| 朱玉鹏,唐晓燕,孙磊,王绍华,段峰,张传玉,于腾波,郝大鹏.三维稳态进动结构相干序列显示膝关节前外侧韧带[J].中国医学影像技术,2018,34(5):765~769 |
| 三维稳态进动结构相干序列显示膝关节前外侧韧带 |
| Three-dimensional constructive interference in steady state sequence for displaying anterolateral ligament of knee joint |
| 投稿时间：2017-12-19 修订日期：2018-02-06 |
| DOI：10.13929/j.1003-3289.201712159 |
| 中文关键词: 前外侧韧带 三维稳态进动结构相干序列 图像处理,计算机辅助 磁共振成像 |
| 英文关键词:Anterolateral ligament Three-dimensional constructive interference in steady state sequence Image processing, computer-assisted Magnetic resonance imaging |
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| 中文摘要: |
| 目的 观察三维稳态进动结构相干（3D-CISS）序列显示膝关节前外侧韧带（ALL）的价值。方法 对30名健康志愿者行右侧膝关节MR检查，扫描序列包括轴位和冠状位脂肪抑制质子密度加权（FS-PDWI）及3D-CISS序列。对3D-CISS图像行MPR斜矢状位重建和CPR不同角度冠状位重建，CPR重建角度为0°、30°、60°、90°、120°、150°和180°；观察各序列图像ALL表现，并比较不同序列对ALL股骨部、半月板部、胫骨部、半月板附着点、股骨附着点和胫骨附着点的显示率。结果 3D-CISS序列CPR图像对ALL胫骨附着点和股骨附着点显示率均为96.67%（29/30），MPR图像均为93.33%（28/30），均优于FS-PDWI图像（P均<0.017）。3D-CISS序列CPR图像对ALL胫骨部、半月板部和半月板附着点的显示率分别为96.67%（29/30）、83.33%（25/30）和83.33%（25/30），均高于FS-PDWI图像（P均<0.05），对ALL股骨部的显示率与FS-PDWI图像差异无统计学意义（P=0.095）。结论 3D-CISS序列联合CPR图像可提高对ALL的显示率。 |
| 英文摘要: |
| Objective To observe the value of three-dimensional constructive interference in steady state (3D-CISS) sequence for displaying anterolateral ligament (ALL) of knee joint. Methods MR scans of right knee joint were performed on 30 healthy volunteers, and the protocol included axial and coronal fat saturation proton density weighted imaging (FS-PDWI) and 3D-CISS sequence. MRP and CPR (reconstructive angles including 0°, 30°, 60°, 90°, 120°, 150° and 180°) images were generated from of 3D-CISS sequence. The visibility rates of the femoral part, meniscal part, tibial part, meniscal insertion, femoral footprint and tibial footprint of ALL were compared among different protocols. Results The visibility rates of tibial footprint and femoral footprint of ALL on 3D-CISS CPR images were both 96.67% (29/30), and on 3D-CISS MPR images were both 93.33% (28/30), all of them were higher than those on FS-PDWI images (all P<0.017). The visibility rates of tibial part, meniscal part and meniscal insertion of ALL on 3D-CISS CPR images were 96.67% (29/30), 83.33% (25/30) and 83.33% (25/30), respectively, and all of them were higher than those on FS-PDWI images (all P<0.05). There was no statistical difference of visibility rate of femoral part between 3D-CISS CPR images and FS-PDWI images (P=0.095). Conclusion 3D-CISS sequence with CPR can significantly enhance the ability to identify ALL. |
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