Jascha Zapp1, Sebastian Schmitter2, Lothar R. Schad1
1Computer Assisted Clinical Medicine, Heidelberg University, Mannheim, Germany; 2Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, United States
Acoustic scanner noise causes an unwanted BOLD signal in the auditory cortex during fMRI and also poses a safety issue. Conventional EPI produces high sound pressure level (SPL) due to fast switching of trapezoidal gradients.