Meeting Banner
Abstract #1185

Iterative Reconstruction for Enhanced Through-Plane Resolution T2-Weighted Spin-Echo Imaging of the Prostate

Eric A Borisch1, Roger C Grimm1, Soudabeh Kargar2, Akira Kawashima3, Joshua D Trzasko1, and Stephen J Riederer1
1Radiology, Mayo Clinic, Rochester, MN, United States, 2Radiology, University of Wisconsin-Madison, Madison, WI, United States, 3Radiology, Mayo Clinic, Phoenix, AZ, United States

A previously described method for producing an image stack with enhanced through-plane resolution from an acquired set of overlapping thicker 2D slices is limited by noise enhancement when a linear reconstruction is used. To improve the resulting sharpness and noise performance of the output images, a sparsity-regularized (wavelet) full forward model based iterative reconstruction is developed. Initial results with a composite-splitting gradient descent solver provide promising noise and resolution enhancement performance. Future work includes refinements to the forward model and improving optimization convergence of the solver through momentum-based algorithms.

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

Join Here