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Abstract #4183

Volume-Selective 3D Ultrashort Echo-time Imaging

Jinil Park1 and Jang-Yeon Park2,3
1Biomedical Institute for Convergence at SKKU, Sungkyunkwan University, Suwon, Korea, Republic of, 2Department of Biomedical engineering, Sungkyunkwan University, Suwon, Korea, Republic of, 3Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University, Suwon, Korea, Republic of

Non-Cartesian radial sampling can preserve the spatial resolution without aliasing when under-sampling, but makes streak artifacts and internal structure identification difficult.Because C-UTE uses non-selective rectangular pulses to acquire projection data containing information about the entire object, setting the ROI smaller than the object further increases the under-sampling problem. the recently developed VS-UTE uses selective SINC pulses, and it's a method to minimize under-sampling problems. In this study, we demonstrate the ability of VS-UTE to maintain image quality when the number of projection views is under-sampled or when the imaging volume is chosen smaller than the imaging target.

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