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R. Ittyerah · SciRah

Researcher profile · Semantic Scholar

R. Ittyerah

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R. Ittyerah — researcher profile on SciRah

h-index: 19
Works: 120
Citations: 1,255

Most-cited papers

Characterizing the human hippocampus in aging and Alzheimer’s disease using a computational atlas derived from ex vivo MRI and histology
D. Adler, L. Wisse, R. Ittyerah, J. Pluta +17 more
2018Proceedings of the National Academy of Sciences of the United States of America179 citations Open access
Semantic Scholar
Three-dimensional mapping of neurofibrillary tangle burden in the human medial temporal lobe.
Paul Yushkevich, M. M. López, Maria Mercedes Iñiguez de Onzoño Martin, R. Ittyerah +36 more
2021Brain : a journal of neurology81 citations Open access
Semantic Scholar
Overview of ADNI MRI
C. Jack, A. Arani, Bret J. Borowski, D. Cash +22 more
2024Alzheimer's & Dementia74 citations Open access
Semantic Scholar
Longitudinal and cross-sectional structural MRI correlates of AV-1451 uptake
Sandhitsu R. Das, Long Xie, L. Wisse, R. Ittyerah +4 more
2018Neurobiology of Aging73 citations Open access
Semantic Scholar
Longitudinal atrophy in early Braak regions in preclinical Alzheimer's disease
Long Xie, L. Wisse, Sandhitsu R. Das, Nicolas Vergnet +5 more
2020Human Brain Mapping58 citations Open access
Semantic Scholar
Ex vivo MRI atlas of the human medial temporal lobe: characterizing neurodegeneration due to tau pathology
S. Ravikumar, L. Wisse, Sydney A. Lim, R. Ittyerah +27 more
2021Acta Neuropathologica Communications53 citations Open access
Semantic Scholar
Characterization of hippocampal subfields using ex vivo MRI and histology data: lessons for in vivo segmentation
R. de Flores, D. Berron, Song-Lin Ding, R. Ittyerah +13 more
2019Hippocampus50 citations Open access
Semantic Scholar
Baseline structural MRI and plasma biomarkers predict longitudinal structural atrophy and cognitive decline in early Alzheimer’s disease
Long Xie, Sandhitsu R. Das, L. Wisse, R. Ittyerah +4 more
2023Alzheimer's Research & Therapy45 citations Open access
Semantic Scholar
In-vivo Measures of Tau Burden are Associated with Atrophy in Early Braak Stage Medial Temporal Lobe Regions in Amyloid Negative Individuals
Sandhitsu R. Das, Long Xie, L. Wisse, Nicolas Vergnet +4 more
2019Alzheimer's & Dementia44 citations
Semantic Scholar
Postmortem imaging reveals patterns of medial temporal lobe vulnerability to tau pathology in Alzheimer’s disease
S. Ravikumar, Amanda E. Denning, Sydney A. Lim, E. Chung +23 more
2024Nature Communications41 citations Open access
Semantic Scholar
Ex vivo MRI and histopathology detect novel iron-rich cortical inflammation in frontotemporal lobar degeneration with tau versus TDP-43 pathology
M. Tisdall, Daniel T. Ohm, Rebecca Lobrovich, Sandhitsu R. Das +13 more
2021NeuroImage: Clinical41 citations Open access
Semantic Scholar
Downstream effects of polypathology on neurodegeneration of medial temporal lobe subregions
L. Wisse, S. Ravikumar, R. Ittyerah, S. Lim +26 more
2021Acta Neuropathologica Communications39 citations Open access
Semantic Scholar
Early Tau Burden Correlates with Higher Rate of Atrophy in Transentorhinal Cortex
Long Xie, Sandhitsu R. Das, L. Wisse, R. Ittyerah +2 more
2018Journal of Alzheimer's Disease36 citations Open access
Semantic Scholar
Hippocampal Subfield Pathologic Burden in Lewy Body Diseases versus Alzheimer’s Disease
D. Coughlin, R. Ittyerah, Claire S. Peterson, Jeffrey S. Phillips +13 more
2020Neuropathology and Applied Neurobiology32 citations Open access
Semantic Scholar
Regional distribution and maturation of tau pathology among phenotypic variants of Alzheimer’s disease
Sanaz Arezoumandan, Sharon X. Xie, K. Cousins, D. Mechanic-Hamilton +12 more
2022Acta Neuropathologica24 citations Open access
Semantic Scholar
Association of quantitative histopathology measurements with antemortem medial temporal lobe cortical thickness in the Alzheimer’s disease continuum
Amanda E. Denning, R. Ittyerah, Lisa Levorse, Niyousha Sadeghpour +34 more
2024Acta Neuropathologica19 citations
Semantic Scholar
