Karen Marr

869 total citations
29 papers, 664 citations indexed

About

Karen Marr is a scholar working on Neurology, Internal Medicine and Pathology and Forensic Medicine. According to data from OpenAlex, Karen Marr has authored 29 papers receiving a total of 664 indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Neurology, 9 papers in Internal Medicine and 7 papers in Pathology and Forensic Medicine. Recurrent topics in Karen Marr's work include Cerebral Venous Sinus Thrombosis (24 papers), Venous Thromboembolism Diagnosis and Management (9 papers) and Multiple Sclerosis Research Studies (7 papers). Karen Marr is often cited by papers focused on Cerebral Venous Sinus Thrombosis (24 papers), Venous Thromboembolism Diagnosis and Management (9 papers) and Multiple Sclerosis Research Studies (7 papers). Karen Marr collaborates with scholars based in United States, Italy and United Kingdom. Karen Marr's co-authors include Robert Zivadinov, Bianca Weinstock‐Guttman, Ellen Carl, Michael G. Dwyer, David Hojnacki, Ralph H. B. Benedict, Murali Ramanathan, Cheryl Kennedy, Krešimir Dolić and Yuval Karmon and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Neurology.

In The Last Decade

Karen Marr

29 papers receiving 633 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Karen Marr United States 15 529 169 135 128 127 29 664
A. Anzini Italy 10 208 0.4× 146 0.9× 48 0.4× 216 1.7× 33 0.3× 16 647
Ichiro Deguchi Japan 14 219 0.4× 27 0.2× 92 0.7× 279 2.2× 43 0.3× 86 684
Todd A. Kuether United States 9 371 0.7× 100 0.6× 54 0.4× 139 1.1× 32 0.3× 17 553
Nicolas K. Khattar United States 13 276 0.5× 107 0.6× 49 0.4× 193 1.5× 17 0.1× 45 599
Gregory M. Weiner United States 13 328 0.6× 37 0.2× 62 0.5× 159 1.2× 25 0.2× 52 634
Robin Sellar United Kingdom 13 387 0.7× 63 0.4× 22 0.2× 205 1.6× 39 0.3× 42 620
Lavinia Dinia Italy 16 158 0.3× 63 0.4× 55 0.4× 171 1.3× 32 0.3× 28 479
Alain Viguier France 17 520 1.0× 14 0.1× 31 0.2× 270 2.1× 73 0.6× 40 845
Stéphanie Lenck France 21 939 1.8× 34 0.2× 100 0.7× 204 1.6× 75 0.6× 77 1.2k
N Futrell United States 9 161 0.3× 40 0.2× 21 0.2× 207 1.6× 71 0.6× 13 531

