seed Implantation (J-POPS). International Journal of Clinical Oncology. 20(2). 375–385. 26 indexed citations
3.
Sugimoto, Mikio, Hiromi Hirama, Akito Yamaguchi, et al.. (2014). Should inclusion criteria for active surveillance for low-risk prostate cancer be more stringent? From an interim analysis of PRIAS-JAPAN. World Journal of Urology. 33(7). 981–987. 11 indexed citations
4.
Naito, Seiji, Tadashi Tsukamoto, Hirofumi Koga, et al.. (2008). Docetaxel Plus Prednisolone for the Treatment of Metastatic Hormone-refractory Prostate Cancer: A Multicenter Phase II Trial in Japan. Japanese Journal of Clinical Oncology. 38(5). 365–372. 73 indexed citations
5.
Koga, Hirofumi & Seiji Naito. (2006). [Recent progress in the treatment for urothelial cancer].. PubMed. 33(2). 164–70. 3 indexed citations
6.
Kaneko, Koichiro, Masayuki Sasaki, Takato Morioka, et al.. (2006). Pre-surgical identification of epileptogenic areas in temporal lobe epilepsy by 123I-iomazenil SPECT: A comparison with IMP SPECT and FDG PET. Nuclear Medicine Communications. 27(11). 893–899. 18 indexed citations
7.
Kaneko, Koichiro, Yasuo Kuwabara, Futoshi Mihara, et al.. (2004). Validation of the CBF, CBV, and MTT values by perfusion MRI in chronic occlusive cerebrovascular disease. Academic Radiology. 11(5). 489–497. 24 indexed citations
8.
Nakagawa, Makoto, Yasuo Kuwabara, Masayuki Sasaki, et al.. (2002). 11C-methionine uptake in cerebrovascular disease: A comparison with18F-FDG PET and99mTc-HMPAO SPECT. Annals of Nuclear Medicine. 16(3). 207–211. 23 indexed citations
9.
Chen, Tao, Yasuo Kuwabara, Hiroyuki Tsutsui, et al.. (2002). The usefulness of dipyridamole thallium-201 single photon emission computed tomography for predicting perioperative cardiac events in patients undergoing non-cardiac vascular surgery. Annals of Nuclear Medicine. 16(1). 45–53. 9 indexed citations
10.
Kuwabara, Yasuo, Masayuki Sasaki, Hideki Hirakata, et al.. (2002). Cerebral blood flow and vasodilatory capacity in anemia secondary to chronic renal failure. Kidney International. 61(2). 564–569. 81 indexed citations
11.
Yoshiura, Takashi, Futoshi Mihara, Koji Ogomori, et al.. (2002). MR Relative Cerebral Blood Flow Mapping of Alzheimer Disease. Academic Radiology. 9(12). 1383–1387. 13 indexed citations
12.
Kiyoshima, Keijiro, et al.. (2001). Seminal vesicle cyst associated with ipsilateral renal dysplasia: A report of two cases. 63(3). 147–150. 1 indexed citations
13.
Sasaki, Masayuki, Yasuo Kuwabara, Tsuyoshi Yoshida, et al.. (2001). Comparison of MET-PET and FDG-PET for differentiation between benign lesions and malignant tumors of the lung. Annals of Nuclear Medicine. 15(5). 425–431. 22 indexed citations
14.
Yokomizo, Akira, et al.. (2000). Technique and application of endoluminal ultrasonography using a flexible cystoscope. 62(4). 161–166.
15.
Naito, Seiji, Akira Yokomizo, & Hirofumi Koga. (1999). Mechanisms of drug resistance in chemotherapy for urogenital carcinoma. International Journal of Urology. 6(9). 427–439. 44 indexed citations
16.
Akasaki, Takashi, Hirofumi Koga, & Hideki Sumimoto. (1999). Phosphoinositide 3-Kinase-dependent and -independent Activation of the Small GTPase Rac2 in Human Neutrophils. Journal of Biological Chemistry. 274(25). 18055–18059. 156 indexed citations
17.
Hasegawa, Shuji, Seiji Naito, Shuji Kotoh, et al.. (1996). The expression of drug-resistant genes and the acquirement of drug resistance in human bladder cancer cell lines. 58(4). 331–336. 1 indexed citations
18.
Koga, Hirofumi, et al.. (1996). CLINICAL REVIEW OF 105 CASES OF ADRENAL TUMOR, WITH SPECIAL REFERENCE TO INCIDENTAL TUMOR. The Japanese Journal of Urology. 87(6). 915–922. 2 indexed citations
19.
Kanda, Hidetoshi, Keiko Mori, Hirofumi Koga, et al.. (1994). Construction and Expression of Chimeric Antibodies by a Simple Replacement of Heavy and Light Chain V Genes into a Single Cassette Vector. Hybridoma. 13(5). 359–366. 4 indexed citations
20.
Koga, Hirofumi, Hidetoshi Kanda, Manabu Nakashima, et al.. (1990). Mouse-Human Chimeric Monoclonal Antibody to Carcinoembryonic Antigen (CEA): In Vitro and In Vivo Activities. PubMed. 9(1). 43–56. 15 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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