A multi‐cohort study of longitudinal and cross‐sectional Alzheimer's disease biomarkers in cognitively unimpaired older adults
Long Xie, Sandhitsu R. Das, Yue Li, L. Wisse +20 more
2025Alzheimer's & Dementia15 citations Open access
Semantic Scholar
Associations of phosphorylated tau pathology with whole-hemisphere ex-vivo morphometry in 7 tesla MRI
S. Sadaghiani, W. Trotman, Sydney A. Lim, E. Chung +31 more
2022Alzheimer's & Dementia14 citations Open access
Semantic Scholar
Automated deep learning segmentation of high-resolution 7 Tesla postmortem MRI for quantitative analysis of structure-pathology correlations in neurodegenerative diseases
Pulkit Khandelwal, M. T. Duong, S. Sadaghiani, Sydney A. Lim +33 more
2024Imaging Neuroscience13 citations Open access
Semantic Scholar
Automated Multi-Atlas Segmentation of Hippocampal and Extrahippocampal Subregions in Alzheimer’s Disease at 3T and 7T: What Atlas Composition Works Best?
Long Xie, R. Shinohara, R. Ittyerah, H. Kuijf +14 more
2018Journal of Alzheimer's Disease12 citations Open access
Semantic Scholar
Comparison of histological delineations of medial temporal lobe cortices by four independent neuroanatomy laboratories
A. Wuestefeld, H. Baumeister, Jenna N. Adams, R. de Flores +36 more
2024Hippocampus11 citations Open access
Semantic Scholar
Morphometry of medial temporal lobe subregions using high‐resolution T2‐weighted MRI in ADNI3: Why, how, and what's next?
Paul Yushkevich, R. Ittyerah, Yue Li, Amanda E. Denning +9 more
2024Alzheimer's & Dementia11 citations Open access
Semantic Scholar
Cross-sectional and longitudinal Medial Temporal Lobe Subregional Atrophy Patterns in Semantic Variant Primary Progressive Aphasia
L. Wisse, Molly B. Ungrady, R. Ittyerah, Sydney A. Lim +5 more
2020Neurobiology of Aging9 citations Open access
Semantic Scholar
Operationalizing postmortem pathology-MRI association studies in Alzheimer’s disease and related disorders with MRI-guided histology sampling
Chinmayee Athalye, A. Bahena, Pulkit Khandelwal, Sheina Emrani +19 more
2025Acta Neuropathologica Communications8 citations Open access
Semantic Scholar
Building an Ex Vivo Atlas of the Earliest Brain Regions Affected by Alzheimer's Disease Pathology
S. Ravikumar, L. Wisse, R. Ittyerah, Sydney A. Lim +22 more
2020IEEE International Symposium on Biomedical Imaging7 citations
Semantic Scholar
Developing an anatomically valid segmentation protocol for anterior regions of the medial temporal lobe for neurodegenerative diseases
Niyousha Sadeghpour, Sydney A. Lim, A. Wuestefeld, Amanda E. Denning +29 more
2025bioRxiv6 citations Open access
Semantic Scholar
3D Mapping of Neurofibrillary Tangle Burden in the Human Medial Temporal Lobe
Paul Yushkevich, M. M. López, Maria Mercedes Iñiguez de Onzoño Martin, R. Ittyerah +36 more
2021bioRxiv6 citations Open access
Semantic Scholar
Characterizing Anatomical Variability And Alzheimer’s Disease Related Cortical Thinning in the Medial Temporal Lobe Using Graph-Based Groupwise Registration And Point Set Geodesic Shooting
Long Xie, L. Wisse, Sandhitsu R. Das, R. Ittyerah +3 more
2018ShapeMI@MICCAI6 citations Open access
Semantic Scholar
3D Mapping of TAU Neurofibrillary Tangle Pathology in the Human Medial Temporal Lobe
Paul Yushkevich, Maria Mercedes Iñiguez de Onzoño Martin, R. Ittyerah, Sydney A. Lim +29 more
2020IEEE International Symposium on Biomedical Imaging5 citations
Semantic Scholar
Implementation and validation of face de‐identification (de‐facing) in ADNI4
C. Schwarz, M. Choe, Stephanie Rossi, Sandhitsu R. Das +20 more
2024Alzheimer's & Dementia4 citations Open access
Semantic Scholar
Mapping Medial Temporal Lobe Longitudinal Change in Preclinical Alzheimer’s Disease
Paul Yushkevich, Long Xie, L. Wisse, M. Dong +5 more
2023Alzheimer's & Dementia4 citations Open access
Semantic Scholar
Automated deep learning segmentation of high-resolution 7 T ex vivo MRI for quantitative analysis of structure-pathology correlations in neurodegenerative diseases
Pulkit Khandelwal, M. T. Duong, S. Sadaghiani, Sydney A. Lim +32 more
2023arXiv.org4 citations Open access
Semantic Scholar
Gray Matter Segmentation in Ultra High Resolution 7 Tesla ex vivo T2w MRI of Human Brain Hemispheres
Pulkit Khandelwal, S. Sadaghiani, M. T. Duong, S. Ravikumar +29 more
