| 刘慧君,孙燕萍,杜湘珂,周殿阁,张斌.不同MR扫描序列对髌股关节软骨病变的评价[J].中国医学影像技术,2002,18(5):471~473 |
| 不同MR扫描序列对髌股关节软骨病变的评价 |
| Different MR Sequences in Evaluation of Abnormalities of Patellofemoral Joint Cartilage |
| 投稿时间：2002-02-15 |
| DOI： |
| 中文关键词: 髌股关节 软骨 磁共振成像 |
| 英文关键词: Patellofemoral joint Cartilage Magnetic resonance imaging |
| 基金项目: |
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| 中文摘要: |
| 目的 评价SE序列、FSE序列、二维SPGR序列及三维脂肪抑制SPGR序列对髌股关节软骨病变的诊断价值。方法 5例尸体膝关节,关节腔内注射40ml生理盐水。所有髌股关节均作常规自旋回波(SE)序列T1WI、快速自旋回波(FSE)序列T2WI和PDWI、二维毁损梯度回波(2D SPGR)序列以及三维脂肪抑制毁损梯度回波(3D FS-SPGR)序列轴位扫描。计算每种序列诊断髌股关节软骨病变的敏感性、特异性和总符合率。结果 在3D FS-SPGR序列正常髌股关节软骨表现为三层结构,其诊断髌股关节软骨病变的敏感性、特异性和总符合率分别为92%、86%和90%。结论 在髌股关节软骨病变的诊断中,3D FS-SPGR序列的特异性及敏感性较SE、FSE和2D SPGR序列要高,是观察关节软骨结构的最佳方法。 |
| 英文摘要: |
| Objective To evaluate the diagnostic value of spin echo(SE) sequence,fast spin echo(FSE)sequence,two-dimensional spoiled gradient recalled echo(2D SPGR) sequence and three-dimensional fat-suppressed spoiled gradient recalled echo(3D FS-SPGR) sequence in the assessment of abnormalities of patellofemoral joint cartilage.Methods Five cadaveric knees were injected 40ml of saline prior to imaging. The following sequences were used in imaging of all: T1-weighted SE sequence, multiecho T2-weighted and proton-density-weighted SE sequence, 2D SPGR sequence and a 3D FS-SPGR sequence. The sensitivity,specificity and accuracy of each sequence were calculated. Results The 3D FS-SPGR sequence provided the best depiction of cartilage structure and internal detail, the sensitivity,specificity and accuracy of which were 92%,86%,90%. Conclusion 3D FS-SPGR sequence can provide higher sensitivity and specificity than SE, FSE and 2D SPGR sequences for the detection of patellofemoral joint cartilage abnormalities. 3D FS-SPGR is the best sequence for chondral observation. |
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