Kim K Y, Kim Y T, Lee C S, Shin M J
Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan, Medical College, Seoul, Korea.
Orthopedics. 1992 Apr;15(4):493-7. doi: 10.3928/0147-7447-19920401-18.
A consecutive series of 28 patients with lumbar herniated intervertebral disc (HIVD) who exhibited positive magnetic resonance imaging (MRI) findings was analyzed and compared with operative findings to define the type of disc herniation. This prospective study showed that the overall accuracy of MRI in predicting the types of HIVD was 80.6%. Proton density image was the most helpful in differentiating protruded discs from extruded ones. Disruption of "posterior longitudinal ligament line," defined on T2-weighted sagittal image, was reliable in differentiating a transligamentous disc from subligamentous one. Sequestered disc could be more accurately diagnosed with Gadolinium-DTPA enhancement, which showed anterior rim enhancement of the sequestered portion on T1-weighted axial image.
对连续28例腰椎间盘突出症（HIVD）患者进行分析，这些患者的磁共振成像（MRI）结果呈阳性，并与手术结果进行比较，以确定椎间盘突出的类型。这项前瞻性研究表明，MRI预测HIVD类型的总体准确率为80.6%。质子密度图像在区分突出型椎间盘和脱出型椎间盘方面最有帮助。在T2加权矢状位图像上定义的“后纵韧带线”中断，在区分经韧带型椎间盘和韧带下型椎间盘方面是可靠的。钆喷酸葡胺增强扫描能更准确地诊断游离型椎间盘，在T1加权轴位图像上显示游离部分的前缘强化。
