Deep learning reconstruction in pediatric brain MRI: comparison of image quality with conventional T2-weighted MRI View Full Text


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Article Info

DATE

2022-09-26

AUTHORS

Soo-Hyun Kim, Young Hun Choi, Joon Sung Lee, Seul Bi Lee, Yeon Jin Cho, Seung Hyun Lee, Su-Mi Shin, Jung-Eun Cheon

ABSTRACT

IntroductionDeep learning–based MRI reconstruction has recently been introduced to improve image quality. This study aimed to evaluate the performance of deep learning reconstruction in pediatric brain MRI.MethodsA total of 107 consecutive children who underwent 3.0 T brain MRI were included in this study. T2-weighted brain MRI was reconstructed using the three different reconstruction modes: deep learning reconstruction, conventional reconstruction with an intensity filter, and original T2 image without a filter. Two pediatric radiologists independently evaluated the following image quality parameters of three reconstructed images on a 5-point scale: overall image quality, image noisiness, sharpness of gray–white matter differentiation, truncation artifact, motion artifact, cerebrospinal fluid and vascular pulsation artifacts, and lesion conspicuity. The subjective image quality parameters were compared among the three reconstruction modes. Quantitative analysis of the signal uniformity using the coefficient of variation was performed for each reconstruction.ResultsThe overall image quality, noisiness, and gray–white matter sharpness were significantly better with deep learning reconstruction than with conventional or original reconstruction (all P < 0.001). Deep learning reconstruction had significantly fewer truncation artifacts than the other two reconstructions (all P < 0.001). Motion and pulsation artifacts showed no significant differences among the three reconstruction modes. For 36 lesions in 107 patients, lesion conspicuity was better with deep learning reconstruction than original reconstruction. Deep learning reconstruction showed lower signal variation compared to conventional and original reconstructions.ConclusionDeep learning reconstruction can reduce noise and truncation artifacts and improve lesion conspicuity and overall image quality in pediatric T2-weighted brain MRI. More... »

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1-8

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    http://dx.doi.org/10.1007/s00234-022-03053-1

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    PUBMED

    https://www.ncbi.nlm.nih.gov/pubmed/36156109


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