Ralf Koester

548 total citations
22 papers, 429 citations indexed

About

Ralf Koester is a scholar working on Cardiology and Cardiovascular Medicine, Radiology, Nuclear Medicine and Imaging and Surgery. According to data from OpenAlex, Ralf Koester has authored 22 papers receiving a total of 429 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Cardiology and Cardiovascular Medicine, 7 papers in Radiology, Nuclear Medicine and Imaging and 6 papers in Surgery. Recurrent topics in Ralf Koester's work include Advanced MRI Techniques and Applications (7 papers), Coronary Interventions and Diagnostics (4 papers) and Cardiac pacing and defibrillation studies (3 papers). Ralf Koester is often cited by papers focused on Advanced MRI Techniques and Applications (7 papers), Coronary Interventions and Diagnostics (4 papers) and Cardiac pacing and defibrillation studies (3 papers). Ralf Koester collaborates with scholars based in Germany, Finland and United Kingdom. Ralf Koester's co-authors include Peter Grewe, P. Kuehnl, K. Gutensohn, K. Padmanaban, C. Beythien, Jan Kaehler, Thomas Meinertz, B. Sill, Thomas Muenzel and Henning Ebelt and has published in prestigious journals such as Journal of the American College of Cardiology, Radiology and European Heart Journal.

In The Last Decade

Ralf Koester

22 papers receiving 408 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ralf Koester Germany 10 142 132 130 82 55 22 429
Shiau‐Ting Lai Taiwan 14 108 0.8× 164 1.2× 119 0.9× 40 0.5× 94 1.7× 33 594
Ichiro Hayashi Japan 11 91 0.6× 107 0.8× 58 0.4× 27 0.3× 28 0.5× 62 460
S. J. Dong China 10 207 1.5× 41 0.3× 115 0.9× 50 0.6× 29 0.5× 15 523
Megumi Mabuchi Japan 12 148 1.0× 130 1.0× 190 1.5× 34 0.4× 21 0.4× 20 617
Ch. Müller Austria 12 50 0.4× 38 0.3× 99 0.8× 22 0.3× 39 0.7× 24 381
Ronald W. Schutz United States 9 125 0.9× 48 0.4× 168 1.3× 53 0.6× 94 1.7× 29 428
Adam J. Dixon United States 15 52 0.4× 185 1.4× 67 0.5× 92 1.1× 416 7.6× 36 662
Jason Voorneveld Netherlands 13 142 1.0× 94 0.7× 73 0.6× 19 0.2× 242 4.4× 43 464
Chang-Yun Lu Taiwan 10 32 0.2× 89 0.7× 231 1.8× 26 0.3× 63 1.1× 14 500

