Hajime Ichikawa

3.6k total citations
185 papers, 2.5k citations indexed

About

Hajime Ichikawa is a scholar working on Surgery, Epidemiology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Hajime Ichikawa has authored 185 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 96 papers in Surgery, 93 papers in Epidemiology and 69 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Hajime Ichikawa's work include Congenital Heart Disease Studies (86 papers), Cardiac Structural Anomalies and Repair (58 papers) and Mechanical Circulatory Support Devices (35 papers). Hajime Ichikawa is often cited by papers focused on Congenital Heart Disease Studies (86 papers), Cardiac Structural Anomalies and Repair (58 papers) and Mechanical Circulatory Support Devices (35 papers). Hajime Ichikawa collaborates with scholars based in Japan, United States and Sweden. Hajime Ichikawa's co-authors include Yoshiki Sawa, Koji Kagisaki, Isao Shiraishi, Hikaru Matsuda, Takaya Hoashi, Kenichi Kurosaki, Toshikatsu Yagihara, Atsuhiro Saito, Yasufumi Kaneda and Toshihiro Ohata and has published in prestigious journals such as Circulation, Journal of Clinical Investigation and SHILAP Revista de lepidopterología.

In The Last Decade

Hajime Ichikawa

173 papers receiving 2.4k citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
Hajime Ichikawa 1.2k 902 682 643 508 185 2.5k
Armin Welz 1.6k 1.3× 917 1.0× 1.8k 2.7× 853 1.3× 351 0.7× 145 3.6k
Hitoshi Yaku 1.5k 1.2× 667 0.7× 1.4k 2.1× 709 1.1× 560 1.1× 263 2.8k
Bari Murtuza 1.2k 1.0× 436 0.5× 638 0.9× 346 0.5× 263 0.5× 55 2.3k
T. Deuse 1.9k 1.6× 310 0.3× 697 1.0× 460 0.7× 679 1.3× 184 4.1k
John D. Mannion 2.2k 1.8× 577 0.6× 2.3k 3.4× 397 0.6× 345 0.7× 51 3.9k
Isao Shiraishi 1.1k 0.9× 883 1.0× 1.1k 1.6× 618 1.0× 276 0.5× 144 2.8k
Koichi Tabayashi 791 0.6× 283 0.3× 599 0.9× 881 1.4× 190 0.4× 146 2.8k
Deborah Vela 1.1k 0.9× 303 0.3× 606 0.9× 236 0.4× 509 1.0× 68 2.5k
Dietrich E. Birnbaum 851 0.7× 270 0.3× 696 1.0× 574 0.9× 636 1.3× 87 1.9k
Arnt E. Fiane 1.4k 1.1× 327 0.4× 988 1.4× 338 0.5× 710 1.4× 134 2.6k

Countries citing papers authored by Hajime Ichikawa

Since Specialization
Citations

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

Fields of papers citing papers by Hajime Ichikawa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hajime Ichikawa

