Abstract #2027

Blood-Oxygen Level Dependent (BOLD) Imaging in Native and Transplanted Kidneys on 1.5T and 3.0T

Garima Agrawal¹, Sean B. Fain^1,2, Nathan Artz², Andrew L. Wentland², Thomas M. Grist^1,2, Arjang Djamali³, Elizabeth A. Sadowski¹

¹Radiology, University of Wisconsin, Madison, Madison, WI, USA; ²Medical Physics, University of Wisconsin, Madison, Madison, WI, USA; ³Nephrology, University of Wisconsin, Madison, Madison, WI, USA

We evaluated the reproducibility and feasibility of MR blood-oxygen level dependent (BOLD) measurements in kidneys on 1.5T as well as 3.0T in native and transplanted kidneys. Coefficient of variation (CV) for cortical and medullary R2* values were obtained from both 1.5T and 3.0T within and between subjects. BOLD MR imaging at 3.0T had a comparable reproducibility to 1.5T for normal native kidneys. In transplanted kidneys, BOLD processing at 3T could not be performed in a significant number of subjects due to a significant amount of susceptibility and motion artifacts.