Evolution of Image Quality in View-Shared Time-Resolved 3D CE-MRA

Casey P. Johnson¹, Thomas W. Polley¹, James F. Glockner¹, Phillip M. Young¹, Stephen J. Riederer¹

In time-resolved 3D CE-MRA, incomplete view sharing will result in degradation of image quality. This has been observed in traditional imaging and new applications. The loss of image quality is dependent on the specific time-resolved sequence parameters used. In this work, the evolution of image quality as view sharing progresses is quantitatively assessed in phantoms and in vivo CE-MRA calf studies for various sequence parameters. A fundamental tradeoff between vessel signal and sharpness and its relation to the sequence temporal footprint is investigated. Implications for various applications are discussed.