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Abstract #2360

Reducing Streak Artifacts in 3D Radial Imaging Using Volume-Selective Signal Acquisition

Jinil Park1 and Jang-Yeon Park1,2
1Biomedical Engineering, Sungkyunkwan University, Suwon, Korea, Republic of, 2Center for Neuroscience Imaging Research, Institute for Basic Science, Suwon, Korea, Republic of

The non-Cartesian sampling can obtain the image even for the number of data that does not satisfy Nyquist, but the under-sampled image is accompanied by streak artifact. Since the non-selective pulse used in conventional 3D radial UTE(C-UTE) is excite unwanted areas out of FOV, streak artifacts may appear in the image when under-sampling. Volume-Select UTE(VS-UTE) performs spin excitation using frequency-selective SINC pulses. Accordingly, the proposed method effectively suppresses the signal outside the FOV, which reduces streak artifacts. The purpose of this study is to introduce a VS-UTE sequence and to confirm that the streak artifacts are reduced effectively.

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