S Hirai

448 total citations
23 papers, 315 citations indexed

About

S Hirai is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Neurology. According to data from OpenAlex, S Hirai has authored 23 papers receiving a total of 315 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Surgery, 9 papers in Pulmonary and Respiratory Medicine and 7 papers in Neurology. Recurrent topics in S Hirai's work include Intracranial Aneurysms: Treatment and Complications (4 papers), Vascular Malformations Diagnosis and Treatment (4 papers) and Aortic Disease and Treatment Approaches (2 papers). S Hirai is often cited by papers focused on Intracranial Aneurysms: Treatment and Complications (4 papers), Vascular Malformations Diagnosis and Treatment (4 papers) and Aortic Disease and Treatment Approaches (2 papers). S Hirai collaborates with scholars based in Japan. S Hirai's co-authors include Junichi Ono, Nahoko Komatsu, T. Sato, Naoto Yamanouchi, Hiroki Sekine, Kazuhiro Kodama, Tadashi Sakamoto, Shinichiro Okada, Hiroyuki Miura and Osamu Uchida and has published in prestigious journals such as Thorax, The Annals of Thoracic Surgery and American Journal of Neuroradiology.

In The Last Decade

S Hirai

20 papers receiving 304 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
S Hirai Japan	9	157	97	44	43	24	23	315
P. Dommes Germany	10	129 0.8×	89 0.9×	40 0.9×	14 0.3×	9 0.4×	12	610
J O Balzer Germany	6	137 0.9×	83 0.9×	69 1.6×	21 0.5×	10 0.4×	9	328
Eric Goldstein United States	9	92 0.6×	32 0.3×	45 1.0×	20 0.5×	23 1.0×	48	275
W. Reeker Germany	10	76 0.5×	54 0.6×	40 0.9×	43 1.0×	26 1.1×	17	412
C. C. Tijssen Netherlands	11	72 0.5×	35 0.4×	43 1.0×	13 0.3×	6 0.3×	26	342
Gökhan Özdemir Türkiye	8	101 0.6×	76 0.8×	22 0.5×	46 1.1×	21 0.9×	28	291
S H Foo United States	11	110 0.7×	56 0.6×	87 2.0×	54 1.3×	17 0.7×	12	368
Clara Poon China	9	76 0.5×	37 0.4×	30 0.7×	50 1.2×	6 0.3×	11	305
Toshimasa Sakakibara Japan	8	95 0.6×	45 0.5×	72 1.6×	23 0.5×	9 0.4×	16	340
Ryan A. Grant United States	12	179 1.1×	145 1.5×	34 0.8×	105 2.4×	17 0.7×	22	474

Countries citing papers authored by S Hirai

Since Specialization

Citations

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

Fields of papers citing papers by S Hirai

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of S Hirai

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

Moriwaki, Toshikazu, Takeshi Kajiwara, Toshihiko Matsumoto, et al.. (2014). Survival analysis of platinum-refractory patients with advanced esophageal cancer treated with docetaxel or best supportive care alone: a retrospective study. Diseases of the Esophagus. 27(8). 737–743. 6 indexed citations

Hirai, S, et al.. (2011). [Surgical resection of a pulmonary pleomorphic carcinoma involving the azygos vein].. PubMed. 64(5). 394–7.

Ishikawa, Arimi, et al.. (2010). A patient with isolated adrenocorticotropin deficiency presenting with repetitive oesophageal ulcer and stenosis. BMJ Case Reports. 2010. bcr1020103384–bcr1020103384.

Yamanouchi, Naoto, Shinichi Okada, Kazuhiro Kodama, et al.. (2009). Effects of MRI abnormalities on WAIS-R performance in solvent abusers. Acta Neurologica Scandinavica. 96(1). 34–39. 10 indexed citations

Hirai, S, et al.. (2004). [Prospective study of systemic inflammatory response syndrome after cardiac surgery as a effective indicator].. PubMed. 57(6). 455–8. 2 indexed citations

Hirai, S, et al.. (2004). Embolization of the Middle Meningeal Artery for Refractory Chronic Subdural Haematoma. Interventional Neuroradiology. 10(2_suppl). 101–104. 47 indexed citations

Hirai, S, et al.. (2002). Potential role of the anterior spinal artery in preventing propagation of thrombus in a therapeutically occluded vertebral artery: angiographic studies before and after endovascular treatment. Neuroradiology. 44(4). 347–354. 16 indexed citations

Hirai, S, Junichi Ono, Masaru Odaki, et al.. (2001). Treatment of Asymptomatic Unruptured Intracranial Aneurysms. Interventional Neuroradiology. 7(1_suppl). 61–64. 1 indexed citations

Mine, Seiichiro, S Hirai, Junichi Ono, & Akira Yamaura. (2000). Risk factors for poor outcome of untreated arteriovenous malformation. Journal of Clinical Neuroscience. 7(6). 503–506. 24 indexed citations

10.

Hirai, S, et al.. (2000). [A case of saccular aneurysm of the coronary artery post PTCA].. PubMed. 53(6). 457–9. 1 indexed citations

11.

Hirai, S, et al.. (2000). Minimally invasive direct coronary artery bypass grafting using the saphenous vein in redo CABG.. PubMed. 6(2). 134–6.

12.

Hirai, S, Seiichiro Mine, E Kobayashi, Iwao Yamakami, & Akira Yamaura. (1999). Angioarchitecture Predicting Hemorrhage in Cerebral Arteriovenous Malformations. Interventional Neuroradiology. 5(1_suppl). 157–160. 1 indexed citations

13.

Kobayashi, E, et al.. (1999). [Stenting for dissecting restenosis of the subclavian artery after balloon angioplasty: a case report].. PubMed. 27(4). 365–9. 2 indexed citations

14.

Hirai, S, et al.. (1998). Assessment of a new silicone tri-leaflet valve seamlessly assembled with blood chamber for a low-cost ventricular assist device.. PubMed. 47(2). 47–55. 1 indexed citations

15.

Sueda, Takuya, Katsuhiko Imai, Kazumasa Orihashi, et al.. (1998). Efficacy of a left atrial procedure for treatment of chronic atrial fibrillation in elderly patients.. PubMed. 4(4). 201–4. 3 indexed citations

16.

Tanaka, Makoto, Susumu Kondo, Keishi Okamoto, & S Hirai. (1997). [Cerebral perfusion and oxygen metabolism in Parkinson's disease: positron emission tomographic study using oxygen-15-labeled CO2 and O2].. PubMed. 55(1). 218–21. 8 indexed citations

17.

Sueda, Taijiro, Kenji Okada, S Hirai, et al.. (1997). Right atrial separation for chronic atrial fibrillation with atrial septal defects. The Annals of Thoracic Surgery. 64(2). 541–542. 5 indexed citations

18.

Miura, Hiroyuki, et al.. (1997). Spontaneous haemothorax associated with von Recklinghausen's disease: review of occurrence in Japan. Thorax. 52(6). 577–578. 60 indexed citations

19.

Yamanouchi, Naoto, Shinichiro Okada, Kazuhiro Kodama, et al.. (1995). White matter changes caused by chronic solvent abuse.. American Journal of Neuroradiology. 16(8). 1643–9. 101 indexed citations

20.

Kageshita, Toshiro, S Hirai, Akira Yoshii, et al.. (1992). Ganglioside, adhesion molecule, and HLA antigen expression in basal cell carcinoma lesions.. PubMed. 52(11). 3201–7. 7 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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