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Abstract #3715

Evaluation of fetal spinal anatomy and vertebral malformation using three-dimensional T2-star FFE sequence at 3T: clinical experience

Shuang He1, Qiang Lei1, Xiaoli Zhao1, Ya Yang1, Zhigang Wang1, Hua Lai1, Xiaoyong Zhang2, and Xilin Wen1
1Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China, 2Philips Healthcare, Chengdu, China


Magnetic resonance image (MRI) has been increasingly used to evaluate fetal malformations. Currently, the commonly used fetal spine scanning sequences include conventional 2D Single-Shot TSE (2D SSH TSE) and 2D balanced fast field echo sequence (2D BTFE), However, 2D MR sequences have disadvantages such as unclear display of tiny structures especially the fetal cervical vertebra, furthermore the image quality is strongly affected by fetal postures. In this study we compared 3D T2-star-weighted FFE sequence with conventional 2D SSH TSE sequence and 2D BTFE sequence. The 3D T2-star FFE sequence has high prenatal diagnosis value for fetal spine malformation, and can be used as an important supplementary sequence for fetal spine diagnosis in clinical practice.

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