髌股关节软骨退变的MRI和关节镜对照研究

目的：以关节镜为标准，确定３Ｄ－Ｖｏｌｕｍｅ－ＦＦＦ－Ｔ１ＷＩ对髌股关节软骨退变的诊断价值。方法：４８个人膝关节行关节镜检查及３Ｄ－Ｖｌｏｕｍｅ－ＦＦＦ－Ｔ１ＷＩ矢状位扫描。矢状位图像行多平面重建（ＭＰＲ）处理。ＭＲ图像每个髋股关节分内、外髌骨面、股骨滑车面与关节镜图像逐一对照分析。结果：关节镜下发现１０２个病变软骨面，３Ｄ－Ｖｏｌｕｍｅ－ＦＦＦ－Ｔ１ＷＩ对软骨病变的分级和关切镜分级间有显著正相关性（Ｐ〈０．０１）。结论：３Ｄ－Ｖｏｌｕｍｅ－ＦＦＦ－Ｔ１ＷＩ结合ＭＰＲ评价髌股关节软骨退弯和关节镜评价关节软骨有很好的相关性、互补性。

Comparative Study of MRI and Arthroscopy in Patellofemoral Articular Cartilage Degeneration

Objective: The value of 3D-Volume-FFE-T1 WI MRI sequence imaging was determined for detecting patellofemoral articular cartilage degeneration using arthroscopy as the standard of reference. Methods: Forty-eight knee joints underwent subsequent arthroscopy were imaged with three-dimensional sagittal FFE-T1 WI. Sagittal images were administrated with multiple-planar reconstrution (MPR) techniques. Each patellofemoral articular surface was divided into media and lateral patellar facets, trochlear facets compared with arthroscopy face to face. Results: Arthroscopy showed 102 cartilage defects. Good correlation existed between MR gradation of 3D-Volume-FFE-T1WI and arthroscopy gradation in assessment of cartilage abnormalities ( P <0.01). Conclusions: Good correlation and mutual aid existed between arthroscopy and 3D-Volme-FFE-T1WI combined with MPR techniques in assessment of articular cartilage.