Schädel-Höpfner M, Iwinska-Zelder J, Böhringer G, Braus T, Klose K J, Gotzen L
Klinik für Unfallchirurgie, Philipps-Universität Marburg.
Handchir Mikrochir Plast Chir. 2001 Jul;33(4):234-8. doi: 10.1055/s-2001-16588.
In a prospective study, 45 patients with fractures of the distal radius and radiologically suspected tears of the scapholunate interosseous ligament were examined. Magnetic resonance imaging was performed prior to wrist arthroscopy. The latter examination gave the definite diagnosis. MRI was performed in conventional technique (without contrast medium) in 25 cases and after additional intravenous injection of contrast medium in the remaining 20 patients. The images were obtained with a 1.0-T clinical imager using a T(2)-weighted turbo spin echo sequence (slice 3 mm, transversal) and a FLASH 2D sequence (slice 2 mm, oblique/coronal). Three independent observers assessed the MRI scans before arthroscopy was performed. The correct diagnosis was made by MRI in 76 %. Overall sensitivity and specificity came to 71 % and 86 %, respectively. The use of intravenously applied contrast medium did not improve MRI accuracy. In conclusion, MRI is not recommended for the diagnosis of scapholunate ligament tears. Presumably, the results of MRI could be improved by a more sophisticated technique.
在一项前瞻性研究中，对45例桡骨远端骨折且放射学怀疑舟月骨间韧带撕裂的患者进行了检查。在腕关节镜检查之前进行了磁共振成像（MRI）。后者检查给出了明确诊断。25例采用传统技术（无造影剂）进行MRI检查，其余20例患者在静脉注射造影剂后进行检查。使用1.0-T临床成像仪，采用T(2)加权快速自旋回波序列（层厚3mm，横断面）和FLASH 2D序列（层厚2mm，斜位/冠状位）获取图像。在进行关节镜检查之前，由三名独立观察者评估MRI扫描结果。MRI做出正确诊断的比例为76%。总体敏感性和特异性分别为71%和86%。静脉注射造影剂并未提高MRI的准确性。总之，不推荐使用MRI诊断舟月韧带撕裂。推测，采用更先进的技术可能会提高MRI的诊断结果。
