Masaaki Shojima

2.1k total citations · 1 hit paper
80 papers, 1.3k citations indexed

About

Masaaki Shojima is a scholar working on Neurology, Pulmonary and Respiratory Medicine and Surgery. According to data from OpenAlex, Masaaki Shojima has authored 80 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 63 papers in Neurology, 28 papers in Pulmonary and Respiratory Medicine and 19 papers in Surgery. Recurrent topics in Masaaki Shojima's work include Intracranial Aneurysms: Treatment and Complications (54 papers), Vascular Malformations Diagnosis and Treatment (35 papers) and Cerebrovascular and Carotid Artery Diseases (22 papers). Masaaki Shojima is often cited by papers focused on Intracranial Aneurysms: Treatment and Complications (54 papers), Vascular Malformations Diagnosis and Treatment (35 papers) and Cerebrovascular and Carotid Artery Diseases (22 papers). Masaaki Shojima collaborates with scholars based in Japan, United States and France. Masaaki Shojima's co-authors include Akio Morita, M. Oshima, Takaaki Kirino, Kiyoshi Takagi, Ryo Torii, Kazuhiro Katada, Motoharu Hayakawa, Nobuhito Saito, Taichi Kin and Hirofumi Nakatomi and has published in prestigious journals such as SHILAP Revista de lepidopterología, Stroke and Journal of neurosurgery.

In The Last Decade

Masaaki Shojima

70 papers receiving 1.3k 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.

Magnitude and Role of Wall Shear Stress on Cerebral Aneurysm

2004 628 citations Masaaki Shojima, M. Oshima et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Masaaki Shojima Japan	16	1.0k	601	230	200	146	80	1.3k
Motoharu Hayakawa Japan	16	1.3k 1.3×	837 1.4×	170 0.7×	239 1.2×	171 1.2×	79	1.7k
Vincent M. Tutino United States	18	1.3k 1.3×	1.0k 1.7×	120 0.5×	315 1.6×	185 1.3×	91	1.9k
Hasan Yilmaz Switzerland	24	1.2k 1.1×	675 1.1×	355 1.5×	424 2.1×	70 0.5×	53	1.7k
Jonathan L. Brisman United States	18	1.2k 1.1×	543 0.9×	139 0.6×	280 1.4×	72 0.5×	41	1.5k
Markus Tremmel United States	10	1.6k 1.5×	1.2k 1.9×	106 0.5×	88 0.4×	183 1.3×	13	1.8k
Ding Ma United States	11	890 0.9×	672 1.1×	113 0.5×	48 0.2×	85 0.6×	15	1.1k
Juan Macho Spain	20	587 0.6×	593 1.0×	298 1.3×	483 2.4×	36 0.2×	58	1.3k
Marieke E.S. Sprengers Netherlands	23	1.6k 1.6×	919 1.5×	115 0.5×	263 1.3×	75 0.5×	43	1.8k
Masayuki Ezura Japan	21	1.1k 1.0×	493 0.8×	123 0.5×	318 1.6×	120 0.8×	112	1.4k
Joon K. Song United States	23	2.1k 2.0×	1.1k 1.9×	208 0.9×	535 2.7×	88 0.6×	58	2.5k

Countries citing papers authored by Masaaki Shojima

Since Specialization

Citations

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

Fields of papers citing papers by Masaaki Shojima

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masaaki Shojima

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

Nakajima, Koji, Chiaki Horii, Akitoshi Ogawa, et al.. (2025). Association between vertebral fractures and brain volume: insights from a community cohort study. Osteoporosis International. 36(4). 627–636.

Nakajima, Koji, Akitoshi Ogawa, Takahiro Osada, et al.. (2025). Investigation of brain volume changes associated with aging: Results from the fourth research on osteoarthritis/osteoporosis against disability survey. Geriatrics and gerontology international. 25(2). 279–286.

Hanakita, Shunya, Masahiro Shin, Hirotaka Hasegawa, et al.. (2023). Endoscopic Extended Transsphenoidal Surgery Aiming for Radical Resection of Skull Base Tumors Involving Cavernous Sinus: Assessment of Resectability and Risks of Complications. Operative Neurosurgery. 25(3). 260–268.

