Abstract #0840

Comparison of Breath-Hold Versus Free-Breathing Versus Respiratory Triggered & Navigator Triggered Diffusion Weighted Imaging of the Liver

Moritz Florian Kircher^1,2, Alan Xu¹, Anja C. Brau³, Martin Laufik¹, Yuji Iwadate⁴, Jarrett Rosenberg¹, Bruce L. Daniel¹, Robert J. Herfkens¹

¹Radiology, Stanford University, Stanford, CA, United States; ²Radiology, Memorial Sloan-Kettering Cancer Center, New York, NY, United States; ³Global Applied Science Laboratory, GE Healthcare, Menlo Park, CA, United States; ⁴Global Applied Science Laboratory, GE Healthcare, Hino, Japan

Diffusion-weighted imaging (DWI) has become a routine part of abdominal MRI examinations at many institutions. Several different DWI techniques are currently in use, including breath-hold DWI and non-breathhold DWI techniques such as free-breathing, respiratory-triggered DWI and Navigator-triggered DWI. In this study, we aimed to prospectively evaluate and compare the subjective image quality of these four commonly used DWI techniques in 30 patients with liver lesions. The results demonstrate superiority of navigator-triggered and respiratory-triggered DWI over breath-hold and free-breathing DWI for most image quality parameters.