A. Roggan

161 total papers · 4.4k total citations
92 papers, 3.1k citations indexed

About

A. Roggan is a scholar working on Biomedical Engineering, Radiology, Nuclear Medicine and Imaging and Hepatology. According to data from OpenAlex, A. Roggan has authored 92 papers receiving a total of 3.1k indexed citations (citations by other indexed papers that have themselves been cited), including 58 papers in Biomedical Engineering, 55 papers in Radiology, Nuclear Medicine and Imaging and 24 papers in Hepatology. Recurrent topics in A. Roggan’s work include Photoacoustic and Ultrasonic Imaging (38 papers), Ultrasound and Hyperthermia Applications (31 papers) and Infrared Thermography in Medicine (25 papers). A. Roggan is often cited by papers focused on Photoacoustic and Ultrasonic Imaging (38 papers), Ultrasound and Hyperthermia Applications (31 papers) and Infrared Thermography in Medicine (25 papers). A. Roggan collaborates with scholars based in Germany, United States and Russia. A. Roggan's co-authors include G. Müller, M.F. Friebel, Andreas Hahn, K. Dörschel, H. J. Buhr, Christoph Isbert, G. Müller, G. Müller, Martina C. Meinke and C.-T. Germer and has published in prestigious journals such as The Journal of Chemical Physics, Gastroenterology and Annals of Surgery.

Co-authorship network of co-authors of A. Roggan

This figure shows the co-authorship network connecting the top 25 collaborators of A. Roggan. A scholar is included among the top collaborators of A. Roggan 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 A. Roggan. A. Roggan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

A. Roggan

91 papers receiving 2.9k citations

Fields of papers citing papers by A. Roggan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by A. Roggan

Since Specialization
Citations

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

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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2026