Goto, Yoshiaki, Yuki Inoue, Yuki Nakamura, et al.. (2023). Efficacy of a Novel Augmented Reality Navigation System Using 3D Computer Graphic Modeling in Endoscopic Transsphenoidal Surgery for Sellar and Parasellar Tumors. Cancers. 15(7). 2148–2148. 10 indexed citations

Koizumi, Satoshi, Masaaki Shojima, Takahiro Ota, et al.. (2023). Long‐Term Stability of Patients Undergoing Endovascular Parent Artery Occlusion of Their Intracranial Artery. SHILAP Revista de lepidopterología. 3(6). e000968–e000968. 1 indexed citations

Hirano, Yudai, Hideaki Ono, Masaaki Shojima, et al.. (2023). Orbital Arteriovenous Fistula Causing Only Visual Impairment due to Compression of the Optic Nerve by the Dilated Superior Ophthalmic Vein. Asian Journal of Neurosurgery. 18(3). 679–683.

Koizumi, Satoshi, Masaaki Shojima, Yuki Shinya, et al.. (2022). Risk Factors of Brain Arteriovenous Malformation Embolization as Adjunctive Therapy: Single-Center 10-Year Experience. World Neurosurgery. 167. e1448–e1454. 1 indexed citations

Uno, Takeshi, et al.. (2022). Anatomical Factors That Impede Using the Radial Artery Approach for Carotid Artery Revascularization. World Neurosurgery. 160. e398–e403. 2 indexed citations

Shin, Masahiro, et al.. (2022). Endoscopic Extended Transclival Approach for Lower Clival Meningioma. World Neurosurgery. 164. 117–117. 3 indexed citations

10.

Koizumi, Satoshi, Masaaki Shojima, Shogo Dofuku, et al.. (2021). Neuroendovascular Training Using Multisource Video-Recording System in a Hybrid Operating Room. World Neurosurgery. 154. e320–e324. 1 indexed citations

11.

Shojima, Masaaki, Yoshihiro Okamoto, Makoto Ohta, et al.. (2020). Preliminary Study of Eye-Tracking During the Coil Insertion Task in a Silastic Model of Intracranial Aneurysms. World Neurosurgery. 139. e827–e835. 4 indexed citations

12.

Zhang, Mingzi, Simon Tupin, Hitomi Anzai, et al.. (2020). Implementation of computer simulation to assess flow diversion treatment outcomes: systematic review and meta-analysis. Journal of NeuroInterventional Surgery. 13(2). 164–170. 16 indexed citations

13.

Koizumi, Satoshi, Masaaki Shojima, Osamu Ishikawa, et al.. (2020). S-shaped distal access catheter supported microcatheter navigation into the lenticulostriate artery feeders of brain arteriovenous malformations. Interventional Neuroradiology. 26(6). 725–732. 3 indexed citations

14.

Hasegawa, Hirotaka, Shunya Hanakita, Masahiro Shin, et al.. (2018). A Comprehensive Study of Symptomatic Late Radiation-Induced Complications After Radiosurgery for Brain Arteriovenous Malformation: Incidence, Risk Factors, and Clinical Outcomes. World Neurosurgery. 116. e556–e565. 14 indexed citations

15.

Hasegawa, Hirotaka, Shunya Hanakita, Masahiro Shin, et al.. (2018). Integrating 3D Rotational Angiography into Gamma Knife Planning. American Journal of Neuroradiology. 39(10). 1867–1870. 5 indexed citations

16.

Hasegawa, Hirotaka, Shunya Hanakita, Masahiro Shin, et al.. (2017). Does Advanced Age Affect the Outcomes of Stereotactic Radiosurgery for Cerebral Arteriovenous Malformation?. World Neurosurgery. 109. e715–e723. 10 indexed citations

17.

Hasegawa, Hirotaka, Shunya Hanakita, Masahiro Shin, et al.. (2016). Long-Term Outcomes of Single-Session Stereotactic Radiosurgery for Cerebellar Arteriovenous Malformation, with a Median Follow-Up of 10 Years. World Neurosurgery. 98. 314–322. 8 indexed citations

18.

Morita, Akio, Toshikazu Kimura, Masaaki Shojima, Tetsuro Sameshima, & Tetsuhiro Nishihara. (2010). Unruptured Intracranial Aneurysms: Current Perspectives on the Origin and Natural Course, and Quest for Standards in the Management Strategy. Neurologia medico-chirurgica. 50(9). 777–787. 17 indexed citations

19.

Shojima, Masaaki, S Nemoto, Akio Morita, et al.. (2009). Protected Endovascular Revascularization of Subacute and Chronic Total Occlusion of the Internal Carotid Artery. American Journal of Neuroradiology. 31(3). 481–486. 47 indexed citations

20.

Shojima, Masaaki, M. Oshima, Kiyoshi Takagi, et al.. (2006). Numerical Simulation of the Intra-Aneurysmal Flow Dynamics. Interventional Neuroradiology. 12(1_suppl). 49–52. 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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