Hiroaki Koga

2.1k total citations
94 papers, 1.5k citations indexed

About

Hiroaki Koga is a scholar working on Surgery, Pathology and Forensic Medicine and Electrical and Electronic Engineering. According to data from OpenAlex, Hiroaki Koga has authored 94 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Surgery, 20 papers in Pathology and Forensic Medicine and 14 papers in Electrical and Electronic Engineering. Recurrent topics in Hiroaki Koga's work include Spine and Intervertebral Disc Pathology (20 papers), Cervical and Thoracic Myelopathy (13 papers) and Spinal Fractures and Fixation Techniques (10 papers). Hiroaki Koga is often cited by papers focused on Spine and Intervertebral Disc Pathology (20 papers), Cervical and Thoracic Myelopathy (13 papers) and Spinal Fractures and Fixation Techniques (10 papers). Hiroaki Koga collaborates with scholars based in Japan, United States and United Kingdom. Hiroaki Koga's co-authors include Setsuro Komiya, Takashi Sakou, Shunji Matsunaga, Makio Yamaga, Yoshihiro Yoshimura, Sayuri Shimazu, Kazunori Yone, Ai Shiraishi, Takahiro Bise and Seiko Harata and has published in prestigious journals such as Spine, The American Journal of Human Genetics and Journal of Bone and Mineral Research.

In The Last Decade

Hiroaki Koga

83 papers receiving 1.4k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Hiroaki Koga Japan 20 662 463 288 236 118 94 1.5k
Yoshihito Sakai Japan 30 1.8k 2.8× 1.2k 2.7× 409 1.4× 73 0.3× 66 0.6× 142 2.9k
Norlisah Ramli Malaysia 22 244 0.4× 213 0.5× 99 0.3× 83 0.4× 122 1.0× 123 1.5k
Roman Guggenberger Switzerland 30 836 1.3× 282 0.6× 100 0.3× 247 1.0× 88 0.7× 111 2.6k
Hwan‐Mo Lee South Korea 35 3.1k 4.6× 2.8k 6.0× 125 0.4× 210 0.9× 120 1.0× 203 4.2k
Timothy J. Martin United States 23 841 1.3× 69 0.1× 164 0.6× 98 0.4× 30 0.3× 79 1.5k
Yu‐Hsun Wang Taiwan 18 157 0.2× 57 0.1× 166 0.6× 267 1.1× 124 1.1× 154 1.3k
Salvatore Gitto Italy 23 659 1.0× 61 0.1× 237 0.8× 272 1.2× 54 0.5× 106 1.9k
Michael Cassidy United Kingdom 22 360 0.5× 196 0.4× 132 0.5× 105 0.4× 95 0.8× 68 2.0k
Naoto Shiba Japan 25 1.0k 1.5× 111 0.2× 416 1.4× 113 0.5× 152 1.3× 148 2.2k
T. Duckworth United Kingdom 23 444 0.7× 59 0.1× 231 0.8× 138 0.6× 66 0.6× 51 1.9k

