Medical Center, Los Angeles, CA, United States; 2University of
California, Los Angeles, Los Angeles, CA, United States; 3Siemens
Medical Solutions, Los Angeles, CA, United States; 4Siemens
Healthcare, Los Angeles, CA, United States
Non-contrast MRA based on bSSFP and slab-selective inversion is an attractive method for imaging abdominal arteries without contrast agents. However current free-breathing methods suffer from issues including complicated setup, prolonged scan and navigator saturation artifacts, limiting this technique from becoming clinical routine. An Adaptive Efficiency-Optimized Self Navigation (ADIOS) method is developed in this work utilizing motion information derived from imaging volume. Scan efficiency is maintained with an automatic thresholding algorithm. Volunteer study results show comparable image quality, simplified setup, and absence of navigator artifacts.