Countries citing papers authored by Ralf Koester

Since Specialization
Citations

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

Fields of papers citing papers by Ralf Koester

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ralf Koester

This figure shows the co-authorship network connecting the top 25 collaborators of Ralf Koester. A scholar is included among the top collaborators of Ralf Koester 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 Ralf Koester. Ralf Koester 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.
Muellerleile, Kai, Michael Groth, Achim Barmeyer, et al.. (2011). Quantification of Mechanical Ventricular Dyssynchrony: Direct Comparison of Velocity-Encoded and Cine Magnetic Resonance Imaging. RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 183(6). 554–560. 3 indexed citations
2.
Koester, Ralf, Jan Kaehler, Achim Barmeyer, et al.. (2011). Coronary angiography and intervention during hypothermia can be performed safely without cardiac arrhythmia or vasospasm. Clinical Research in Cardiology. 100(11). 1013–1019. 7 indexed citations
3.
Koester, Ralf, Jan Kaehler, Henning Ebelt, et al.. (2010). Ivabradine in combination with beta-blocker therapy for the treatment of stable angina pectoris in every day clinical practice. Clinical Research in Cardiology. 99(10). 665–672. 27 indexed citations
4.
Koester, Ralf, Jan Kaehler, & Thomas Meinertz. (2010). Ivabradine for the treatment of stable angina pectoris in octogenarians. Clinical Research in Cardiology. 100(2). 121–128. 18 indexed citations
5.
Koester, Ralf, et al.. (2010). IVABRADINE REDUCES ANGINA PECTORIS IN PATIENTS AFTER PCI: RESULTS FROM THE REDUCTION-STUDY. Journal of the American College of Cardiology. 55(10). A121.E1132–A121.E1132. 1 indexed citations
6.
Muellerleile, Kai, Michael Groth, Achim Barmeyer, et al.. (2009). Interventricular Mechanical Dyssynchrony: Quantification with Velocity-encoded MR Imaging. Radiology. 253(2). 364–371. 6 indexed citations
7.
Muellerleile, Kai, G Lund, Michael Groth, et al.. (2009). Delayed-Enhancement Magnetic Resonance Imaging in Patients with Clinically Suspected Stress Cardiomyopathy (Tako-Tsubo). RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 182(1). 29–35. 4 indexed citations
8.
Rudolph, Tanja K., Daniel Steven, Ralf Koester, et al.. (2008). Interleukin-3 is elevated in patients with coronary artery disease and predicts restenosis after percutaneous coronary intervention. International Journal of Cardiology. 132(3). 392–397. 11 indexed citations
9.
Barmeyer, Achim, Alexander Stork, Kai Muellerleile, et al.. (2008). Comparison of quantitative coronary angiography and first‐pass perfusion magnetic resonance imaging for the detection of an impaired coronary perfusion in nonsevere coronary stenosis. Journal of Magnetic Resonance Imaging. 27(5). 1005–1011. 7 indexed citations
10.
Muellerleile, Kai, Alexander Stork, Martin Bansmann, et al.. (2008). Detection of mechanical ventricular asynchrony by high temporal resolution cine MRI. European Radiology. 18(7). 1329–1337. 3 indexed citations
11.
Stevendaal, Udo van, Peter Koken, Philipp G. C. Begemann, et al.. (2006). ECG gated continuous circular cone-beam multi-cycle reconstruction for in-stent coronary artery imaging: a phantom study. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 6142. 61420L–61420L. 1 indexed citations
12.
Kaehler, Jan, et al.. (2006). Association between Eotaxin (CCL11), C-Reactive Protein, and Antimicrobial Antibodies in Patients Undergoing Coronary Angioplasty. Journal of Investigative Medicine. 54(8). 446–454. 11 indexed citations
13.
Kaehler, Jan, et al.. (2005). Perkutane Koronarinterventionen verbessern die Lebensqualität von Patienten nach dem 80. Lebensjahr. DMW - Deutsche Medizinische Wochenschrift. 130(12). 639–643. 12 indexed citations
14.
Kaehler, Jan, Ralf Koester, Christian Schroeder, et al.. (2005). 13-year follow-up of the German angioplasty bypass surgery investigation. European Heart Journal. 26(20). 2148–2153. 20 indexed citations
15.
16.
Kaehler, Jan, et al.. (2003). Effect of roxithromycin on clinical cardiovascular events in patients undergoing coronary angioplasty. Journal of the American College of Cardiology. 41(6). 335–335. 1 indexed citations
17.
Koester, Ralf, Ursula M. Gehling, Sonja Loges, et al.. (2003). Coating of intracoronary stents with AC133+ endothelial progenitor cells. Journal of the American College of Cardiology. 41(6). 12–12. 1 indexed citations
18.
Kaehler, Jan, B. Sill, Ralf Koester, et al.. (2002). Endothelin-1 mRNA and protein in vascular wall cells is increased by reactive oxygen species. Clinical Science. 103(s2002). 176S–178S. 38 indexed citations
19.
Gutensohn, K., C. Beythien, Peter Grewe, et al.. (2000). In Vitro Analyses of Diamond-like Carbon Coated Stents. Thrombosis Research. 99(6). 577–585. 221 indexed citations
20.
Gutensohn, K., C. Beythien, Ralf Koester, et al.. (2000). In vitro Biocompatibility Analyses of Stents Coated with Diamond-Like Carbon by Flow Cytometry, Cell Growth Assays and Electron Microscopy. Transfusion Medicine and Hemotherapy. 27(4). 200–206. 9 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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