Kiyoshi Ohara

2.7k total citations
53 papers, 1.9k citations indexed

About

Kiyoshi Ohara is a scholar working on Surgery, Hepatology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Kiyoshi Ohara has authored 53 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Surgery, 17 papers in Hepatology and 15 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Kiyoshi Ohara's work include Hepatocellular Carcinoma Treatment and Prognosis (17 papers), Endometrial and Cervical Cancer Treatments (13 papers) and Radiation Therapy and Dosimetry (11 papers). Kiyoshi Ohara is often cited by papers focused on Hepatocellular Carcinoma Treatment and Prognosis (17 papers), Endometrial and Cervical Cancer Treatments (13 papers) and Radiation Therapy and Dosimetry (11 papers). Kiyoshi Ohara collaborates with scholars based in Japan and United States. Kiyoshi Ohara's co-authors include Shinji Sugahara, Yasuyuki Akine, Koichi Tokuuye, Kenji Kagei, Masaharu Hata, Tetsuo Inada, Toshiyuki Okumura, Takayuki Hashimoto, Masayoshi Akisada and Takehiko Mori and has published in prestigious journals such as Cancer, International Journal of Radiation Oncology*Biology*Physics and Obstetrics and Gynecology.

In The Last Decade

Kiyoshi Ohara

53 papers receiving 1.9k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kiyoshi Ohara Japan 24 1.2k 714 630 416 374 53 1.9k
Shinji Sugahara Japan 29 1.7k 1.4× 870 1.2× 567 0.9× 858 2.1× 360 1.0× 104 2.6k
Florian Sterzing Germany 28 1.7k 1.4× 1.1k 1.6× 494 0.8× 99 0.2× 1.1k 3.1× 101 2.5k
Masahiro Kenjo Japan 20 583 0.5× 379 0.5× 443 0.7× 251 0.6× 309 0.8× 77 1.2k
Shaakir Hasan United States 20 611 0.5× 349 0.5× 371 0.6× 127 0.3× 261 0.7× 125 1.4k
Yoshio Hishikawa Japan 28 1.6k 1.3× 710 1.0× 815 1.3× 182 0.4× 358 1.0× 105 2.2k
Bernhard Rhein Germany 23 1.3k 1.1× 1.2k 1.7× 454 0.7× 245 0.6× 833 2.2× 49 2.2k
Shinroku Morita Japan 18 877 0.7× 550 0.8× 223 0.4× 106 0.3× 297 0.8× 36 1.4k
Marco Maccauro Italy 22 449 0.4× 177 0.2× 413 0.7× 689 1.7× 567 1.5× 81 1.9k
Jian Z. Wang United States 29 1.8k 1.5× 1.3k 1.8× 459 0.7× 125 0.3× 1.1k 2.8× 51 2.9k
Tiziana Comito Italy 27 1.1k 1.0× 961 1.3× 636 1.0× 760 1.8× 673 1.8× 96 2.4k

