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作者

Nan Jian Nan Lin Mi-Mi Tian Shuai Zhang Guan Li Hui Zhao Lian-Xiang Xiao Wen-Jia Liang Xiang-Tao Lin

作者单位

College of Radiology,Taishan Medical University,Taian,China CT Department,Heze Municipal Hospital,Heze,China Department of Radiology,Shandong Provincial Hospital Affiliated to Shandong University,Jinan,China School of Basic Medical Science,Shandong University,Jinan,China Shandong Medical Imaging Research Institute,Shandong University,Jinan,China School of Medicine,Shandong University,Jinan,China

刊名

Neuroradiology

页码

1-11

ISSN

0028-3940;1432-1920

关键词

Fetal spine Costal element ossification center Sacrum

分类号

615.842

摘要

Purpose This postmortem magnetic resonance imaging study of the fetal spine aimed to describe the timing of appearance, shape, volume, and relative positions of the S1–S3 costal element ossification centers . Methods We obtained sagittal 3D dual-echo steady-state with water excitation T2 images of the entire spine in 71 fetuses , 17–42 weeks). Computed tomography and histological examinations were performed on two fetal specimens to validate the MR images. The presence/absence of each sacra...更多

Purpose This postmortem magnetic resonance imaging study of the fetal spine aimed to describe the timing of appearance, shape, volume, and relative positions of the S1–S3 costal element ossification centers . Methods We obtained sagittal 3D dual-echo steady-state with water excitation T2 images of the entire spine in 71 fetuses , 17–42 weeks). Computed tomography and histological examinations were performed on two fetal specimens to validate the MR images. The presence/absence of each sacral CEOC was recorded according to the GA. CEOC volume was measured. We analyzed the CEOC position relative to the vertebral column and ilium. Results The S1, S2, and S3 CEOCs first appeared at 23, 22, and 29 weeks, respectively. The S1 and S2 CEOCs could be detected in all fetuses with GAs of ≥ 30 weeks and ≥ 35 weeks, respectively, while the S3 CEOCs were variably present until term. The percentages of detection of the S1 and S2 CEOCs were significantly greater than that of the S3 CEOCs at each GA. At S1 and S2, the CEOC volume increased exponentially with GA. The relative positions of the S1 and S2 CEOCs, but not the S3 CEOCs, significantly correlated with GA . Conclusion We have described the timeline of appearance as well as the volume and position of the S1–S3 CEOCs in the fetal spine on postmortem MRI according to GA.收起

学科

【SCI学科】CLINICAL NEUROLOGY;RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING;NEUROIMAGING 【ESI学科】NEUROSCIENCE & BEHAVIOR

影响因子

2016年:2.093;2015年:2.274;2014年:2.485;2013年:2.374;2012年:2.7

文献类型

期刊

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