Diagnosis of Internal Derangement of the Knee at 3.0-T MR Imaging: 3D Isotropic Intermediate-weighted versus 2D Sequences

作者：Jee Young Jung, Young Cheol Yoon, Jong Won Kwon, Jin Hwan Ahn, Bong‐Keun Choe · 发表于：Radiology · 年份：2009 · DOI：10.1148/radiol.2533090457 · 被引用次数：114 · 研究领域：Knee injuries and reconstruction techniques、Total Knee Arthroplasty Outcomes、Lower Extremity Biomechanics and Pathologies

PURPOSE: To compare three-dimensional (3D) isotropic fast spin-echo (SE) intermediate-weighted magnetic resonance (MR) imaging with two-dimensional (2D) fast SE MR imaging-both performed at 3.0 T-for performance in the diagnosis of internal derangements of the knee. MATERIALS AND METHODS: The institutional review board approved this HIPAA-compliant study, and the requirement for informed consent was waived. The authors retrospectively reviewed 87 knee MR images obtained in 85 patients who had undergone both 3D isotropic and 2D MR examinations of the knee at 3.0 T and subsequent arthroscopic surgery. The 2D MR images included intermediate-weighted coronal and sagittal images, intermediate-weighted axial images with fat saturation, and T2-weighted sagittal images. The 3D isotropic MR images were obtained with multiplanar reformation (MPR), a fast SE intermediate-weighted sequence, and a reconstruction voxel size of 0.5 x 0.5 x 0.5 mm. Two radiologists retrospectively and independently evaluated the 2D and 3D data sets, at different sessions, for the presence of medial meniscus (MM), lateral meniscus (LM), anterior cruciate ligament (ACL), and posterior cruciate ligament (PCL) tears. These interpretations were compared with the arthroscopic surgery findings. The statistical differences between the sensitivities, specificities, and accuracies of the two methods were determined at McNemar testing, with surgical findings serving as the reference standard. Interobserver agreement wa...