Jessica Leigh Klaers1, Ethan K. Brodsky1,2, Walter F. Block1,3, Richard Kijowski2
1Medical Physics, University of Wisconsin - Madison, Madison, WI, United States; 2Radiology, University of Wisconsin - Madison, Madison, WI, United States; 3Biomedical Engineering, University of Wisconsin - Madison, Madison, WI, United States
Effective cartilage imaging and whole organ joint assessment requires both high isotropic resolution and fat suppression or separation. We present a single pass, 3D radial fat-suppressed Alternating TR (FS ATR) SSFP acquisition which provides ultra-high isotropic resolution of 0.33 mm (voxel volume of 1/27 mm3) throughout the entire knee joint and contrast the method against a two pass, 3D radial Linear Combination SSFP (LC-SSFP) method. 3D radial FS-ATR offers complete visualization of the articular cartilage surface, further enhancing the ability to appreciate submillimeter cartilage defects which is useful for longitudinal research studies of cartilage degeneration and simultaneous whole organ assessment.