Countries citing papers authored by Karen Marr

Since Specialization
Citations

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

Fields of papers citing papers by Karen Marr

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Karen Marr

This figure shows the co-authorship network connecting the top 25 collaborators of Karen Marr. A scholar is included among the top collaborators of Karen Marr 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 Karen Marr. Karen Marr 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.
Jakimovski, Dejan, Ferhan Qureshi, Murali Ramanathan, et al.. (2024). Lower arterial cerebral blood flow is associated with worse neuroinflammation and immunomodulation composite proteomic scores. Multiple Sclerosis and Related Disorders. 87. 105687–105687. 1 indexed citations
2.
Jakimovski, Dejan, Niels Bergsland, Michael G. Dwyer, et al.. (2022). Cerebral blood flow dependency on systemic arterial circulation in progressive multiple sclerosis. European Radiology. 32(9). 6468–6479. 3 indexed citations
3.
Jakimovski, Dejan, Karen Marr, Deepa P. Ramasamy, et al.. (2022). Lower cerebral arterial blood flow is associated with greater serum neurofilament light chain levels in multiple sclerosis patients. European Journal of Neurology. 29(8). 2299–2308. 4 indexed citations
4.
Gandhi, Sirin, Karen Marr, Marcello Mancini, et al.. (2019). No association between variations in extracranial venous anatomy and clinical outcomes in multiple sclerosis patients over 5 years. BMC Neurology. 19(1). 121–121. 4 indexed citations
5.
Marr, Karen, Dejan Jakimovski, Marcello Mancini, Ellen Carl, & Robert Zivadinov. (2018). Jugular Venous Flow Quantification Using Doppler Sonography. Ultrasound in Medicine & Biology. 44(8). 1762–1769. 12 indexed citations
6.
Jakimovski, Dejan, Karen Marr, Sirin Gandhi, et al.. (2018). Abnormal venous postural control: multiple sclerosis-specific change related to gray matter pathology or age-related neurodegenerative phenomena?. Clinical Autonomic Research. 29(3). 329–338. 6 indexed citations
7.
Dolić, Krešimir, Adnan H. Siddiqui, Yuval Karmon, Karen Marr, & Robert Zivadinov. (2013). The role of noninvasive and invasive diagnostic imaging techniques for detection of extra-cranial venous system anomalies and developmental variants. BMC Medicine. 11(1). 155–155. 25 indexed citations
8.
Benedict, Ralph H. B., Karen Marr, Cheryl Kennedy, et al.. (2013). Chronic cerebrospinal venous insufficiency is not associated with cognitive impairment in multiple sclerosis. BMC Medicine. 11(1). 167–167. 7 indexed citations
9.
Zivadinov, Robert, Yuval Karmon, Krešimir Dolić, et al.. (2013). Multimodal noninvasive and invasive imaging of extracranial venous abnormalities indicative of CCSVI: Results of the PREMiSe pilot study. BMC Neurology. 13(1). 151–151. 14 indexed citations
10.
Zivadinov, Robert, Christopher Magnano, Roberto Galeotti, et al.. (2013). Changes of Cine Cerebrospinal Fluid Dynamics in Patients with Multiple Sclerosis Treated with Percutaneous Transluminal Angioplasty: A Case-control Study. Journal of Vascular and Interventional Radiology. 24(6). 829–838. 28 indexed citations
11.
Karmon, Yuval, Robert Zivadinov, Bianca Weinstock‐Guttman, et al.. (2013). Comparison of Intravascular Ultrasound with Conventional Venography for Detection of Extracranial Venous Abnormalities Indicative of Chronic Cerebrospinal Venous Insufficiency. Journal of Vascular and Interventional Radiology. 24(10). 1487–1498.e1. 22 indexed citations
12.
Weinstock‐Guttman, Bianca, Murali Ramanathan, Karen Marr, et al.. (2012). Clinical correlates of chronic cerebrospinal venous insufficiency in multiple sclerosis. BMC Neurology. 12(1). 26–26. 16 indexed citations
13.
Zivadinov, Robert, Gary Cutter, Karen Marr, et al.. (2012). No Association Between Conventional Brain MR Imaging and Chronic Cerebrospinal Venous Insufficiency in Multiple Sclerosis. American Journal of Neuroradiology. 33(10). 1913–1917. 13 indexed citations
14.
Dolić, Krešimir, Karen Marr, Michael G. Dwyer, et al.. (2011). Intra- and Extraluminal Structural and Functional Venous Anomalies in Multiple Sclerosis, as Evidenced by 2 Noninvasive Imaging Techniques. American Journal of Neuroradiology. 33(1). 16–23. 31 indexed citations
15.
16.
Zivadinov, Robert, Murali Ramanathan, Krešimir Dolić, et al.. (2011). Chronic cerebrospinal venous insufficiency in multiple sclerosis: diagnostic, pathogenetic, clinical and treatment perspectives. Expert Review of Neurotherapeutics. 11(9). 1277–1294. 38 indexed citations
17.
Weinstock‐Guttman, Bianca, Robert Zivadinov, Gary Cutter, et al.. (2011). Chronic Cerebrospinal Vascular Insufficiency Is Not Associated with HLA DRB1*1501 Status in Multiple Sclerosis Patients. PLoS ONE. 6(2). e16802–e16802. 12 indexed citations
18.
Zivadinov, Robert, Roberto Galeotti, David Hojnacki, et al.. (2011). Value of MR Venography for Detection of Internal Jugular Vein Anomalies in Multiple Sclerosis: A Pilot Longitudinal Study. American Journal of Neuroradiology. 32(5). 938–946. 59 indexed citations
19.
Dolić, Krešimir, Bianca Weinstock‐Guttman, Karen Marr, et al.. (2011). Risk Factors for Chronic Cerebrospinal Venous Insufficiency (CCSVI) in a Large Cohort of Volunteers. PLoS ONE. 6(11). e28062–e28062. 38 indexed citations
20.
Zivadinov, Robert, Karen Marr, Gary Cutter, et al.. (2011). Prevalence, sensitivity, and specificity of chronic cerebrospinal venous insufficiency in MS. Neurology. 77(2). 138–144. 151 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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