Matthias Keel

706 total citations
32 papers, 549 citations indexed

About

Matthias Keel is a scholar working on Biomedical Engineering, Surgery and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, Matthias Keel has authored 32 papers receiving a total of 549 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Biomedical Engineering, 18 papers in Surgery and 17 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in Matthias Keel's work include Non-Invasive Vital Sign Monitoring (19 papers), Optical Imaging and Spectroscopy Techniques (17 papers) and Hemodynamic Monitoring and Therapy (13 papers). Matthias Keel is often cited by papers focused on Non-Invasive Vital Sign Monitoring (19 papers), Optical Imaging and Spectroscopy Techniques (17 papers) and Hemodynamic Monitoring and Therapy (13 papers). Matthias Keel collaborates with scholars based in Switzerland, Netherlands and Chile. Matthias Keel's co-authors include Kurt von Siebenthal, Martin Wolf, Hans-Ulrich Bucher, Gabriel Duc, Hans Ulrich Bucher, V. Dietz, Martin Wolf, Oskar Baenziger, Oskar G. Jenni and Peter F. Niederer and has published in prestigious journals such as The Lancet, PEDIATRICS and Critical Care Medicine.

In The Last Decade

Matthias Keel

31 papers receiving 533 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Matthias Keel Switzerland 15 238 229 205 153 141 32 549
Kou Kawada Japan 12 252 1.1× 229 1.0× 243 1.2× 86 0.6× 111 0.8× 34 532
J.F. Sobh United States 5 140 0.6× 133 0.6× 250 1.2× 86 0.6× 215 1.5× 8 487
Gabrielle Green United Kingdom 11 62 0.3× 303 1.3× 224 1.1× 178 1.2× 134 1.0× 15 611
Simon Hyttel-Sørensen Denmark 15 369 1.6× 333 1.5× 247 1.2× 195 1.3× 278 2.0× 23 721
Marina Metzler United States 12 31 0.1× 99 0.4× 277 1.4× 23 0.2× 101 0.7× 18 388
Tareq Al‐Shargabi United States 14 25 0.1× 114 0.5× 317 1.5× 28 0.2× 111 0.8× 25 451
Jarmo Jalonen Finland 12 20 0.1× 76 0.3× 156 0.8× 42 0.3× 135 1.0× 22 385
John R. Alexander United States 6 21 0.1× 52 0.2× 77 0.4× 70 0.5× 246 1.7× 20 401
Eran Toledo Israel 11 117 0.5× 118 0.5× 87 0.4× 30 0.2× 46 0.3× 18 422
Youtaro Agata United States 11 60 0.3× 47 0.2× 138 0.7× 74 0.5× 228 1.6× 16 440

