Cho Hee Woo, Suh Jin Suck, Park Jin Oh, Kim Hyoung Sik, Chung Soo Yoon, Lee Young Han, Hahn Seok
Department of Radiology, Research Institute of Radiological Science, YUHS-KRIBB Medical Convergence Research Institute, and Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea.
Department of Orthopedic Surgery, Yonsei University College of Medicine, Seoul, Korea.
Yonsei Med J. 2017 Nov;58(6):1186-1194. doi: 10.3349/ymj.2017.58.6.1186.
To evaluate the diagnostic performance of three-dimensional fast spin-echo (3D FSE-Cube) without fat suppression (NFS) for detecting knee lesions, using comparison to 3D FSE-Cube with fat suppression (FS).
One hundred twenty-four patients who underwent 1.5T knee magnetic resonance imaging (MRI) scans and 25 subsequent arthroscopic surgeries were retrospectively reviewed. Using arthroscopic results and two-dimensional images as reference standards, diagnostic performances of 3D FSE-Cube-NFS and FS imaging about lesions of ligament, meniscus, subchondral bone marrow edema (BME), and cartilage were compared. Scan parameters of 3D FSE-Cube imaging were previously optimized by a porcine knee phantom.
No significant differences were observed between detection rates of NFS and FS imaging for detecting lesions of meniscus and cartilage (p>0.05). However, NFS imaging had lower sensitivity for detection of medial collateral ligament (MCL) tears, and lower sensitivity and specificity for detection of BME lesions, compared to FS imaging (p<0.05).
3D FSE-Cube-NFS imaging showed similar diagnostic performance for detecting lesions of meniscus or cartilage compared to FS imaging, unlike MCL or BME lesions.
通过与三维快速自旋回波脂肪抑制序列(3D FSE-Cube-FS)对比,评估三维快速自旋回波序列(3D FSE-Cube)非脂肪抑制(NFS)技术检测膝关节病变的诊断效能。
回顾性分析124例行1.5T膝关节磁共振成像(MRI)检查并随后接受25例关节镜手术患者的资料。以关节镜检查结果及二维图像作为参考标准,比较3D FSE-Cube-NFS和FS成像对韧带、半月板、软骨下骨髓水肿(BME)及软骨病变的诊断效能。3D FSE-Cube成像扫描参数先前已通过猪膝关节模型进行优化。
NFS和FS成像对半月板及软骨病变的检出率差异无统计学意义(p>0.05)。然而,与FS成像相比,NFS成像对内侧副韧带(MCL)撕裂的检出敏感性较低,对BME病变的检出敏感性和特异性均较低(p<0.05)。
与FS成像相比,3D FSE-Cube-NFS成像对半月板或软骨病变的诊断效能相似,但对MCL或BME病变的诊断效能不同。