Leif Østergaard

21.8k total citations · 3 hit papers
274 papers, 15.5k citations indexed

About

Leif Østergaard is a scholar working on Radiology, Nuclear Medicine and Imaging, Epidemiology and Neurology. According to data from OpenAlex, Leif Østergaard has authored 274 papers receiving a total of 15.5k indexed citations (citations by other indexed papers that have themselves been cited), including 162 papers in Radiology, Nuclear Medicine and Imaging, 72 papers in Epidemiology and 56 papers in Neurology. Recurrent topics in Leif Østergaard's work include Advanced MRI Techniques and Applications (120 papers), Advanced Neuroimaging Techniques and Applications (76 papers) and MRI in cancer diagnosis (70 papers). Leif Østergaard is often cited by papers focused on Advanced MRI Techniques and Applications (120 papers), Advanced Neuroimaging Techniques and Applications (76 papers) and MRI in cancer diagnosis (70 papers). Leif Østergaard collaborates with scholars based in Denmark, United States and Germany. Leif Østergaard's co-authors include Robert M. Weisskoff, Bruce R. Rosen, Carsten Gyldensted, Sune Nørhøj Jespersen, A. Gregory Sorensen, David A. Chesler, Kim Mouridsen, Ona Wu, Kenneth K. Kwong and Albert Gjedde and has published in prestigious journals such as SHILAP Revista de lepidopterología, ACS Nano and PLoS ONE.

In The Last Decade

Leif Østergaard

266 papers receiving 15.3k citations

Hit Papers

align trajectories sort by overperformance

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.

High resolution measurement of cerebral blood flow using intravascular tracer bolus passages. Part I: Mathematical approach and statistical analysis

1996 1.2k citations Leif Østergaard et al. profile →
High resolution measurement of cerebral blood flow using intravascular tracer bolus passages. Part II: Experimental comparison and preliminary results

1996 680 citations Leif Østergaard et al. profile →
SARS CoV‐2 related microvascular damage and symptoms during and after COVID‐19: Consequences of capillary transit‐time changes, tissue hypoxia and inflammation

2021 216 citations Leif Østergaard profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author						Papers	Cites
Leif Østergaard	8.3k	3.9k	3.1k	2.9k	1.8k	274	15.5k
E. Mark Haacke	10.5k 1.3×	3.6k 0.9×	5.6k 1.8×	1.6k 0.6×	1.8k 1.0×	331	17.7k
Greg Zaharchuk	7.5k 0.9×	3.0k 0.8×	2.3k 0.8×	3.1k 1.1×	1.6k 0.8×	242	12.5k
Claus Zimmer	5.2k 0.6×	3.0k 0.8×	2.4k 0.8×	2.2k 0.8×	4.3k 2.4×	577	16.7k
Jeffry R. Alger	5.3k 0.6×	4.9k 1.3×	3.2k 1.0×	3.1k 1.1×	1.8k 1.0×	185	13.9k
Jeroen Hendrikse	5.9k 0.7×	2.7k 0.7×	3.6k 1.2×	4.6k 1.6×	1.4k 0.8×	332	12.4k
R. Gilberto González	3.7k 0.4×	4.9k 1.3×	3.2k 1.0×	3.2k 1.1×	1.0k 0.6×	248	12.1k
A. Gregory Sorensen	12.2k 1.5×	6.1k 1.6×	4.1k 1.3×	4.9k 1.7×	1.9k 1.0×	208	24.7k
Howard A. Rowley	4.1k 0.5×	6.0k 1.6×	3.7k 1.2×	4.8k 1.7×	2.4k 1.3×	213	15.4k
Jeroen van der Grond	4.7k 0.6×	2.7k 0.7×	4.4k 1.4×	3.6k 1.3×	2.5k 1.4×	370	16.3k
Robert I. Grossman	7.2k 0.9×	4.2k 1.1×	6.4k 2.1×	1.1k 0.4×	1.6k 0.8×	285	18.6k

Countries citing papers authored by Leif Østergaard

Since Specialization

Citations

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

Fields of papers citing papers by Leif Østergaard

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Leif Østergaard

This figure shows the co-authorship network connecting the top 25 collaborators of Leif Østergaard. A scholar is included among the top collaborators of Leif Østergaard 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 Leif Østergaard. Leif Østergaard 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

Matchkov, Vladimir V., et al.. (2025). Cortical Microvascular Pulsatility in the Aging Mouse Brain and the Confounding Effects of Anesthesia. Advanced Science. 13(4). e19324–e19324.

