Abstract #0600

High Resolution 3D Abdominal T1 Mapping in One Breath-Hold Using the Look-Locker Method and Non-Cartesian GRAPPA Acceleration

Yong Chen¹, Gregory R. Lee¹, Katherine L. Wright², Mark A. Griswold¹,², Nicole Seiberlich², Vikas Gulani¹,²

¹Department of Radiology, University Hospitals of Cleveland, Cleveland, OH, United States; ²Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States

Fast and accurate measurement of T1 relaxation times over the entire abdomen is challenging due to the large volume to be covered and respiratory motion. Here we present a high resolution 3D abdominal T1 mapping technique using the Look-Locker method, a stack-of-spirals trajectory and through-time non-Cartesian GRAPPA acceleration. This proposed technique allows fast T1 mapping of the whole abdomen in one breath-hold without the need for B1 mapping or image registration.