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Abstract #3256

Susceptibility blooming effect: Quantifying spatial resolution dependence

Jean-Christophe Brisset 1 , Pippa Storey 1 , and Yulin Ge 1

1 Radiology, New York University Langone, New York, NY, United States

Susceptibility blooming effect in MRI refers to signal loss due to local field inhomogeneity and spin dephasing that extends outside the true object size with enhanced visibility. The purpose of this study is to explore and quantify the spatial resolution dependence of blooming factor at 7T. A phantom was made using plastic cylinders (diameter 3mm) filled with different iron concentrations of Ferumoxytol. Our data suggest that the acquisition matrix have an impact to measure the susceptibility blooming effect. In a clinical perspective, the blooming factor could be helpful to enhance the detection of smaller lesions (e.g. those smaller than the voxel).

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