Fossati, Silvia, et al.. (2025). Cerebral proteome adaptations to amyloid angiopathy are prevented by carbonic anhydrase inhibitors. Alzheimer s & Dementia. 21(4). e70122–e70122. 2 indexed citations

Drasbek, Kim Ryun, et al.. (2024). Exploring vascular contributions to cognitive impairment and dementia (ENIGMA): protocol for a prospective observational study. BMC Neurology. 24(1). 110–110. 1 indexed citations

Eskildsen, Simon Fristed, et al.. (2024). The effects of locus coeruleus ablation on mouse brain volume and microstructure evaluated by high-field MRI. Frontiers in Cellular Neuroscience. 18. 1498133–1498133. 1 indexed citations

Shemesh, Noam, et al.. (2024). The Larmor frequency shift of a white matter magnetic microstructure model with multiple sources. NMR in Biomedicine. 37(8). e5150–e5150. 3 indexed citations

Nyengaard, Jens Randel, et al.. (2023). Locus coeruleus ablation in mice: protocol optimization, stereology and behavioral impact. Frontiers in Cellular Neuroscience. 17. 1138624–1138624. 2 indexed citations

Thorén, Anna, Eugenio Gutiérrez‐Jiménez, Knut Sindre Åbjørsbråten, et al.. (2023). Deletion of aquaporin‐4 improves capillary blood flow distribution in brain edema. Glia. 71(11). 2559–2572. 5 indexed citations

Mikkelsen, Irene Klærke, Ulrick Espelund, Hugo Angleys, et al.. (2021). Cerebral Macro- and Microcirculation during Ephedrine versus Phenylephrine Treatment in Anesthetized Brain Tumor Patients: A Randomized Clinical Trial Using Magnetic Resonance Imaging. Anesthesiology. 135(5). 788–803. 18 indexed citations

Evald, Lars, Hyuk Jin Yun, Johan Heiberg, et al.. (2021). Abnormal Left‐Hemispheric Sulcal Patterns in Adults With Simple Congenital Heart Defects Repaired in Childhood. Journal of the American Heart Association. 10(7). e018580–e018580. 9 indexed citations

10.

Hachinski, Vladimir & Leif Østergaard. (2021). The Ambibaric Brain: Pathophysiological and Clinical Implications. Stroke. 52(6). e259–e262. 11 indexed citations

11.

Mikkelsen, Irene Klærke, Joel Aanerud, Ulrick Espelund, et al.. (2020). Ephedrine versus Phenylephrine Effect on Cerebral Blood Flow and Oxygen Consumption in Anesthetized Brain Tumor Patients. Anesthesiology. 133(2). 304–317. 27 indexed citations

12.

Li, Baoqiang, Tatiana V. Esipova, İkbal Şencan, et al.. (2019). More homogeneous capillary flow and oxygenation in deeper cortical layers correlate with increased oxygen extraction. eLife. 8. 60 indexed citations

13.

Ozenne, Brice, Tae‐Hee Cho, Norbert Nighoghossian, et al.. (2019). Comparison of classification methods for tissue outcome after ischaemic stroke. European Journal of Neuroscience. 50(10). 3590–3598. 4 indexed citations

14.

Tietze, Anna, Joel Aanerud, Gorm von Öettingen, et al.. (2017). Effect of ephedrine and phenylephrine on brain oxygenation and microcirculation in anaesthetised patients with cerebral tumours: study protocol for a randomised controlled trial. BMJ Open. 7(11). e018560–e018560. 5 indexed citations

15.

Gutiérrez‐Jiménez, Eugenio, Hugo Angleys, Peter Mondrup Rasmussen, et al.. (2017). Disturbances in the control of capillary flow in an aged APPswe/PS1ΔE9 model of Alzheimer's disease. Neurobiology of Aging. 62. 82–94. 30 indexed citations

16.

Østergaard, Leif, Jens P. Dreier, Nouchine Hadjikhani, et al.. (2015). Neurovascular Coupling During Cortical Spreading Depolarization and –Depression. Stroke. 46(5). 1392–1401. 40 indexed citations

17.

Østergaard, Leif, Sune Nørhøj Jespersen, Eugenio Gutiérrez Jiménez, et al.. (2015). Capillary Dysfunction: Its Detection and Causative Role in Dementias and Stroke. Current Neurology and Neuroscience Reports. 15(6). 37–37. 77 indexed citations

18.

Christensen, Sören, Kim Mouridsen, Ona Wu, et al.. (2009). Comparison of 10 Perfusion MRI Parameters in 97 Sub-6-Hour Stroke Patients Using Voxel-Based Receiver Operating Characteristics Analysis. Stroke. 40(6). 2055–2061. 107 indexed citations

19.

Sølling, Christine, et al.. (2006). [Thrombolysis of apoplexy patients. A year's experience and results in Aarhus Hospital].. PubMed. 168(25). 2452–6. 1 indexed citations

20.

Danielsen, Erik Hvid, David A. Smith, Leif Østergaard, et al.. (1998). Positron emission tomography of living brain in minipigs and domestic pigs. Research Portal (King's College London). 25. 127–135. 16 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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