Karl A. Friedrichsen

1.9k total citations · 1 hit paper
15 papers, 1.1k citations indexed

About

Karl A. Friedrichsen is a scholar working on Physiology, Psychiatry and Mental health and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, Karl A. Friedrichsen has authored 15 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Physiology, 9 papers in Psychiatry and Mental health and 5 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in Karl A. Friedrichsen's work include Dementia and Cognitive Impairment Research (9 papers), Alzheimer's disease research and treatments (8 papers) and Advanced Neuroimaging Techniques and Applications (3 papers). Karl A. Friedrichsen is often cited by papers focused on Dementia and Cognitive Impairment Research (9 papers), Alzheimer's disease research and treatments (8 papers) and Advanced Neuroimaging Techniques and Applications (3 papers). Karl A. Friedrichsen collaborates with scholars based in United States, Australia and Germany. Karl A. Friedrichsen's co-authors include Tammie L.S. Benzinger, John C. Morris, Beau M. Ances, Yi Su, Jon Christensen, Patricia Aldea, Anne M. Fagan, Brian A. Gordon, Matthew R. Brier and Nigel J. Cairns and has published in prestigious journals such as Nature Communications, NeuroImage and Brain.

In The Last Decade

Karl A. Friedrichsen

14 papers receiving 1.1k 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.

Tau and Aβ imaging, CSF measures, and cognition in Alzheimer’s disease

2016 535 citations Matthew R. Brier, Brian A. Gordon et al. Science Translational Medicine profile →

Peers

Countries citing papers authored by Karl A. Friedrichsen

Since Specialization

Citations

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

Fields of papers citing papers by Karl A. Friedrichsen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Karl A. Friedrichsen. 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 Karl A. Friedrichsen. The network helps show where Karl A. Friedrichsen may publish in the future.

