Keywords: Physics & Engineering: High-Field MRI
Changes in relaxation parameters give rise to changed image contrasts at high field strengths (≥7T) as compared to lower field. These changes can benefit certain sequences and create challenges in other situations. The presentation will give an introductory overview of contrast mechanisms at high field (≥7T), including T1, T2, T2*, BOLD, flow, MRSI and multinuclear imaging. In addition, artifacts at higher field that have consequences for image contrast will be discussed.