🏆 Finalist — NIH Data Sharing Index (“S-Index”) Challenge

Kellen K. Petersen

Washington University in St. Louis

ORCID: 0000-0003-3195-3456
MedicineNeuroscience

Pilot corpus only

This score is computed over theSindex pilot corpus and does not cover the full scientific literature. Scores are relative to papers we have ingested — papers, authors, and institutions outside the pilot are not represented. Methodology.

Top 3%percentile
1.4Author DataRank

Indexed papers

5in pilot corpus
datarank_citation_only_1hop_v6· scope data_onlyMethodology
Why this DataRank?

An author's DataRank is the sum of the DataRanks of all 5 indexed papers attributed to them. A prolific author with many moderate-impact papers can outrank one with a single high-impact paper.

Author scores recompute whenever paper DataRanks are refreshed, so this number lags the underlying paper scores by at most one batch run.

Read the full methodology →

Top data-sharing exemplar

The highest-impact dataset this researcher has shared, ranked by DataRank — the single contribution doing the most to lift their data-sharing standing.

Timing of Changes in Alzheimer's Disease Plasma Biomarkers as Assessed by Amyloid and Tau PET Clocks

Annals of Neurology(2025)10.1002/ana.27285
Top 33%
0.594DataRank
Top 33%25 citations

Duygu Tosun, Suzanne E. Schindler, Isabella Hausle, Kellen K. Petersen, Yan Li +22 more

Papers

Driven by 16 papers — median percentile 57. Top paper: “Head‐to‐head comparison of leading blood tests for Alzheimer's disease pathology”.

Head‐to‐head comparison of leading blood tests for Alzheimer's disease pathology

Alzheimer s & Dementia(2024)10.1002/alz.14315
N/A
0.766DataRank · unranked
164 citations

Kellen K. Petersen, Benjamin Saef, Duygu Tosun, Leslie M. Shaw, Henrik Zetterberg +17 more

Timing of Changes in Alzheimer's Disease Plasma Biomarkers as Assessed by Amyloid and Tau PET Clocks

Annals of Neurology(2025)10.1002/ana.27285
Top 33%
0.594DataRank
Top 33%25 citations

Duygu Tosun, Suzanne E. Schindler, Isabella Hausle, Kellen K. Petersen, Yan Li +22 more

APOE and immunity: Research highlights

Alzheimer s & Dementia(2023)10.1002/alz.13020
N/A
0.533DataRank · unranked
34 citations

Christopher J. Barnum, André F. Batista, Elizabeth M. Bradshaw, Adam M. Brickman, Guojun Bu +35 more

Impact of sex and APOE ε4 on the association of cognition and hippocampal volume in clinically normal, amyloid positive adults

Alzheimer s & Dementia Diagnosis Assessment & Disease Monitoring(2022)10.1002/dad2.12271
Top 43%
0.440DataRank
Top 43%11 citations

Ellen Grober, Richard B. Lipton, Reisa A. Sperling, Rachel F. Buckley, Paul Aisen +2 more

Association of Stages of Objective Memory Impairment With Incident Symptomatic Cognitive Impairment in Cognitively Normal Individuals

Neurology(2023)10.1212/wnl.0000000000207276
N/A
0.406DataRank · unranked
14 citations

Kellen K. Petersen, Richard B. Lipton, Jason Hassenstab, John C. Morris, Brian A. Gordon +2 more

Associations of Stages of Objective Memory Impairment with Cerebrospinal Fluid and Neuroimaging Biomarkers of Alzheimer's Disease

The Journal of Prevention of Alzheimer s Disease(2022)10.14283/jpad.2022.98
Top 47%
0.390DataRank
Top 47%8 citations

Ali Ezzati, Richard B. Lipton, Brian A. Gordon, Jason Hassenstab, John C. Morris +2 more

MRI-guided clustering of patients with mild dementia due to Alzheimer's disease using self-organizing maps

NeuroImage: Reports(2024)10.1016/j.ynirp.2024.100227
N/A
0.269DataRank · unranked
5 citations

Bhargav T. Nallapu, Richard B. Lipton, Ellen Grober, Ali Ezzati, Kellen K. Petersen

Assessing Stages of Objective Memory Impairment and neuroimaging as risk factors of incident cognitive impairment

Journal of the International Neuropsychological Society(2025)10.1017/s1355617725101240
N/A
0.165DataRank · unranked
2 citations

Ali Ezzati, Bhargav T. Nallapu, Richard B. Lipton, Reisa A. Sperling, Kathryn V. Papp +4 more

Temporal sequence of amyloid and tau PET positivity: APOE -ε4 and sex effects, and implications for Alzheimer’s disease progression

medRxiv(2025)10.1101/2025.07.27.25332202
N/A
0.104DataRank · unranked
1 citations

Isabella Hausle, Kellen K. Petersen, Pamela Thropp, Suzanne E. Schindler, Duygu Tosun +2 more

Association of item‐level responses to cognitive function index with tau pathology and hippocampal volume in the A4 Study

Alzheimer s & Dementia Diagnosis Assessment & Disease Monitoring(2025)10.1002/dad2.70128
N/A
0DataRank · unranked
1 citations

Elham Ghanbarian, Babak Khorsand, Bhargav Teja Nallapu, Kellen K. Petersen, Richard Lipton +4 more

Discovering subtypes with imaging signatures in the Motoric Cognitive Risk Syndrome Consortium using weakly supervised clustering

Alzheimer s & Dementia Diagnosis Assessment & Disease Monitoring(2025)10.1002/dad2.70197
N/A
0DataRank · unranked
1 citations

Ali Ezzati, Helena M. Blumen, Kellen K. Petersen, Richard Lipton, Emmeline Ayers +11 more

Development of Simple Risk Scores for Prediction of Brain β-Amyloid and Tau Status in Older Adults With Mild Cognitive Impairment: A Machine Learning Approach

The Journals of Gerontology Series B(2025)10.1093/geronb/gbaf085
N/A
0DataRank · unranked
1 citations

Bhargav Teja Nallapu, Richard Lipton, Ellen Grober, Christos Davatzikos, Danielle Harvey +9 more

Predicting onset of symptomatic Alzheimer disease with a plasma %p-tau217 clock

Research Square(2025)10.21203/rs.3.rs-7059258/v1
N/A
0DataRank · unranked
0 citations

Kellen K. Petersen, Marta Milà-Alomà, Yan Li, Lianlian Du, Chengjie Xiong +25 more

Plasma Biomarkers as Predictors of Progression to Dementia in Individuals with Mild Cognitive Impairment

Journal of Alzheimer s Disease(2024)10.3233/jad-230620
N/A
0DataRank · unranked
10 citations

the Alzheimer’s Disease Neuroimaging Initiative, Kellen K. Petersen, Richard B. Lipton, Christos Davatzikos, Ali Ezzati +1 more

Discovering Subtypes with Imaging Signatures in the Motoric Cognitive Risk Syndrome Consortium using Weakly-Supervised Clustering

medRxiv(2024)10.1101/2024.10.11.24315328
N/A
0DataRank · unranked
0 citations

Ali Ezzati, Helena M. Blumen, Kellen K. Petersen, Richard B. Lipton, Emmeline Ayers +10 more

Predicting Amyloid Positivity in Cognitively Unimpaired Older Adults

Neurology(2022)10.1212/wnl.0000000000200553
N/A
0DataRank · unranked
24 citations

Richard B. Lipton, Ellen Grober, Christos Davatzikos, Reisa A. Sperling, Ali Ezzati +1 more