Ólafur Kjartansson

8.8k total citations · 1 hit paper
65 papers, 4.4k citations indexed

About

Ólafur Kjartansson is a scholar working on Neurology, Psychiatry and Mental health and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Ólafur Kjartansson has authored 65 papers receiving a total of 4.4k indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Neurology, 15 papers in Psychiatry and Mental health and 12 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Ólafur Kjartansson's work include Cerebrovascular and Carotid Artery Diseases (11 papers), Dementia and Cognitive Impairment Research (8 papers) and Acute Ischemic Stroke Management (7 papers). Ólafur Kjartansson is often cited by papers focused on Cerebrovascular and Carotid Artery Diseases (11 papers), Dementia and Cognitive Impairment Research (8 papers) and Acute Ischemic Stroke Management (7 papers). Ólafur Kjartansson collaborates with scholars based in Iceland, United States and Netherlands. Ólafur Kjartansson's co-authors include Elías Ólafsson, W. Allen Hauser, Vilmundur Guðnason, Pétur Lúðvígsson, Dale C. Hesdorffer, Lenore J. Launer, Mark A. van Buchem, Sigurður Sigurdsson, Tamara B. Harris and Thor Aspelund and has published in prestigious journals such as Journal of Neuroscience, Gastroenterology and NeuroImage.

In The Last Decade

Ólafur Kjartansson

60 papers receiving 4.2k citations

Hit Papers

Arterial stiffness, pressure and flow pulsatility and bra... 2011 2026 2016 2021 2011 200 400 600
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.

  1. Arterial stiffness, pressure and flow pulsatility and brain structure and function: the Age, Gene/Environment Susceptibility – Reykjavik Study
    2011 669 citations Gary F. Mitchell, Mark A. van Buchem et al. Brain profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ólafur Kjartansson Iceland 32 1.6k 893 841 767 668 65 4.4k
Ritva Vanninen Finland 42 1.4k 0.9× 558 0.6× 1.1k 1.3× 550 0.7× 851 1.3× 213 5.9k
F. Kessels Netherlands 27 565 0.4× 541 0.6× 575 0.7× 390 0.5× 547 0.8× 46 2.5k
Nick Bryan United States 18 1.2k 0.8× 822 0.9× 950 1.1× 106 0.1× 469 0.7× 35 3.5k
Vittorio Di Piero Italy 35 1.4k 0.9× 388 0.4× 666 0.8× 164 0.2× 949 1.4× 157 4.4k
Christof Kessler Germany 40 508 0.3× 704 0.8× 708 0.8× 256 0.3× 928 1.4× 99 4.6k
H. Offenbacher Austria 26 1.0k 0.6× 591 0.7× 978 1.2× 143 0.2× 1.2k 1.8× 39 4.3k
Pauline Maillard United States 31 1.3k 0.8× 596 0.7× 668 0.8× 121 0.2× 414 0.6× 104 3.4k
Maria C. Valdés Hernández United Kingdom 21 738 0.5× 269 0.3× 514 0.6× 240 0.3× 447 0.7× 33 3.1k
Olivier Godefroy France 44 1.6k 1.0× 729 0.8× 1.5k 1.8× 226 0.3× 2.0k 3.1× 220 6.7k
Marco Bartolini Italy 34 1.3k 0.8× 608 0.7× 644 0.8× 94 0.1× 365 0.5× 104 3.0k

