Evaluation of the correction effect ofdiffusion-weighted imaging with phased array uniformity enhancement and re-verse phase-encoding polarity on the hyperintense artifacts in brain images of infants and toddlers
XU Qifei
LI Baige
ZHANG Yusong
ZHU Shicai
WANG Houjun
ZHANG Yan
Abstract：Objective To evaluate the correction effect of diffusion-weighted imaging with phased array uniformity en-hancement and reverse phase-encoding polarity(PURE-R-DWI)on the hyperintense artifacts in brain images of infants and tod-dlers.Methods Firstly,the water phantom experiment was performed by using 1.5T MRI conventional DWI and PURE-R-DWI sequences and then,51 cases of infants and toddlers(0～2-year-old)with premature birth or nervous system symptoms were scanned with two schemes of DWI.Two senior radiologists reviewed the whole brain images double-blindly and scored these hyper-intense artifacts of them.The scoring results were analyzed by paired t-test.Results The image quality of PURE-R-DWI sequence was better than that of conventional DWI in water phantom experiment and the whole brain images of infants and toddlers.The image artifact score of PURE-R-DWI sequence was significantly lower than that of conventional DWI se-quence(t=52.049,P<0.05).Conclusion PURE-R-DWI sequence can effectively correct the hyper-intense artifacts of the brain images of infants and toddlers,significantly improve the image quality,and replace conventional DWI inthe brain MRI of infants and toddlers.
Keywords：PrematureBrainMagnetic resonance image
Publication Date：2024-10-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 5-8 )