This figure shows the co-authorship network connecting the top 25 collaborators of Hajime Ichikawa. A scholar is included among the top collaborators of Hajime Ichikawa 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 Hajime Ichikawa. Hajime Ichikawa 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.
Ichikawa, Hajime, et al.. (2025). Impact of a novel respiratory motion reduction block for myocardial perfusion SPECT image quality: a phantom study. Radiological Physics and Technology. 18(2). 376–383.
2.
Kasahara, Shingo, et al.. (2024). Early Clinical Results for a New Self-Organizing Hybrid Fabric in Congenital Cardiac Surgery. Annals of Thoracic Surgery Short Reports. 2(4). 804–809.
3.
Taniguchi, Yuki, et al.. (2024). Comparison of single- and multi-isocenter planning with Dynamic WaveArc for multiple brain metastases. Journal of Radiation Research. 66(1). 74–81. 1 indexed citations
4.
Ohira, Suguru, Kenji Okumura, Rahim Hirani, et al.. (2023). Use of Donor Hearts ≥50 Years Old for Septuagenarians in Heart Transplantation. The Annals of Thoracic Surgery. 116(3). 580–586. 2 indexed citations
5.
Tanimoto, Kazuki, et al.. (2023). Long-term outcomes of functional single ventricles associated with heterotaxy syndrome. European Journal of Cardio-Thoracic Surgery. 64(6). 1 indexed citations
6.
Fukushima, Keizo, Tomoyuki Mizuno, Hajime Ichikawa, et al.. (2023). Model‐Informed Vancomycin Dosing Optimization to Address Delayed Renal Maturation in Infants and Young Children with Critical Congenital Heart Disease. Clinical Pharmacology & Therapeutics. 115(2). 239–247. 1 indexed citations
7.
Okuda, Koichi, et al.. (2021). Validation of Simulation Codes for Nuclear Imaging Using Digital Phantoms. Japanese Journal of Radiological Technology. 77(1). 41–47. 3 indexed citations
8.
Yasukawa, Takashi, Takaya Hoashi, Kenta Imai, et al.. (2021). The reduced left ventricular stroke volume does not fully recover after pulmonary valve replacement in patients with repaired tetralogy of Fallot. European Journal of Cardio-Thoracic Surgery. 60(3). 526–533. 2 indexed citations
9.
Ichikawa, Hajime, et al.. (2020). A Nationwide Survey on Additional Scan in Nuclear Medicine Imaging. Japanese Journal of Radiological Technology. 76(3). 285–294. 1 indexed citations
10.
Yasukawa, Takashi, Takaya Hoashi, Masataka Kitano, et al.. (2020). Interstage management of pulmonary blood flow after the Norwood procedure with right ventricle-to-pulmonary artery conduit. European Journal of Cardio-Thoracic Surgery. 58(3). 551–558. 2 indexed citations
11.
Ichikawa, Hajime, et al.. (2019). Usefulness of Post-processing Scatter Correction in Portable Abdominal Radiography Using a Low Ratio Anti-scatter Grid. Japanese Journal of Radiological Technology. 75(9). 885–891.
12.
Miyazaki, Aya, Jun Negishi, Yosuke Hayama, et al.. (2019). Evaluating the response to cardiac resynchronization therapy performed with a new ventricular morphology-based strategy for congenital heart disease. Heart and Vessels. 34(8). 1340–1350. 9 indexed citations
13.
Sugimoto, Katsuya, Yoshihiro Nishimura, Hajime Ichikawa, et al.. (2017). Development of Body Phantom for Evaluation of Appropriate Administered Radioactivities and Image Quality on <sup>99m</sup>Tc-DMSA Scintigraphy in Pediatric Nuclear Medicine. Japanese Journal of Radiological Technology. 73(12). 1197–1206.
14.
Ichikawa, Hajime, et al.. (2016). Examination for Effectiveness of Scatter Correction in Portable Chest Radiography. Japanese Journal of Radiological Technology. 72(12). 1207–1215. 4 indexed citations
15.
Ichikawa, Hajime, et al.. (2015). Development of a Novel Body Phantom with Bone Equivalent Density for Evaluation of Bone SPECT. Japanese Journal of Radiological Technology. 71(12). 1235–1240. 8 indexed citations
16.
Sakaguchi, Heima, Aya Miyazaki, Osamu Yamada, et al.. (2015). Cardiac Resynchronization Therapy for Various Systemic Ventricular Morphologies in Patients With Congenital Heart Disease. Circulation Journal. 79(3). 649–655. 21 indexed citations
17.
Tadokoro, Naoki, Takaya Hoashi, Koji Kagisaki, et al.. (2015). Clinical Features and Surgical Outcomes of Coronary Sinus Orifice Atresia. Pediatric Cardiology. 37(2). 387–391. 1 indexed citations
18.
Hoashi, Takaya, Satoshi Yazaki, Koji Kagisaki, et al.. (2014). Management of ostium secundum atrial septal defect in the era of percutaneous trans-catheter device closure: 7-Year experience at a single institution. Journal of Cardiology. 65(5). 418–422. 13 indexed citations
19.
Yoshida, Kotaro, et al.. (2012). Prevention of dew condensation occurring in the oxygenator for extracorporeal life support in vitro model. World Automation Congress. 1–6. 2 indexed citations
20.
Iwai, Shigemitsu, Yoshiki Sawa, Hajime Ichikawa, et al.. (2004). Biodegradable polymer with collagen microsponge serves as a new bioengineered cardiovascular prosthesis. Journal of Thoracic and Cardiovascular Surgery. 128(3). 472–479. 68 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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