Ralf Koos

3.1k citations

55 papers · 2.3k indexed · h-index 26

Impact in

Cardiology and Cardiovascular Medicine top 2%
- Cardiac Valve Diseases and Treatments
- Cardiovascular Function and Risk Factors
Radiology, Nuclear Medicine and Imaging top 1%
- Cardiac Imaging and Diagnostics
- Advanced MRI Techniques and Applications

Papers in ⓘ

Cardiology and Cardiovascular Medicine 35
- Cardiac Valve Diseases and Treatments 20
- Cardiovascular Function and Risk Factors 8
- Cardiac pacing and defibrillation studies 6
Radiology, Nuclear Medicine and Imaging 35
- Cardiac Imaging and Diagnostics 34
- Advanced MRI Techniques and Applications 11

Co-authors: Andreas H. Mahnken (33 shared papers)Joachim E. Wildberger (20 shared papers)Rolf W. Günther (18 shared papers)Harald P. Kühl (13 shared papers)Rainer Hoffmann (18 shared papers)Georg Mühlenbruch (13 shared papers)Nikolaus Marx (15 shared papers)Leon J. Schurgers (5 shared papers)
Journals: European Radiology (9 papers)International Journal of Cardiology (5 papers)Journal of the American College of Cardiology (5 papers)Investigative Radiology (4 papers)American Journal of Roentgenology (4 papers)
Partner nations: Germany Netherlands United Kingdom

