Meeting Banner
Abstract #2492

Compensating for Bulk Motion in Feed and Wrap Renal Dynamic Radial VIBE DCE-MRI using Bulk Motion Removal and Non-Rigid Registration

Sila Kurugol1, Onur Afacan1, Catherine Seager1, Richard S Lee1, Jeanne S Chow1, and Simon K. Warfield1

1Boston Children's Hospital and Harvard Medical School, Boston, MA, United States

Dynamic Radial VIBE DCE-MRI enables motion-robust imaging with high spatiotemporal resolution for accurate estimation of kidney function. However, in feed and wrap DCE-MRI, bulk motion during infant’s sleep reduces the quality of images affected by motion and limits clinical utility of this method for imaging without sedation. This work evaluated the ability of detecting bulk motion using the center-of-k-space line, removing corrupted volumes, and compensating for motion using non-rigid registration for improved parameter estimation accuracy. Results showed that volumes affected by motion were successfully detected and removed in all patients, and the goodness-of-fit to the tracer kinetic model was improved.

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

Join Here