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Abstract #2186

Feasibility of measuring subtle Blood-Brain Barrier permeability change with reduced scan time using Dynamic Contrast-Enhanced Magnetic Resonance Imaging

Jonghyun Bae1,2,3, Jin Zhang2,3, Youssef Zaim Wadghiri2,3, Atul Singh Minhas4, Harish Poptani4, Yulin Ge2,3, and Sungheon Gene Kim2,3

1Sackler Institute of Graduate Biomedical Science, New York University School of Medicine, New York, NY, United States, 2Center for Biomedical Imaging, Radiology, New York University School of Medicine, New York, NY, United States, 3Center for Advanced Imaging Innovation and Research, Radiology, New York University School of Medicine, New York, NY, United States, 4Centre for Preclinical Imaging, Institute of Translational Medicine, University of Liverpool, liverpool, United Kingdom

The purpose of this study is to evaluate the feasibility of using a new contrast kinetic model to accurately measure changes in the low permeability of the blood-brain barrier due to the subtle vascular disruption in the development of neurodegenerative diseases. Our proposed kinetic model, named extended Patlak model (EPM), includes the plasma flow from the artery to capillary bed, which allows the accurate description of intake dynamics. We hypothesize that this extension allows EPM to estimate the permeability change more accurately than the conventional Patlak model (PM) with a reduced scan-time of around 10 min.

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