Countries citing papers authored by Hiroaki Koga

Since Specialization
Citations

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

Fields of papers citing papers by Hiroaki Koga

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hiroaki Koga

This figure shows the co-authorship network connecting the top 25 collaborators of Hiroaki Koga. A scholar is included among the top collaborators of Hiroaki 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 Hiroaki Koga. Hiroaki 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.
2.
Liu, Yu‐Cheng, Hiroaki Koga, Ching‐Yu Lee, et al.. (2023). Ethnic Differences in Western and Asian Sacroiliac Joint Anatomy for Surgical Planning of Minimally Invasive Sacroiliac Joint Fusion. Diagnostics. 13(5). 883–883.
3.
Yoshimura, Yoshihiro, Hidetaka Wakabayashi, Takahiro Bise, et al.. (2018). Sarcopenia is associated with worse recovery of physical function and dysphagia and a lower rate of home discharge in Japanese hospitalized adults undergoing convalescent rehabilitation. Nutrition. 61. 111–118. 163 indexed citations
4.
Yoshimura, Yoshihiro, Makio Yamaga, & Hiroaki Koga. (2018). Systemic inflammation and sarcopenia in recovery stage of stroke: The negative impact on functional rehabilitation outcomes. Annals of Physical and Rehabilitation Medicine. 61. e63–e63. 2 indexed citations
5.
Koga, Hiroaki, et al.. (2011). Conservative treatment with hyperbaric oxygen therapy for cervical spondylotic amyotrophy. Spinal Cord. 49(6). 749–753. 6 indexed citations
6.
Koga, Hiroaki, et al.. (2009). L2-L3 Flexion-Distraction Injury Treated by Posterior Fusion Using Ultra-High Molecular Weight Polyethylene Tape in a 7-Year-Old Boy. Pediatric Neurosurgery. 45(1). 73–77. 1 indexed citations
7.
Matsunaga, Shunji, et al.. (2008). Ossification of the posterior longitudinal ligament in dizygotic twins with schizophrenia: a case report. Modern Rheumatology. 18(3). 277–280. 5 indexed citations
8.
Koga, Hiroaki, et al.. (2007). Dorsally Sequestered Cervical Disc Herniation. Spine. 32(26). E837–E840. 7 indexed citations
9.
Wada, Chikamune, et al.. (2005). Swing Condition Designs and Human Feelings by Using Swing Chair System Synchronized with Moving Picture Image. 105(106). 79–84.
10.
Koga, Hiroaki, Kazunori Yone, Takuya Yamamoto, & Setsuro Komiya. (2003). . Spine. 28(11). E212–E216. 4 indexed citations
11.
Koga, Hiroaki, et al.. (2003). Percutaneous CT-guided Puncture and Steroid Injection for the Treatment of Lumbar Discal Cyst: A Case Report. Spine. 28(11). E212–E216. 49 indexed citations
12.
Koga, Hiroaki, et al.. (2003). Analysis of a CMC (Common Mode Choke) Insertion Loss and Common Mode Current Characteristics in a Balanced Transmission Line with a CMC Inserted. IEICE Transactions on Communications. 86(7). 2162–2170. 2 indexed citations
13.
Matsunaga, Shunji, et al.. (2001). Quality of Life in Elderly Patients With Ossification of the Posterior Longitudinal Ligament. Spine. 26(5). 494–498. 14 indexed citations
14.
Koga, Hiroaki, et al.. (2001). Kansei Aided Font Selection and Character Arrangement Technique. Transactions of the Institute of Systems Control and Information Engineers. 14(12). 593–600. 1 indexed citations
15.
Maeda, Shingo, Hiroaki Koga, S. Matsunaga, et al.. (2001). Gender-specific haplotype association of collagen α2 (XI) gene in ossification of the posterior longitudinal ligament of the spine. Journal of Human Genetics. 46(1). 1–4. 53 indexed citations
16.
Matsunaga, Shunji, et al.. (2000). Results of a Longer Than 10-Year Follow-Up of Patients With Rheumatoid Arthritis Treated by Occipitocervical Fusion. Spine. 25(14). 1749–1753. 50 indexed citations
17.
Yamamoto, Naoki, et al.. (2000). Electromagnetic Noise Characteristics between Two Unshielded Twisted-Wire Pair for the Number of Twist.. 100(49). 1–6. 1 indexed citations
18.
Koga, Hiroaki, et al.. (2000). A study on Video Transcribing Method Intending the Amplification of Forcible Kansei.. The Journal of The Institute of Image Information and Television Engineers. 54(1). 131–134. 3 indexed citations
19.
Koga, Hiroaki, Takashi Sakou, Eiji Taketomi, et al.. (1998). Genetic Mapping of Ossification of the Posterior Longitudinal Ligament of the Spine. The American Journal of Human Genetics. 62(6). 1460–1467. 117 indexed citations
20.
Koga, Hiroaki, et al.. (1979). Lightning Surge Waves Induced on Overhead Lines. IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences. 216–223. 28 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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