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Abstract #3170

Functional Quantitative Susceptibility Mapping in Comparison with BOLD and PET

PINAR SENAY ZBAY 1,2 , Cristina Rossi 1 , Geoffrey Warnock 3 , Klaas Paul Prssmann 2 , and Daniel Nanz 1

1 Institute for Diagnostic and Interventional Radiology, University Hospital Zrich, Zrich, Zrich, Switzerland, 2 Institute for Biomedical Engineering, University and ETH Zrich, Zrich, Zrich, Switzerland, 3 University Hospital Zrich, Clinic of Nuclear Medicine, Zrich, Zrich, Switzerland

In functional MRI, phase information as complementary information to BOLD signal-magnitude changes have been investigated with increasing interest in recent years. In this study we tested to what degree Quantitative Susceptibility Maps, derived from EPI-phase data that were simultaneously acquired with traditional BOLD fMRI magnitude data, reflect patterns of neuronal activation as observed with an identical block-design visual-stimulation paradigm in water PET and BOLD MRI data. Observations pertinent to data processing and QSM data are reported.

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