Co-authorship network of co-authors of Karl A. Friedrichsen

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

All Works

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15 of 15 papers shown

#	Work	Indexed citations
1	Evaluation of [ ¹¹ C]CS1P1 in Healthy Young and Older Adults 2025 ·American Journal of Neuroradiology ·Karl A. Friedrichsen, (unknown), Lynne A. Jones, (unknown), (unknown), (unknown), Farzaneh Rahmani, (unknown), Christopher R. King, Aisling M. Chaney, Michael L. Nickels, Robert J. Gropler, Cyrus A. Raji, Robert L. White, Joel S. Perlmutter, Richard Laforest, Hongyu An, (unknown), Tammie L.S. Benzinger, Matthew R. Brier	1
2	Subcellular pathways through VGluT3-expressing mouse amacrine cells provide locally tuned object-motion-selective signals in the retina 2024 ·Nature Communications ·Karl A. Friedrichsen, (unknown), Chin-I Lin, Liam G. McCoy, (unknown), Daniel Kerschensteiner, Josh Morgan	0
3	Reconstructing neural circuits using multiresolution correlated light and electron microscopy 2022 ·Frontiers in Neural Circuits ·Karl A. Friedrichsen, (unknown), (unknown), (unknown), Daniel Kerschensteiner, Josh Morgan	4
4	AV-1451 PET imaging of tau pathology in preclinical Alzheimer disease: Defining a summary measure 2017 ·NeuroImage ·Shruti Mishra, Brian A. Gordon, Yi Su, (unknown), Karl A. Friedrichsen, Kelley Jackson, Russ C. Hornbeck, David A. Balota, Nigel J. Cairns, John C. Morris, Beau M. Ances, Tammie L.S. Benzinger	114
5	The relationship between cerebrospinal fluid markers of Alzheimer pathology and positron emission tomography tau imaging 2016 ·Brain ·Brian A. Gordon, Karl A. Friedrichsen, Matthew R. Brier, Tyler Blazey, Yi Su, Jon Christensen, Patricia Aldea, Jonathan McConathy, David M. Holtzman, Nigel J. Cairns, John C. Morris, Anne M. Fagan, Beau M. Ances, Tammie L.S. Benzinger	134
6	O5‐01‐06: TAU Pet Imaging with AV‐1451 in Autosomal Dominant Alzheimer's Disease: Update from the Dominantly Inherited Alzheimer Network (DIAN) 2016 ·Alzheimer s & Dementia ·Tammie L.S. Benzinger, Brian A. Gordon, Karl A. Friedrichsen, Yi Su, Jon Christensen, Russ C. Hornbeck, Shruti Mishra, Patricia Aldea, Lisa Cash, Beau M. Ances, Jonathan McConathy, Robert A. Koeppe, Eric McDade, Nigel J. Cairns, John C. Morris, Randall J. Bateman, Virginia Buckles, (unknown)	4
7	Evaluation of Tau Imaging in Staging Alzheimer Disease and Revealing Interactions Between β-Amyloid and Tauopathy 2016 ·JAMA Neurology ·Liang Wang, Tammie L.S. Benzinger, Yi Su, Jon Christensen, Karl A. Friedrichsen, Patricia Aldea, Jonathan McConathy, Nigel J. Cairns, Anne M. Fagan, John C. Morris, Beau M. Ances	223
8	Tau and Aβ imaging, CSF measures, and cognition in Alzheimer’s disease breakdown → 2016 ·Science Translational Medicine ·Matthew R. Brier, Brian A. Gordon, Karl A. Friedrichsen, John E. McCarthy, Ari Stern, Jon Christensen, Christopher G. Owen, Patricia Aldea, Yi Su, Jason Hassenstab, Nigel J. Cairns, David M. Holtzman, Anne M. Fagan, John C. Morris, Tammie L.S. Benzinger, Beau M. Ances	535
9	IC‐01‐03: Classifying TAU Pet Positivity With [18F]‐AV‐1451 in Preclinical Alzheimer's Disease 2016 ·Alzheimer s & Dementia ·Shruti Mishra, Brian A. Gordon, Karl A. Friedrichsen, Yi Su, Jon Christensen, Patricia Aldea, Nigel J. Cairns, John C. Morris, Beau M. Ances, Tammie L.S. Benzinger	2
10	Neuropathologic assessment of participants in two multi-center longitudinal observational studies: the Alzheimer Disease Neuroimaging Initiative (ADNI) and the Dominantly Inherited Alzheimer Network (DIAN) 2015 ·PMC ·Nigel J. Cairns, Richard J. Perrin, Erin Franklin, Deborah Carter, (unknown), Mingqiang Xie, Randall J. Bateman, Tammie L.S. Benzinger, Karl A. Friedrichsen, William S. Brooks, Glenda M. Halliday, Catriona McLean, Bernardino Ghetti, John C. Morris	2
11	Local and distributed PiB accumulation associated with development of preclinical Alzheimer's disease 2015 ·Neurobiology of Aging ·Matthew R. Brier, John E. McCarthy, Tammie L.S. Benzinger, Ari Stern, Yi Su, Karl A. Friedrichsen, John C. Morris, Beau M. Ances, Andrei G. Vlassenko	10
12	IC‐P‐164: Patterns of tau binding in T807‐PET imaging 2015 ·Alzheimer s & Dementia ·Karl A. Friedrichsen, Tammie L.S. Benzinger, Nelly Joseph‐Mathurin, Anne M. Fagan, Nigel J. Cairns, (unknown), Yi Su, Jon Christensen, Jonathan McConathy, Brian A. Gordon, (unknown), Beau M. Ances, John C. Morris	1
13	Neuropathologic assessment of participants in two multi‐center longitudinal observational studies: The Alzheimer Disease Neuroimaging Initiative (ADNI) and the Dominantly Inherited Alzheimer Network (DIAN) 2015 ·Neuropathology ·Nigel J. Cairns, Richard J. Perrin, Erin Franklin, Deborah Carter, (unknown), Mingqiang Xie, Randall J. Bateman, Tammie L.S. Benzinger, Karl A. Friedrichsen, William S. Brooks, Glenda M. Halliday, Catriona McLean, Bernardino Ghetti, John C. Morris, (unknown), (unknown)	53
14	IC‐03‐02: Early frame of PiB and FDG in autosomal dominant Alzheimer's disease: Similarity, discrepancy, and clinical implication 2015 ·Alzheimer s & Dementia ·Nelly Joseph‐Mathurin, Yi Su, Andrei G. Vlassenko, Mateusz S. Jasielec, Tyler Blazey, Karl A. Friedrichsen, Christopher J. Owen, Russ C. Hornbeck, (unknown), Lisa Cash, Chengjie Xiong, John M. Ringman, Adam M. Brickman, Robert A. Koeppe, Beau M. Ances, Marcus E. Raichle, John C. Morris, Randall J. Bateman, Tammie L.S. Benzinger	1
15	2-Acetylaminofluorene-produced selective cytotoxic damage of a ductal compartment and its repair in the submandibular gland of rats 1997 ·Cell and Tissue Research ·(unknown), (unknown), Karl A. Friedrichsen, W Linss	4

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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