Journal of Diagnostics Concepts & Practice >

2021 , Vol. 20 >Issue 04: 378 - 383

DOI: https://doi.org/10.16150/j.1671-2870.2021.04.009

Original articles

Application value of new accelerating technology based on constellation shuttling imaging in brain MRI

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  • Department of Radiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China

Received date: 2021-02-18

  Online published: 2022-06-28

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Abstract

Objective: To evaluate the image quality of brain MRI sequences accelerated by constellation shuttling imaging (uCS) to provide a basis for clinical application. Methods: Twenty volunteers underwent brain MRI scanning （TSE axial T1WI, T2-FLAIR, sagittal T1WI and GRE sagittal 3D-T1WI） twice using parallel imaging (routine scanning) and corresponding uCS accelerated acquisition. The evaluation of images in each sequence was conducted through combining the subjective (Likert five-point scale method, image artifact and overall quality) and objective (signal-to-noise ratio measurement) methods. Results: The scanning time of using uCS in each MRI sequence was shorter than that of conventional scanning. The total scanning time of uCS in each volunteer was 542 s, while that of conventional scanning was 735 s, which decreased 26.3%. The scanning time of 3D sequence was nearly reduced 39%. There is no statistically difference between uCS and conventional sequence in subjective evaluation (overall image quality and image artifact degree). The SNR of uCS axial T1WI and sagittal T1WI sequences was significantly higher than those of conventional axial T1WI and sagittal T1WI sequences(P<0.05). In addition, there was no difference between uCS and conventional scanning in SNR of FLAIR and 3D-T1WI sequences. Conclusions: Compared with conventional scanning, uCS can significantly accelerate the acquisition of brain MR images without loss of image quality.

Key words： magnetic resonance imaging; constellation shuttling imaging; compressedsensing; image quality

Cite this article

ZHANG Xuekun, LI Yan, YAN Fuhua, ZHAO Hongfei, SONG Qi . Application value of new accelerating technology based on constellation shuttling imaging in brain MRI[J]. Journal of Diagnostics Concepts & Practice, 2021 , 20(04) : 378 -383 . DOI: 10.16150/j.1671-2870.2021.04.009

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