| 岳云龙,韩鸿宾.应用改良的FS-3D-TrueFISP序列诊断膝关节软骨缺损性病变[J].中国医学影像技术,2007,23(1):105~108 |
| 应用改良的FS-3D-TrueFISP序列诊断膝关节软骨缺损性病变 |
| Application of improved FS-3D-TrueFISP sequence in diagnosis of hyaline cartilage defects in knee joint |
| 投稿时间：2006-08-14 修订日期：2006-12-22 |
| DOI： |
| 中文关键词: 软骨,关节 磁共振成像 膝损伤 |
| 英文关键词:Cartilage, articular Magnetic resonance imaging Knee injuries |
| 基金项目:本研究受新世纪优秀人才支持计划(NCET)资助(985-2-070-113)。 |
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| 中文摘要: |
| 目的 以关节镜为金标准,评价经过改良的脂肪抑制三维真实稳态自由进动序列(FS-3D-TrueFISP)对于膝关节软骨缺损性病变的诊断价值。方法 采用经过改良的FS-3D-TrueFISP序列及脂肪抑制三维快速小角度激发序列(FS-3D-FLASH)对21例膝关节病变患者进行检查,其中13例患者同时行脂肪抑制快速自旋回波质子密度加权序列(FS-FSE-PDWI)扫描,将各序列诊断结果与关节镜分级诊断结果相对照。结果 与关节镜结果相对照FS-3D-TrueFISP序列对于软骨缺损行病变的敏感性、特异度及表示准确度的Kappa值分别为83.3％、99.2％、0.77;FS-3D-FLASH序列相应各值分别为80.5％、97.7％、0.68;FS-FSE-PDWI序列分别为57.1％、97.6％、0.60。结论 经过合理改良后的FS-3D-TrueFISP序列对于膝关节软骨缺损性病变具有较高的敏感性,应用这一技术有助于膝关节软骨缺损性病变的诊断。 |
| 英文摘要: |
| Objective To evaluate the value of improved fat-suppressed-3D-true fast imaging with steady-state precession (FS-3D-TrueFISP) sequence for detecting hyaline cartilage defects of knee joint, using arthroscopy as the gold standard. Methods Twenty-one patients were imaged with fat-suppressed-3D-fast low angle shot (FS-3D-FLASH) sequence and FS-3D-TrueFISP sequence with improved imaging parameters, and 13 patients imaging with fat-suppressed-fast spin echo-proton density weight image (FS-FSE-PDWI) sequence at same time, then compared the imaging findings with arthroscopy. Results Comparing with arthroscopy, the sensitivity, specificity and Kappa were 83.3%, 99.2% and 0.77 respectively with FS-3D-TrueFISP; 80.5%, 97.7% and 0.68 respectively with FS-3D-FLASH sequence; 57.1%, 97.6% and 0.60 respectively with FS-FSE-PDWI sequence. Conclusion The improved FS-3D-TrueFISP sequence has higher sensitivity for detecting hyaline cartilage defects in knee joint. Use of this technique may strengthen the role of MR imaging for detecting hyaline cartilage defects. |
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