In The Last Decade

Ralf Koos

54 papers receiving 2.2k citations

Peers

Countries citing papers authored by Ralf Koos

Since Specialization

Citations

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

Fields of papers citing papers by Ralf Koos

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside Ralf Koos, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Ralf Koos Line = papers co-authored together Ralf Koos links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 55 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Assessment of Myocardial Viability in Reperfused Acute Myocardial Infarction Using 16-Slice Computed Tomography in Comparison to Magnetic Resonance Imaging Journal of the American College of Cardiology ·Andreas H. Mahnken, Ralf Koos, Marcus Katoh, Joachim E. Wildberger, Elmar Spuentrup, Arno Buecker, Rolf W. Günther, Harald P. Kühl	2005	218
2	Characterisation and potential diagnostic value of circulating matrix Gla protein (MGP) species Thrombosis and Haemostasis ·Ellen Cranenburg, Ralf Koos, Leon J. Schurgers, Elke Magdeleyns, Thea Schoonbrood, Robert B M Landewé, Vincent Brandenburg, Otto Bekers, Cees Vermeer	2010	184
3	Association of aortic valve calcification severity with the degree of aortic regurgitation after transcatheter aortic valve implantation International Journal of Cardiology ·Ralf Koos, Andreas H. Mahnken, Guido Dohmen, Kathrin Brehmer, Rolf W. Günther, Rüdiger Autschbach, Nikolaus Marx, Rainer Hoffmann	2010	143
4	The Circulating Inactive Form of Matrix Gla Protein (ucMGP) as a Biomarker for Cardiovascular Calcification Journal of Vascular Research ·Ellen C.M. Cranenburg, Cees Vermeer, Ralf Koos, Marie‐Louise Boumans, Tilman M. Hackeng, Freek G. Bouwman, Martijn Kwaijtaal, Vincent Brandenburg, Markus Ketteler, Leon J. Schurgers	2008	140
5	Relationship between sclerostin and cardiovascular calcification in hemodialysis patients: a cross-sectional study BMC Nephrology ·Vincent Brandenburg, Rafael Kramann, Ralf Koos, Thilo Krüger, Leon J. Schurgers, Georg Mühlenbruch, Sinah Hübner, Ulrich Gladziwa, Christiane Drechsler, Markus Ketteler	2013	133
6	Aortic Valve Calcification as a Marker for Aortic Stenosis Severity: Assessment on 16-MDCT American Journal of Roentgenology ·Ralf Koos, Andreas H. Mahnken, Anil M. Sinha, Joachim E. Wildberger, Rainer Hoffmann, Harald P. Kühl	2004	110
7	Sixteen-slice spiral CT versus MR imaging for the assessment of left ventricular function in acute myocardial infarction European Radiology ·Andreas H. Mahnken, Ralf Koos, Marcus Katoh, Elmar Spuentrup, Petra Busch, Joachim E. Wildberger, Harald P. K�hl, Rolf W. G�nther	2005	105
8	Sclerostin as a potential novel biomarker for aortic valve calcification: an in-vivo and ex-vivo study. PubMed ·Ralf Koos, Vincent Brandenburg, Andreas H. Mahnken, Rebekka K. Schneider, Guido Dohmen, Rüdiger Autschbach, Nikolaus Marx, Rafael Kramann	2013	80
9	Relation of circulating matrix Gla-protein and anticoagulation status in patients with aortic valve calcification Thrombosis and Haemostasis ·Thilo Krueger, Ralf Westenfeld, Harald P. Kühl, Vincent Brandenburg, Andreas H. Mahnken, S Stanzel, Cees Vermeer, Ellen Cranenburg, Jürgen Floege, Malte Kelm, Leon J. Schurgers, Ralf Koos	2009	78
10	Global left ventricular function in cardiac CT. Evaluation of an automated 3D region-growing segmentation algorithm European Radiology ·Georg Mühlenbruch, Marco Das, Christian Hohl, Joachim E. Wildberger, Daniel Rinck, Thomas Flohr, Ralf Koos, Christian Knackstedt, Rolf W. Günther, Andreas H. Mahnken	2005	74
11	Evaluation of aortic root for definition of prosthesis size by magnetic resonance imaging and cardiac computed tomography: Implications for transcatheter aortic valve implantation International Journal of Cardiology ·Ralf Koos, Ertunc Altiok, Andreas H. Mahnken, Mirja Neizel, Guido Dohmen, Nikolaus Marx, Harald P. Kühl, Rainer Hoffmann	2011	70
12	Comparison of left ventricular lead placement via the coronary venous approach versus lateral thoracotomy in patients receiving cardiac resynchronization therapy The American Journal of Cardiology ·Ralf Koos, Anil‐Martin Sinha, Kai U. Markus, Ole A. Breithardt, Karl Mischke, Markus Zarse, Michael Schmid, Rüdiger Autschbach, Peter Hanrath, Christoph Stellbrink	2004	69
13	Prevalence and Clinical Importance of Aortic Valve Calcification Detected Incidentally on CT Scans: Comparison with Echocardiography Radiology ·Ralf Koos, Harald P. Kühl, Georg Mühlenbruch, Joachim E. Wildberger, Rolf W. Günther, Andreas H. Mahnken	2006	59
14	Myocardial Deformation Imaging by Two-Dimensional Speckle-Tracking Echocardiography for Prediction of Global and Segmental Functional Changes after Acute Myocardial Infarction: A Comparison with Late Gadolinium Enhancement Cardiac Magnetic Resonance Journal of the American Society of Echocardiography ·Ertunc Altiok, Sonja Tiemann, Michael Becker, Ralf Koos, C. Zwicker, Jörg Schroeder, Nils A. Kraemer, Felix Schoth, Dan Adam, Zvi Friedman, Nikolaus Marx, Rainer Hoffmann	2013	58
15	Automated vs. manual assessment of left ventricular function in cardiac multidetector row computed tomography: comparison with magnetic resonance imaging European Radiology ·Andreas H. Mahnken, Georg Mühlenbruch, Ralf Koos, S Stanzel, Petra Busch, Mathias Niethammer, Rolf W. Günther, Joachim E. Wildberger	2006	57
16	Effect of Varying Slice Thickness on Coronary Calcium Scoring With Multislice Computed Tomography in Vitro and in Vivo Investigative Radiology ·Georg Mühlenbruch, Christoph Thomas, Joachim E. Wildberger, Ralf Koos, Marco Das, Christian Hohl, Marcus Katoh, Rolf W. Günther, Andreas H. Mahnken	2005	53
17	Measurement of cardiac output from a test-bolus injection in multislice computed tomography European Radiology ·Andreas H. Mahnken, Ernst Klotz, Anja Hennemuth, Bettina Jung, Ralf Koos, Joachim E. Wildberger, Rolf W. Günther	2003	49
18	Prevention of vasculopathy by vitamin K supplementation: Can we turn fiction into fact? Atherosclerosis ·Vincent Brandenburg, Leon J. Schurgers, Nadine Kaesler, Katrin Püsche, Rick H. van Gorp, Georges Lefthériotis, Sebastian Reinartz, Ralf Koos, Thilo Krüger	2015	48
19	Imaging of the Cardiac Venous System: Comparison of MDCT and Conventional Angiography American Journal of Roentgenology ·Georg Mühlenbruch, Ralf Koos, Joachim E. Wildberger, Rolf W. Günther, Andreas H. Mahnken	2005	46
20	MDCT Detection of Mitral Valve Calcification: Prevalence and Clinical Relevance Compared with Echocardiography American Journal of Roentgenology ·Andreas H. Mahnken, Georg Mühlenbruch, Marco Das, Joachim E. Wildberger, Harald P. Kühl, Rolf W. Günther, Malte Kelm, Ralf Koos	2007	46

About Ralf Koos

Ralf Koos is a scholar working on Cardiology and Cardiovascular Medicine, Radiology, Nuclear Medicine and Imaging, Nephrology, Nutrition and Dietetics and Epidemiology, having authored 55 papers that have together received 2.3k indexed citations. Recurring topics across this work include Cardiac Imaging and Diagnostics (34 papers), Cardiac Valve Diseases and Treatments (20 papers), Infective Endocarditis Diagnosis and Management (12 papers), Advanced MRI Techniques and Applications (11 papers), Advanced X-ray and CT Imaging (9 papers), Cardiovascular Function and Risk Factors (8 papers), Cardiac pacing and defibrillation studies (6 papers) and Vitamin K Research Studies (5 papers). The work is most often cited by research in Cardiology and Cardiovascular Medicine (1.1k citations), Radiology, Nuclear Medicine and Imaging (1.1k citations), Nephrology (332 citations), Nutrition and Dietetics (379 citations) and Epidemiology (433 citations). Ralf Koos has collaborated with scholars based in Germany, Netherlands and United Kingdom. Frequent co-authors include Andreas H. Mahnken, Joachim E. Wildberger, Rolf W. Günther, Harald P. Kühl, Rainer Hoffmann, Georg Mühlenbruch, Nikolaus Marx, Leon J. Schurgers, Marcus Katoh and Guido Dohmen. Their work appears in journals such as European Radiology, International Journal of Cardiology, Journal of the American College of Cardiology, Investigative Radiology and American Journal of Roentgenology.

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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