Meeting Banner
Abstract #2508

Highly accelerated non-contrast-enhanced MR angiography of the renal arteries featuring sparse, incoherent sampling and L1-regularized iterative SENSE

Michaela Schmidt 1 , Stefan Haneder 2 , Ulrike I. Attenberger 2 , Melissa M. Ong 2 , Mariappan Nadar 3 , Peter Schmitt 1 , Xiaoming Bi 4 , Stefan O. Schoenberg 2 , and Michael O. Zenge 1

1 Siemens AG Healthcare Sector, Erlangen, Germany, 2 University Medical Centre Mannheim, Institute of Clinical Radiology and Nuclear Medicine, Germany, 3 Siemens Corporate Technology, Princeton, NJ, United States, 4 Siemens Healthcare, LA, CA, United States

Inversion-prepared b-SSFP imaging is a suitable approach to perform non-contrast-enhanced (non-CE) MR angiography (MRA) of the renal arteries. The current study aims at a radical acceleration of the data acquisition by combining sparse, incoherent sampling with L1-regularized iterative SENSE reconstruction. Non-CE MRA was performed in 20 healthy volunteers with sub-sampling rates of 6.4, 9.0 and 11.5 and compared to a reference protocol with rate 2 GRAPPA acceleration. In comparison to the reference protocol, the proposed highly accelerated imaging method performed very competitively with acceleration rates up to 9 with radical data acquisition time reductions up to a factor of 5.

This abstract and the presentation materials are available to members only; a login is required.

Join Here