Countries citing papers authored by Matthias Keel

Since Specialization
Citations

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

Fields of papers citing papers by Matthias Keel

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Matthias Keel

This figure shows the co-authorship network connecting the top 25 collaborators of Matthias Keel. A scholar is included among the top collaborators of Matthias Keel 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 Matthias Keel. Matthias Keel 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.
Baenziger, Oskar, Matthias Keel, Hans-Ulrich Bucher, & Martin Wolf. (2008). Oxygen Extraction Index Measured By Near Infrared Spectroscopy - A Parameter For Monitoring Tissue Oxygenation?. Advances in experimental medicine and biology. 645. 161–166. 8 indexed citations
2.
Labler, Ludwig, Matthias Keel, & O. Trentz. (2004). Neue Anwendung der V.A.C.®-Therapie in der Bauchhöhle bei offenem Abdomen. Zentralblatt für Chirurgie - Zeitschrift für Allgemeine Viszeral- Thorax- und Gefäßchirurgie. 129. 14–19. 9 indexed citations
3.
Wolf, Martin, Kurt von Siebenthal, Matthias Keel, et al.. (2002). Comparison of three methods to measure absolute cerebral hemoglobin concentration in neonates by near-infrared spectrophotometry. Journal of Biomedical Optics. 7(2). 221–221. 19 indexed citations
4.
5.
Keel, Matthias, Wolfgang Ertel, & O. Trentz. (2000). Beidseitige Hüftankylose durch heterotope Ossifikationen nach isoliertem schwerem Schädel-Hirn-Trauma. Der Unfallchirurg. 103(3). 243–247. 4 indexed citations
6.
Wolf, Martin, Matthias Keel, V. Dietz, et al.. (1999). The influence of a clear layer on near-infrared spectrophotometry measurements using a liquid neonatal head phantom. Physics in Medicine and Biology. 44(7). 1743–1753. 34 indexed citations
7.
Wolf, Martin, et al.. (1999). The influence of placento-fetal transfusion (PFT) on the cerebral oxygenation of preterm neonates. Pediatric Research. 45(6). 897–897. 1 indexed citations
8.
Dietz, V., Martin Wolf, Matthias Keel, et al.. (1998). CO<sub>2</sub> Reactivity of the Cerebral Hemoglobin Concentration in Healthy Term Newborns Measured by Near Infrared Spectrophotometry. Neonatology. 75(2). 85–90. 14 indexed citations
9.
Wolf, Martin, Oskar Baenziger, Matthias Keel, et al.. (1998). <title>Testing near-infrared spectrophotometry using a liquid neonatal head phantom</title>. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 3566. 79–86. 6 indexed citations
10.
Wolf, Martin, Matthias Keel, V. Dietz, et al.. (1998). Comparison of Absolute Cerebral Haemoglobin Concentration in Neonates Measured Directly and by the Oxygen Swing Method both Based on Near Infrared Spectrophotometry. Advances in experimental medicine and biology. 454. 125–129. 1 indexed citations
11.
Wolf, Martin, Gabriel Duc, Matthias Keel, et al.. (1997). Continuous noninvasive measurement of cerebral arterial and venous oxygen saturation at the bedside in mechanically ventilated neonates. Critical Care Medicine. 25(9). 1579–1582. 42 indexed citations
12.
Wolf, Martin, HU Bucher, V. Dietz, et al.. (1997). Measurement of Absolute Cerebral Haemoglobin Concentration in Adults and Neonates. Advances in experimental medicine and biology. 428. 219–227. 24 indexed citations
13.
Wolf, Martin, HU Bucher, Matthias Keel, Kurt von Siebenthal, & Gabriel Duc. (1996). Estimation of Cerebral Blood Volume and Transit Time in Neonates From Quick Oxygen Increases Measured by Near-Infrared Spectrophotometry. Advances in experimental medicine and biology. 388. 93–99. 1 indexed citations
14.
Wolf, Martin, Nikolai C. Brun, Gorm Greisen, et al.. (1996). Optimising the methodology of calculating the cerebral blood flow of newborn infants from near infra-red spectrophotometry data. Medical & Biological Engineering & Computing. 34(3). 221–226. 8 indexed citations
15.
Jenni, Oskar G., et al.. (1996). Impact of Central, Obstructive and Mixed Apnea on Cerebral Hemodynamics in Preterm Infants. Neonatology. 70(2). 91–100. 31 indexed citations
16.
Bucher, Hans-Ulrich, et al.. (1995). Sucrose Reduces Pain Reaction to Heel Lancing in Preterm Infants: A Placebo-Controlled, Randomized and Masked Study. Pediatric Research. 38(3). 332–335. 126 indexed citations
17.
Jenni, Oskar G., et al.. (1994). Cyclical variations in cerebral blood volume during periodic breathing. Acta Paediatrica. 83(10). 1095–1096. 7 indexed citations
18.
Bucher, HU, Martin Wolf, Matthias Keel, Kurt von Siebenthal, & G. Duc. (1994). Effect of aminophylline on cerebral haemodynamics and oxidative metabolism in premature infants. European Journal of Pediatrics. 153(2). 123–128. 2 indexed citations
19.
Bucher, Hans Ulrich, Martin Wolf, Matthias Keel, Kurt von Siebenthal, & Gabriel Duc. (1994). Effect of aminophylline on cerebral haemodynamics and oxidative metabolism in premature infants. European Journal of Pediatrics. 153(2). 123–128. 16 indexed citations
20.
Bucher, Hans Ulrich, Matthias Keel, Martin Wolf, Kurt von Siebenthal, & G. Duc. (1994). Artifactual pulse-oximetry estimation in neonates. The Lancet. 343(8906). 1135–1136. 14 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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