Meeting Banner
Abstract #4248

Reconstruction of under-sampled Propeller gradient-echo image using projection onto convex sets based multiplexed sensitivity-encoding (POCSMUSE)

Hing-Chiu Chang1,2, Mei-Lan Chu2, and Nan-Kuei Chen2

1Department of Diagnostic Radiology, The University of Hong Kong, Hong Kong, Hong Kong, 2Brain Imaging and Analysis Center, Duke University Medical Center, Durham, NC, United States

The Propeller technique is a useful acquisition scheme and reconstruction method to reduce motion artifact. However, the higher specific absorption rate (SAR) of RF pulse at high-field magnetic strength can limit the number of multiple slices for a given TR, which in turn reduces the efficiency of acquisition, especially for Propeller-FSE sequence. A possible solution is to reduce the echo-train-length with under-sampling of data of each blade. In this study, we propose to apply POCSMUSE instead of SENSE reconstruction and Propeller reconstruction, to reconstruct the image from all under-sampled blade data with reduced noise amplification. The data acquired from brain and liver using Propeller-GRE will be used to test purposed POCSMUSE algorithm.

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

Join Here