Ralf Ketter

5.6k total citations · 2 hit papers
49 papers, 2.5k citations indexed

About

Ralf Ketter is a scholar working on Epidemiology, Genetics and Surgery. According to data from OpenAlex, Ralf Ketter has authored 49 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Epidemiology, 18 papers in Genetics and 13 papers in Surgery. Recurrent topics in Ralf Ketter's work include Meningioma and schwannoma management (21 papers), Glioma Diagnosis and Treatment (18 papers) and Neurofibromatosis and Schwannoma Cases (10 papers). Ralf Ketter is often cited by papers focused on Meningioma and schwannoma management (21 papers), Glioma Diagnosis and Treatment (18 papers) and Neurofibromatosis and Schwannoma Cases (10 papers). Ralf Ketter collaborates with scholars based in Germany, United States and Switzerland. Ralf Ketter's co-authors include Wolfgang Wick, Guido Reifenberger, Michael Weller, Michael Sabel, Jörg Felsberg, W. Feiden, Andreas von Deimling, Steffi Urbschat, Matthias Simon and Christoph Meisner and has published in prestigious journals such as Journal of Clinical Oncology, PLoS ONE and Neurology.

In The Last Decade

Ralf Ketter

45 papers receiving 2.4k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Temozolomide chemotherapy alone versus radiotherapy alone for malignant astrocytoma in the elderly: the NOA-08 randomised, phase 3 trial

2012 769 citations Wolfgang Wick, Michael Platten et al. The Lancet Oncology profile →
NOA-04 Randomized Phase III Trial of Sequential Radiochemotherapy of Anaplastic Glioma With Procarbazine, Lomustine, and Vincristine or Temozolomide

2009 571 citations Wolfgang Wick, Christian Hartmann et al. Journal of Clinical Oncology profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ralf Ketter Germany	18	1.7k	809	743	683	589	49	2.5k
Adriana Olar United States	18	1.1k 0.6×	436 0.5×	365 0.5×	337 0.5×	324 0.6×	49	1.6k
Weiming Shi United States	5	1.8k 1.1×	819 1.0×	539 0.7×	266 0.4×	283 0.5×	6	2.4k
Marina Paola Gardiman Italy	29	1.2k 0.7×	504 0.6×	834 1.1×	992 1.5×	809 1.4×	92	2.9k
Ho Jun Seol South Korea	28	877 0.5×	936 1.2×	607 0.8×	621 0.9×	429 0.7×	148	3.1k
Daniel Schrimpf Germany	20	1.2k 0.7×	326 0.4×	399 0.5×	593 0.9×	467 0.8×	52	1.7k
Sumihito Nobusawa Japan	24	2.2k 1.3×	393 0.5×	575 0.8×	1.3k 1.9×	1.1k 1.8×	115	3.1k
Xavier Muracciole France	23	673 0.4×	505 0.6×	676 0.9×	392 0.6×	221 0.4×	71	1.8k
Lynn S. Ashby United States	20	1.1k 0.6×	591 0.7×	361 0.5×	304 0.4×	196 0.3×	46	1.6k
David W. Kimmel United States	31	1.9k 1.1×	539 0.7×	873 1.2×	1.2k 1.7×	705 1.2×	50	3.8k
Torsten Pietsch Germany	31	1.5k 0.9×	339 0.4×	731 1.0×	1.3k 1.8×	334 0.6×	78	3.4k

Countries citing papers authored by Ralf Ketter

Since Specialization

Citations

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

Fields of papers citing papers by Ralf Ketter

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ralf Ketter

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

All Works

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20 of 20 papers shown

Wick, Wolfgang, Antje Wick, Inga Harting, et al.. (2024). CTNI-85. FINAL RESULTS FROM N2M2/NOA-20. Neuro-Oncology. 26(Supplement_8). viii117–viii117.

Knowles, Lynn M., Stefan Linsler, Steffi Urbschat, et al.. (2024). Clotting Promotes Glioma Growth and Infiltration Through Activation of Focal Adhesion Kinase. Cancer Research Communications. 4(12). 3124–3136. 1 indexed citations

Jungwirth, Gerhard, Miriam Ratliff, Ralf Ketter, et al.. (2022). Single-cell DNA sequencing reveals order of mutational acquisition in TRAF7/AKT1 and TRAF7/KLF4 mutant meningiomas. Acta Neuropathologica. 144(4). 799–802. 5 indexed citations

Tschernig, Thomas, et al.. (2021). Radiological analyses of the dimensions of the pedicle and dorsal part of the transverse process of subaxial vertebrae in the context of cervical spine surgery. Annals of Anatomy - Anatomischer Anzeiger. 238. 151790–151790. 1 indexed citations

Schulz‐Schaeffer, Walter, et al.. (2021). MiRNA-181d Expression Correlates in Tumor versus Plasma of Glioblastoma Patients—the Base of a Preoperative Stratification Tool for Local Carmustine Wafer Use. World Neurosurgery. 159. e324–e333. 5 indexed citations

Tschernig, Thomas, et al.. (2021). Comparison of the maximum possible lengths of insertable screws in the Subaxial Cervical Spine. Annals of Anatomy - Anatomischer Anzeiger. 239. 151839–151839.

