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Profile image of Alan C Seifert

    Alan C Seifert, PhD

    Education

    BS, Johns Hopkins University

    PhD, University of Pennsylvania

    Postdoc, Icahn School of Medicine at Mount Sinai

    Awards

    2025

    Dean's Team Science Award, Finalist, ISMMS

    2023

    Distinguished Scholar Award, Runner Up, ISMMS

    2019

    Junior Fellow of the International Society for Magnetic Resonance in Medicine

    2017

    NINDS Career Development Award (NIH K01)

    2016

    The Lodwick Award, Massachusetts General Hospital, Department of Radiology, 2016 Division of Musculoskeletal Imaging & Intervention

    Research

    MRI is an extremely valuable 3D non-destructive method for investigation of post-mortem tissue. Multiple pulse sequences can provide information on microstructural integrity of white matter, myelination, edema, infarction, and hemorrhage throughout the entire brain at high spatial resolution. However, MRI cannot yet deliver the level of microscopic detail and specificity that histology can provide. Although histology provides incredibly detailed and specific information on a microscopic level, this information is only available in tissue that is selected a priori for sectioning and staining. It is therefore very likely that sectioning and visual examination will fail to sample all abnormal regions in the brain, particularly small microhemorrhages or microinfarctions that are smaller than several millimeters. The integration of MRI and histology methods can combine the sensitivity of whole-brain 3D imaging with the specificity and detail of histopathological analysis. This renders the unification of MRI and histology more effective than the sum of the two methods in isolation. We are applying these complementary methods in studies of the neurological post-acute sequelae of COVID-19 infection, traumatic brain injury, and fundamental neuroanatomy.

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