F. Ahlhelm

2.3k total citations
88 papers, 1.5k citations indexed

About

F. Ahlhelm is a scholar working on Surgery, Neurology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, F. Ahlhelm has authored 88 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Surgery, 25 papers in Neurology and 24 papers in Pulmonary and Respiratory Medicine. Recurrent topics in F. Ahlhelm's work include Spine and Intervertebral Disc Pathology (15 papers), Cerebrovascular and Carotid Artery Diseases (12 papers) and Spinal Fractures and Fixation Techniques (11 papers). F. Ahlhelm is often cited by papers focused on Spine and Intervertebral Disc Pathology (15 papers), Cerebrovascular and Carotid Artery Diseases (12 papers) and Spinal Fractures and Fixation Techniques (11 papers). F. Ahlhelm collaborates with scholars based in Germany, Switzerland and Finland. F. Ahlhelm's co-authors include A. Nabhan, Philippe Lyrer, Stefan T. Engelter, Jens Kelm, Atte Meretoja, Turgut Tatlisumak, Markku Kaste, Daniel Strbian, W. I. Steudel and W. Reith and has published in prestigious journals such as Neurology, Stroke and Annals of Neurology.

In The Last Decade

F. Ahlhelm

76 papers receiving 1.4k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
F. Ahlhelm Germany 19 546 506 391 353 262 88 1.5k
Kesava Reddy Canada 21 874 1.6× 578 1.1× 230 0.6× 973 2.8× 99 0.4× 73 2.1k
Joseph Benzakoun France 20 349 0.6× 479 0.9× 393 1.0× 301 0.9× 183 0.7× 76 1.5k
Guillaume Saliou France 23 379 0.7× 393 0.8× 370 0.9× 836 2.4× 217 0.8× 108 1.6k
Rohan Chitale United States 20 491 0.9× 580 1.1× 483 1.2× 916 2.6× 72 0.3× 87 1.8k
Willibald Nagler United States 22 711 1.3× 226 0.4× 288 0.7× 181 0.5× 325 1.2× 59 1.6k
Samuel M. Wolpert United States 20 417 0.8× 736 1.5× 559 1.4× 511 1.4× 119 0.5× 51 1.7k
Eyal Itshayek Israel 23 650 1.2× 462 0.9× 615 1.6× 791 2.2× 67 0.3× 108 1.7k
Sergio Lucio Vinci Italy 23 332 0.6× 334 0.7× 404 1.0× 282 0.8× 295 1.1× 93 1.4k
Eberhard Siebert Germany 26 196 0.4× 416 0.8× 533 1.4× 804 2.3× 310 1.2× 111 2.1k
Ali Shaibani United States 26 319 0.6× 524 1.0× 638 1.6× 1.2k 3.5× 228 0.9× 126 1.9k

Countries citing papers authored by F. Ahlhelm

Since Specialization
Citations

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

Fields of papers citing papers by F. Ahlhelm

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of F. Ahlhelm

This figure shows the co-authorship network connecting the top 25 collaborators of F. Ahlhelm. A scholar is included among the top collaborators of F. Ahlhelm 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 F. Ahlhelm. F. Ahlhelm 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.
2.
Ahlhelm, F., et al.. (2021). Spinale Ozontherapie. Der Radiologe. 61(8). 736–741. 1 indexed citations
3.
Müller, Martín, et al.. (2017). Vascular Anatomy Predicts the Risk of Cerebral Ischemia in Patients Randomized to Carotid Stenting Versus Endarterectomy. Journal of Vascular Surgery. 66(1). 327–327. 1 indexed citations
4.
Datta, Niloy R., R. Schneider, Emsad Puric, et al.. (2016). Proton Irradiation with Hyperthermia in Unresectable Soft Tissue Sarcoma. International Journal of Particle Therapy. 3(2). 327–336. 12 indexed citations
5.
Ahlhelm, F.. (2015). Intubation und Sedierung bei der endovaskulären Therapie des akuten Hirninfarkts. Der Radiologe. 56(1). 42–46. 1 indexed citations
6.
Ulmer, Stephan, M. Backens, & F. Ahlhelm. (2015). Basic Principles and Clinical Applications of Magnetic Resonance Spectroscopy in Neuroradiology. Journal of Computer Assisted Tomography. 40(1). 1–13. 22 indexed citations
7.
Ahlhelm, F., et al.. (2012). Endovascular Treatment of Cervical Artery Dissection: Ten Case Reports and Review of the Literature. Interventional Neurology. 1(3-4). 143–150. 23 indexed citations
8.
Ahlhelm, F., et al.. (2009). Carotid Artery Stenting Using a Novel Self-Expanding Braided Nickel–Titanium Stent: Feasibility and Safety Porcine Trial. CardioVascular and Interventional Radiology. 32(5). 1019–1027. 23 indexed citations
9.
Weber, Marc‐An dré, F. Ahlhelm, Marco Essig, W. Reith, & Bram Stieltjes. (2007). Therapieoptionen bei arteriovenösen Malformationen. Der Radiologe. 47(10). 893–899. 3 indexed citations
10.
Ahlhelm, F., et al.. (2007). Treatment of wide-necked intracranial aneurysms with a novel self-expanding two-zonal endovascular stent device. Neuroradiology. 49(12). 1023–1028. 23 indexed citations
11.
Nabhan, A., Dietrich Pape, Tobias Pitzen, et al.. (2007). Radiographic Analysis of Fusion Progression Following One-Level Cervical Fusion With or Without Plate Fixation. Central European Neurosurgery - Zentralblatt für Neurochirurgie. 68(3). 133–138. 19 indexed citations
12.
Hagen, T., F. Ahlhelm, & W. Reiche. (2007). Apparent diffusion coefficient in vasogenic edema and reactive astrogliosis. Neuroradiology. 49(11). 921–926. 26 indexed citations
13.
Ahlhelm, F., W. Reith, Nicole Naumann, et al.. (2006). Postoperatives Syndrom nach Wirbelsäuleneingriffen. Der Radiologe. 46(6). 486–494. 5 indexed citations
14.
Ahlhelm, F., Jens Kelm, Nicole Naumann, et al.. (2006). Spondylitis/Spondylodiszitis. Der Radiologe. 46(6). 480–485. 3 indexed citations
15.
Kelm, Jens, et al.. (2004). MRSA-Infektionen des Bewegungsapparats. Der Chirurg. 75(10). 988–995. 15 indexed citations
16.
Caspar, W., et al.. (2003). Microsurgical excision of symptomatic sacral perineurial cysts: a study of 15 cases. Surgical Neurology. 59(2). 101–105. 78 indexed citations
17.
Ahlhelm, F., et al.. (2002). Atypische Symptome beim Karpaltunnelsyndrom - Therapie und Resultate. Fortschritte der Neurologie · Psychiatrie. 70(1). 46–51. 1 indexed citations
18.
Ahlhelm, F., Gerhard Schneider, M. Backens, W. Reith, & T. Hagen. (2002). Time course of the apparent diffusion coefficient after cerebral infarction. European Radiology. 12(9). 2322–2329. 52 indexed citations
19.
Caspar, W., et al.. (2001). Operative Behandlung von symptomatischen sakralen Wurzelzysten. Zeitschrift für Orthopädie und ihre Grenzgebiete. 319(6). 496–501. 2 indexed citations
20.
Schneider, Guenther, et al.. (2001). Rare pseudotumors of the urinary bladder in childhood. European Radiology. 11(6). 1024–1029. 17 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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