Abstract #0189

Autofocusing Nonrigid Respiratory Motion Correction for 3D Cones Coronary MR Angiography

R. Reeve Ingle¹, Holden H. Wu², Nii Okai Addy¹, Joseph Y. Cheng¹, Bob S. Hu¹,³, Dwight G. Nishimura¹

¹Electrical Engineering, Stanford University, Stanford, CA, United States; ²Department of Radiology, University of California, Los Angeles, CA, United States; ³Palo Alto Medical Foundation, Palo Alto, CA, United States

A new application of an autofocusing nonrigid motion correction technique is demonstrated for coronary artery imaging using a free-breathing 3D cones non-Cartesian sequence. Phantom, volunteer, and patient studies are conducted to analyze the performance of the autofocusing motion correction technique. The proposed technique is shown to yield significant improvements in the depiction of the coronary arteries in volunteer and patient studies.