Operationalizing postmortem pathology-MRI association studies in Alzheimer’s disease and related disorders with MRI-guided histology sampling

Postmortem neuropathological examination, while the gold standard for diagnosing neurodegenerative diseases, often relies on limited regional sampling that may miss critical areas affected by Alzheimer’s disease and related disorders. Ultra-high resolution postmortem MRI can help identify regions th...

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Vydáno v:Acta neuropathologica communications Ročník 13; číslo 1; s. 120 - 25
Hlavní autoři: Athalye, Chinmayee, Bahena, Alejandra, Khandelwal, Pulkit, Emrani, Sheina, Trotman, Winifred, Levorse, Lisa M., Khodakarami, Zahra, Ohm, Daniel T., Teunissen-Bermeo, Eric, Capp, Noah, Sadaghiani, Shokufeh, Arezoumandan, Sanaz, Lim, Sydney A., Prabhakaran, Karthik, Ittyerah, Ranjit, Robinson, John L., Schuck, Theresa, Lee, Edward B., Tisdall, M. Dylan, Das, Sandhitsu R., Wolk, David A., Irwin, David J., Yushkevich, Paul A.
Médium: Journal Article
Jazyk:angličtina
Vydáno: London BioMed Central 28.05.2025
BioMed Central Ltd
BMC
Témata:
Aged
Aged, 80 and over
Alzheimer Disease - diagnostic imaging
Alzheimer Disease - pathology
Alzheimer's disease
Autopsy - methods
Biomedical and Life Sciences
Biomedicine
Brain - diagnostic imaging
Brain - pathology
Daniel, T
Diseases
Female
Histology
Humans
Magnetic resonance imaging
Magnetic Resonance Imaging - methods
Male
Medical research
Medicine, Experimental
MRI-histology registration
Neurology
Neurosciences
Pathology
Postmortem imaging
Quantitative pathology
Postmortem imaging
Quantitative pathology
Histology
MRI-histology registration
Alzheimer’s disease
ISSN:2051-5960, 2051-5960
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Popis
Shrnutí:Postmortem neuropathological examination, while the gold standard for diagnosing neurodegenerative diseases, often relies on limited regional sampling that may miss critical areas affected by Alzheimer’s disease and related disorders. Ultra-high resolution postmortem MRI can help identify regions that fall outside the diagnostic sampling criteria for additional histopathologic evaluation. However, there are no standardized guidelines for integrating histology and MRI in a traditional brain bank. We developed a comprehensive protocol for whole hemisphere postmortem 7T MRI-guided histopathological sampling with whole-slide digital imaging and histopathological analysis, providing a reliable pipeline for high-volume brain banking in heterogeneous brain tissue. Our method uses patient-specific 3D printed molds built from postmortem MRI, allowing standardized tissue processing with a permanent spatial reference frame. To facilitate pathology-MRI association studies, we created a semi-automated MRI to histology registration pipeline and developed a quantitative pathology scoring system using weakly supervised deep learning. We validated this protocol on a cohort of 29 brains with diagnosis on the AD spectrum that revealed correlations between cortical thickness and phosphorylated tau accumulation. This pipeline has broad applicability across neuropathological research and brain banking, facilitating large-scale studies that integrate histology with neuroimaging. The innovations presented here provide a scalable and reproducible approach to studying postmortem brain pathology, with implications for advancing diagnostic and therapeutic strategies for Alzheimer’s disease and related disorders.
Bibliografie:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:2051-5960
2051-5960
DOI:10.1186/s40478-025-02030-y