Abstract #1116

Positive visualization of interventional devices with susceptibility mapping using the Turbo Spin Echo Sequence

caiyun shi¹, guoxi xie^1,2, xiaoyong zhang^1,3, min chen¹, shi su¹, hairong zheng¹, ying dong⁴, jim Ji⁴, and xin liu¹

¹Shenzhen Institutes of Advanced Technology, shenzhen, China, People's Republic of, ²Beijing Center for Mathematics and Information Interdisciplinary Sciences, beijing, China, People's Republic of, ³Centers for Biomedical Engineering, College of Information Science and Technology, University of Science and Technology of China, hefei, China, People's Republic of, ⁴Department of Electrical and Computer Engineering, Texas A&M University, Texas, TX, United States

Susceptibility-based positive contrast MR imaging exhibits excellent efficacy for visualizing the MR compatible metallic devices, by taking advantage of their high magnetic susceptibility. In this work, a novel method is developed to accelerate the susceptibility-based positive contrast MR imaging. The method is based on a modified turbo spin echo (TSE) sequence and a kernel deconvolution algorithm with a regularized ℓ1 minimization to achieve positive contrast imaging.

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