Schulte T L, Heidenreich J O, Schilling A M, Stendel R, Pietilä T A, Hopfenmüller W, Brock M, Wolf K-J
Department of Orthopedics, University Hospital of Münster, Münster, Germany.
Eur J Radiol. 2004 Dec;52(3):224-8. doi: 10.1016/j.ejrad.2003.11.022.
Comparison of metric analysis of spinal structures, exemplarily of the ligamentum flavum, obtained with computed tomography (CT) (soft tissue window and bone window) and magnetic resonance imaging (MRI) (T1 and T2 weighted images).
Forty-six lumbar ligamenta flava of 46 patients (25 women and 21 men) were examined at a Somatom Plus 4 (Siemens, Erlangen, FRG) and at a 1.5 T clinical scanner (Magnetom Vision, Siemens, Erlangen, FRG). Two independent neuroradiologists measured the thickness of the ligamenta flava in mm. Statistics included Pearson's correlation coefficient and the intra-class correlation coefficient.
Mean values did not differ significantly. The correlation coefficients varied between 0.69 and 0.98. The best correlation occurred comparing the same techniques in different windowing and weighting (CT: r = 0.98; MRI: r = 0.95). Correlating different techniques the combination of CT bone window and T1 weighted images presented the best result (r = 0.75).
Because of the excellent correlation between the examined techniques CT as well as MRI can equally be used to measure distances of spinal structures.
比较通过计算机断层扫描（CT）（软组织窗和骨窗）和磁共振成像（MRI）（T1和T2加权图像）获得的脊柱结构（以黄韧带为例）的测量分析结果。
在一台Somatom Plus 4（西门子，埃尔朗根，德国）和一台1.5T临床扫描仪（Magnetom Vision，西门子，埃尔朗根，德国）上对46例患者（25名女性和21名男性）的46条腰椎黄韧带进行检查。两名独立的神经放射科医生以毫米为单位测量黄韧带的厚度。统计学分析包括Pearson相关系数和组内相关系数。
平均值无显著差异。相关系数在0.69至0.98之间变化。在比较不同窗宽和加权的相同技术时相关性最佳（CT：r = 0.98；MRI：r = 0.95）。在关联不同技术时，CT骨窗和T1加权图像的组合呈现出最佳结果（r = 0.75）。
由于所检查技术之间具有良好的相关性，CT和MRI均可同样用于测量脊柱结构的距离。
