Brain connectivity mapping based on Positron Emission Tomography (PET) in comparison to fMRI using combined PET/MR

[O]H2O and the serotonin transporter tracer [ C]DASB, BOLD fMRI without and with global signal suppression in rats. b) The respective R matrixes. The PET tracers exhibit a distinctive metabolic network pattern. The dashed vertical lines identify some components of the default mode network using the Cingulate Cortex as reference region. For the clarity of the visual representation the Jackknife procedure for multiple comparison and bias correction is not displayed. Brain connectivity mapping based on Positron Emission Tomography (PET) in comparison to fMRI using combined PET/MR Hans F Wehrl, Mosaddek Hossain, Michael Walker, Gerald Reischl, Petros Martirosian, Fritz Schick, and Bernd J Pichler Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, University of Tuebingen, Tuebingen, Germany, Section on Experimental Radiology of Dept. of Diagnostic and Interventional Radiology, University of Tuebingen, Tuebingen, Germany