2021arXiv.org4 citations
Semantic Scholar
Surface-Based Parcellation and Vertex-wise Analysis of Ultra High-resolution ex vivo 7 tesla MRI in Alzheimer's disease and related dementias
Pulkit Khandelwal, M. T. Duong, Lisa Levorse, Constanza Fuentes +19 more
2024MLCN@MICCAI3 citations Open access
Semantic Scholar
Deep learning pipeline for cortical gray matter segmentation and thickness analysis in Ultra High Resolution T2w 7 Tesla Ex vivo MRI across neurodegenerative diseases reveals associations with underlying neuropathology
Pulkit Khandelwal, S. Sadaghiani, E. Chung, Sydney A. Lim +29 more
2022Alzheimer's & Dementia3 citations
Semantic Scholar
Baseline structural MRI and plasma biomarkers predict longitudinal structural atrophy and cognitive decline in early AD
Long Xie, Sandhitsu R. Das, L. Wisse, R. Ittyerah +3 more
2021Alzheimer's & Dementia3 citations
Semantic Scholar
Downstream effects of polypathology on neurodegeneration of medial temporal lobe subregions
L. Wisse, S. Ravikumar, R. Ittyerah, S. Lim +26 more
2021Acta Neuropathologica Communications3 citations Open access
Semantic Scholar
Joint ex vivo MRI and histology detect iron-rich cortical gliosis in Tau and TDP-43 proteinopathies
M. Tisdall, Daniel T. Ohm, Rebecca Lobrovich, Sandhitsu R. Das +13 more
2021bioRxiv3 citations Open access
Semantic Scholar
Unfolding the Medial Temporal Lobe Cortex to Characterize Neurodegeneration Due to Alzheimer's Disease Pathology Using Ex vivo Imaging
S. Ravikumar, L. Wisse, Sydney A. Lim, D. Irwin +25 more
2021MLCN@MICCAI3 citations
Semantic Scholar
High‐resolution postmortem MRI reveals TDP‐43 association with medial temporal lobe subregional atrophy
L. Wisse, S. Ravikumar, R. Ittyerah, Sydney A. Lim +27 more
20203 citations Open access
Semantic Scholar
Optimized extraction of the medial temporal lobe for postmortem MRI based on custom 3D printed molds
Jade Lasserve, Sydney A. Lim, L. Wisse, R. Ittyerah +20 more
20203 citations Open access
Semantic Scholar
Developing an Anatomically Valid Segmentation Protocol for Anterior Regions of the Medial Temporal Lobe for Neurodegenerative Diseases
Niyousha Sadeghpour, Sydney A. Lim, A. Wuestefeld, Amanda E. Denning +29 more
2025Hippocampus2 citations Open access
Semantic Scholar
Deep Learning for Ultra High Resolution T2‐weighted 7 Tesla Ex vivo Magnetic Resonance Imaging Reveals Differential Subcortical Atrophy across Neurodegenerative Diseases
Pulkit Khandelwal, M. T. Duong, E. Chung, S. Sadaghiani +30 more
2022Alzheimer's & Dementia2 citations
Semantic Scholar
Postmortem brain MRI reveals differential associations of subcortical and limbic volumes with cortical thinning and neurodegenerative pathologies
Pulkit Khandelwal, M. T. Duong, Lisa Levorse, W. Trotman +27 more
2025bioRxiv1 citations Open access
Semantic Scholar
VIOLET: Volumetric Image registration via Optimization and Learning for Efficient image Translation
Pulkit Khandelwal, M. T. Duong, Lisa Levorse, Sydney A. Lim +23 more
2025SASHIMI@MICCAI 20251 citations
Semantic Scholar
Characterization of hippocampal subfields using histology-based annotated postmortem MRI: Lessons for in vivo segmentation II
HL Tucker, B. Karat, AT De Ruiter, D. Parker +39 more
2025bioRxiv1 citations
Semantic Scholar
Implementation and Validation of Face De‐Identification (de‐facing) in ADNI‐4
C. Schwarz, D. Tosun, Paul Yushkevich, M. Choe +16 more
2024Alzheimer's & Dementia1 citations
Semantic Scholar
Developing an anatomically valid segmentation protocol for early tau regions: the anterior medial temporal lobe cortices
Niyousha Sadeghpour, R. Ittyerah, Amanda E. Denning, W. Trotman +29 more
2023Alzheimer's & Dementia1 citations Open access
Semantic Scholar
Application of histopathologically derived 3D tau burden map as in‐vivo region of interest for biomarker analysis
Sandhitsu R. Das, Long Xie, R. de Flores, M. Muñoz +40 more
2021Alzheimer's & Dementia1 citations
Semantic Scholar
Subtle differences in the appearance of hippocampal layers differentiate preclinical AD from healthy aging
Long Xie, Sandhitsu R. Das, L. Wisse, R. Ittyerah +4 more
20201 citations Open access
Semantic Scholar

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