Objective To investigate the value of 3D-FIESTA sequence of MRI in fetal spinal malformation.Methods MRI spinal images of 58 fetuses were analyzed retrospectively.All pregnant women were diagnosed with suspected spinal abnormalities by prenatal ultrasound before MRI acquisition.Grade the image quality and diagnostic value of 2D-FIESTA and 3D-FIESTA sequences,and compare the image quality of the two groups.Results A total of 58 fetal spinal images were obtained by scanning.There were 19 cases of hemivertebrae,7 cases of butterfly vertebrae,5 cases of fusion vertebrae,3 cases of coronary fissure,14 cases of small ossification center of vertebral,3 cases of narrow intervertebral space,4 cases of uneven ossification of vertebrae,and 14 cases of negative results.The excellent,medium and poor grading of 2D images accounted for 31.03％,60.34％and 8.63％respectively,while the 3D images accounted for 81.03％,15.52％and 3.45％respectively.The quality of 3D images is higher than that of 2D images,and the difference is statistically significant(P＜0.05).Conclusion 3D-FIESTA sequence can better display fetal spinal malformation than 2D.When 2D sequence scanning is not satisfactory,3D sequence can be added to improve the detection rate of fetal spinal malformation.
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