Countries citing papers authored by Ólafur Kjartansson

Since Specialization
Citations

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

Fields of papers citing papers by Ólafur Kjartansson

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ólafur Kjartansson

This figure shows the co-authorship network connecting the top 25 collaborators of Ólafur Kjartansson. A scholar is included among the top collaborators of Ólafur Kjartansson 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 Ólafur Kjartansson. Ólafur Kjartansson 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.
Kjartansson, Ólafur, et al.. (2023). Mortality of multiple sclerosis in Iceland population-based mortality of MS in incidence and prevalence cohorts. Multiple Sclerosis Journal - Experimental Translational and Clinical. 9(2). 3100532667–3100532667. 2 indexed citations
2.
Kjartansson, Ólafur, et al.. (2018). Prevalence of Multiple Sclerosis in Iceland. Neuroepidemiology. 51(1-2). 50–56. 11 indexed citations
3.
Sigmarsdottir, A., et al.. (2017). Thyrotoxicosis in a 13‐year‐old girl following pituitary adenectomy for Cushing′s disease. Clinical Case Reports. 5(8). 1341–1343. 3 indexed citations
4.
Muller, Majon, Sigurður Sigurdsson, Ólafur Kjartansson, et al.. (2016). Late-life brain volume: a life-course approach. The AGES-Reykjavik study. Neurobiology of Aging. 41. 86–92. 9 indexed citations
5.
Sveinsson, Ólafur, Ólafur Sveinsson, Ólafur Kjartansson, & Einar Már Valdimarsson. (2014). Heilablóðþurrð/ -drep - greining og meðferð. Læknablaðið. 2014(708). 393–401. 24 indexed citations
6.
Guðmundsson, Lárus S., I Scher, Sigurður Sigurdsson, et al.. (2013). Migraine, depression, and brain volume. Neurology. 80(23). 2138–2144. 36 indexed citations
7.
Rorden, Chris, Haukur Hjaltason, Paul Fillmore, et al.. (2012). Allocentric neglect strongly associated with egocentric neglect. Neuropsychologia. 50(6). 1151–1157. 49 indexed citations
8.
Magnúsdóttir, Sigríður, Paul Fillmore, Dirk‐Bart den Ouden, et al.. (2012). Damage to left anterior temporal cortex predicts impairment of complex syntactic processing: A lesion-symptom mapping study. Human Brain Mapping. 34(10). 2715–2723. 87 indexed citations
9.
Mitchell, Gary F., Mark A. van Buchem, Sigurður Sigurdsson, et al.. (2011). Arterial stiffness, pressure and flow pulsatility and brain structure and function: the Age, Gene/Environment Susceptibility – Reykjavik Study. Brain. 134(11). 3398–3407. 669 indexed citations breakdown →
10.
Hesdorffer, Dale C., Pétur Lúðvígsson, W. Allen Hauser, Elías Ólafsson, & Ólafur Kjartansson. (2007). Co-occurrence of major depression or suicide attempt with migraine with aura and risk for unprovoked seizure. Epilepsy Research. 75(2-3). 220–223. 38 indexed citations
11.
Víkingsdóttir, T., T Jónsson, Á. J. Geirsson, et al.. (2006). The effects of tobacco smoking and rheumatoid factor seropositivity on disease activity and joint damage in early rheumatoid arthritis. Lara D. Veeken. 45(6). 734–740. 112 indexed citations
12.
Hesdorffer, Dale C., Hong Tian, Kishlay Anand, et al.. (2005). Socioeconomic Status Is a Risk Factor for Epilepsy in Icelandic Adults but Not in Children. Epilepsia. 46(8). 1297–1303. 83 indexed citations
13.
Hesdorffer, Dale C., W. Allen Hauser, Elías Ólafsson, Pétur Lúðvígsson, & Ólafur Kjartansson. (2005). Depression and suicide attempt as risk factors for incident unprovoked seizures. Annals of Neurology. 59(1). 35–41. 379 indexed citations
14.
Ólafsson, Elías, Pétur Lúðvígsson, Dale C. Hesdorffer, et al.. (2005). Incidence of unprovoked seizures and epilepsy in Iceland and assessment of the epilepsy syndrome classification: a prospective study. The Lancet Neurology. 4(10). 627–634. 239 indexed citations
15.
Lúðvígsson, Pétur, Dale C. Hesdorffer, Elías Ólafsson, Ólafur Kjartansson, & W. Allen Hauser. (2005). Migraine with aura is a risk factor for unprovoked seizures in children. Annals of Neurology. 59(1). 210–213. 78 indexed citations
16.
Hesdorffer, Dale C., Pétur Lúðvígsson, Elías Ólafsson, et al.. (2004). ADHD as a Risk Factor for Incident Unprovoked Seizures and Epilepsyin Children. Archives of General Psychiatry. 61(7). 731–731. 239 indexed citations
17.
Jónsdóttir, Marıá K., et al.. (1998). Pure Alexia and Word-Meaning Deafness in a Patient With Multiple Sclerosis. Archives of Neurology. 55(11). 1473–1473. 9 indexed citations
18.
Stefánsson, Sigurjón B., Elías Ólafsson, & Ólafur Kjartansson. (1997). Rannsókn á mál- og minnisgetu flogaveikisjúklinga fyrir gagnaugablaðsaðgerð, Wada próf. Læknablaðið.
19.
Kjartansson, Ólafur, et al.. (1992). Factors influencing the siting of industrial plants using geothermal steam in iceland. Geothermics. 21(5-6). 917–925.
20.
Russell, David, et al.. (1990). Cerebral vasoreactivity and blood flow before and 3 months after carotid endarterectomy.. Stroke. 21(7). 1029–1032. 60 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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