Countries citing papers authored by Kiyoshi Ohara

Since Specialization
Citations

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

Fields of papers citing papers by Kiyoshi Ohara

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kiyoshi Ohara

This figure shows the co-authorship network connecting the top 25 collaborators of Kiyoshi Ohara. A scholar is included among the top collaborators of Kiyoshi Ohara 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 Kiyoshi Ohara. Kiyoshi Ohara 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.
Mizumoto, Masashi, Koichi Tokuuye, Shinji Sugahara, et al.. (2008). Proton Beam Therapy for Hepatocellular Carcinoma Adjacent to the Porta Hepatis. International Journal of Radiation Oncology*Biology*Physics. 71(2). 462–467. 69 indexed citations
2.
3.
Hashimoto, Takayuki, Koichi Tokuuye, Nobuyoshi Fukumitsu, et al.. (2006). Repeated proton beam therapy for hepatocellular carcinoma. International Journal of Radiation Oncology*Biology*Physics. 65(1). 196–202. 69 indexed citations
4.
Hata, Masaharu, Koichi Tokuuye, Shinji Sugahara, et al.. (2005). Proton beam therapy for hepatocellular carcinoma with portal vein tumor thrombus. Cancer. 104(4). 794–801. 84 indexed citations
5.
Ohara, Kiyoshi, Akinori Oki, Yumiko Tanaka, et al.. (2005). Early determination of uterine cervical squamous cell carcinoma radioresponse identifies high- and low-response tumors. International Journal of Radiation Oncology*Biology*Physics. 64(4). 1179–1182. 16 indexed citations
6.
Mizumoto, Masashi, Takayuki Hashimoto, Hiroshi Igaki, et al.. (2004). PROTON BEAM THERAPY FOR LARGE HEPATOCELLULAR CARCINOMA. 16(3). 177–182. 2 indexed citations
7.
Igaki, Hiroshi, Koichi Tokuuye, Toshiyuki Okumura, et al.. (2004). Clinical results of proton beam therapy for skull base chordoma. International Journal of Radiation Oncology*Biology*Physics. 60(4). 1120–1126. 125 indexed citations
8.
Tokuuye, Koichi, Yasuyuki Akine, Kenji Kagei, et al.. (2004). Proton Therapy for Head and Neck Malignancies at Tsukuba. Strahlentherapie und Onkologie. 180(2). 96–101. 29 indexed citations
9.
Yusa, Hiroshi, Hiroshi Yoshida, Masayuki Noguchi, & Kiyoshi Ohara. (2003). Volumetric and histologic responses to radiotherapy or radiochemotherapy of metastatic cervical lymph nodes of oral squamous cell carcinoma. Journal of Oral and Maxillofacial Surgery. 61(8). 904–908. 1 indexed citations
10.
Kagei, Kenji, Koichi Tokuuye, Toshiyuki Okumura, et al.. (2003). Long-term results of proton beam therapy for carcinoma of the uterine cervix. International Journal of Radiation Oncology*Biology*Physics. 55(5). 1265–1271. 35 indexed citations
11.
Ohara, Kiyoshi, Hideo Tatsuzaki, Tatsuya Oda, et al.. (2002). Utility of serum CA 19-9 monitoring in preoperative radiotherapy for pancreatic cancer.. PubMed. 48(39). 859–63. 12 indexed citations
12.
Ohara, Kiyoshi, et al.. (2002). Exfoliative tumor clearance following radiotherapy estimated by comparing radioresponse between primary esophageal cancer and its lymph node metastasis.. PubMed. 48(42). 1648–51. 1 indexed citations
13.
Miyanaga, Naoto, Hideyuki Akaza, Toshiyuki Okumura, et al.. (2000). A bladder preservation regimen using intra‐arterial chemotherapy and radiotherapy for invasive bladder cancer: A prospective study. International Journal of Urology. 7(2). 41–48. 34 indexed citations
14.
Mori, Harushi, et al.. (2000). Early Radiation Effects on the Liver Demonstrated on Superparamagnetic Iron Oxide-Enhanced T1-Weighted MRI. Journal of Computer Assisted Tomography. 24(4). 648–651. 4 indexed citations
15.
Todoroki, Takeshi, Kiyoshi Ohara, Toru Kawamoto, et al.. (2000). Benefits of adjuvant radiotherapy after radical resection of locally advanced main hepatic duct carcinoma. International Journal of Radiation Oncology*Biology*Physics. 46(3). 581–587. 146 indexed citations
16.
Ohara, Kiyoshi, Hideo Tatsuzaki, Hiroshi Fuji, et al.. (1998). Radioresponse of Thymomas Verified with Histologic Response. Acta Oncologica. 37(5). 471–474. 9 indexed citations
17.
Ohara, Kiyoshi, Hiroshi Tsuji, Myo Min, et al.. (1996). Clearance of parenchymal tumors following radiotherapy: analysis of hepatocellular carcinomas treated by proton beams. Radiotherapy and Oncology. 41(3). 233–236. 13 indexed citations
18.
Tsuji, Hiroshi, Tetsuo Inada, Akira Maruhashi, et al.. (1993). Clinical results of fractionated proton therapy. International Journal of Radiation Oncology*Biology*Physics. 25(1). 49–60. 79 indexed citations
19.
Ohtani, Mikinobu, et al.. (1991). INTRA-ARTERIAL CISPLATIN AND CONCURRENT RADIATION FOR INVASIVE BLADDER CANCER. The Japanese Journal of Urology. 82(10). 1583–1587. 2 indexed citations
20.
Ohara, Kiyoshi, Toshiyuki Okumura, Masayoshi Akisada, et al.. (1989). Irradiation synchronized with respiration gate. International Journal of Radiation Oncology*Biology*Physics. 17(4). 853–857. 346 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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