Sahm, Felix, et al.. (2020). The Loss of 1p as a Reliable Marker of Progression in a Child with Aggressive Meningioma: A 16-Year Follow-Up Case Report. Pediatric Neurosurgery. 55(6). 418–425.

Urbschat, Steffi, et al.. (2019). Deletions in the 17q chromosomal region and their influence on the clonal cytogenetic evolution of recurrent meningiomas. Molecular Cytogenetics. 12(1). 22–22. 7 indexed citations

Müller, Isabelle, Matthias Eyrich, Brigitte K. Flesch, et al.. (2016). Tumor antigen–specific T cells for immune monitoring of dendritic cell–treated glioblastoma patients. Cytotherapy. 18(9). 1146–1161. 6 indexed citations

10.

Lerner, Cornelia, Ralf Ketter, Stefan Linsler, et al.. (2014). Establishment of a molecular cytogenetic analysis for native tumor tissue of meningiomas-suitable for clinical application. Molecular Cytogenetics. 7(1). 12–12. 9 indexed citations

11.

Wick, Wolfgang, Christoph Meisner, Bettina Hentschel, et al.. (2013). Prognostic or predictive value of MGMT promoter methylation in gliomas depends on IDH1 mutation. Neurology. 81(17). 1515–1522. 173 indexed citations

12.

Wick, Wolfgang, Michael Platten, Christoph Meisner, et al.. (2012). Temozolomide chemotherapy alone versus radiotherapy alone for malignant astrocytoma in the elderly: the NOA-08 randomised, phase 3 trial. The Lancet Oncology. 13(7). 707–715. 769 indexed citations breakdown →

13.

Wick, Wolfgang, Christian Hartmann, Corinna Engel, et al.. (2009). NOA-04 Randomized Phase III Trial of Sequential Radiochemotherapy of Anaplastic Glioma With Procarbazine, Lomustine, and Vincristine or Temozolomide. Journal of Clinical Oncology. 27(35). 5874–5880. 571 indexed citations breakdown →

14.

Ketter, Ralf. (2009). Correspondence of Tumor Localization with Tumor Recurrence and Cytogenetic Progression in Meningiomas. Neurosurgery. 64(6). E1206–E1206. 3 indexed citations

15.

Ketter, Ralf, Jörg Rahnenführer, Wolfram Henn, et al.. (2008). CORRESPONDENCE OF TUMOR LOCALIZATION WITH TUMOR RECURRENCE AND CYTOGENETIC PROGRESSION IN MENINGIOMAS. Neurosurgery. 62(1). 61–70. 52 indexed citations

16.

Kim, Yoo-Jin, Ralf Ketter, Wolf-Ingo Steudel, & W. Feiden. (2007). Prognostic Significance of the Mitotic Index Using the Mitosis Marker Anti–Phosphohistone H3 in Meningiomas. American Journal of Clinical Pathology. 128(1). 118–125. 91 indexed citations

17.

Ketter, Ralf, Steffi Urbschat, Wolfram Henn, et al.. (2007). Application of oncogenetic trees mixtures as a biostatistical model of the clonal cytogenetic evolution of meningiomas. International Journal of Cancer. 121(7). 1473–1480. 38 indexed citations

18.

Wemmert, Silke, Ralf Ketter, Jörg Rahnenführer, et al.. (2005). Patients with High-Grade Gliomas Harboring Deletions of Chromosomes 9p and 10q Benefit from Temozolomide Treatment. Neoplasia. 7(10). 883–893. 48 indexed citations

19.

Wullich, Bernd, et al.. (2004). Evidence for gains at 15q and 20q in brain metastases of prostate cancer. Cancer Genetics and Cytogenetics. 154(2). 119–123. 13 indexed citations

20.

Ketter, Ralf, T Zwergel, Gerhard Unteregger, et al.. (1996). Selection toward diploid cells in prostatic carcinoma derived cell cultures. The Prostate. 28(6). 364–371. 10 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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