Kakitsubata Yousuke, Theodorou Daphne J, Theodorou Stavroula J, Trudell Debra, Clopton Paul L, Donich Alisara S, Lektrakul Nittaya, Resnick Donald
Department of Radiology, School of Medicine, University of California, San Diego, CA, USA.
Clin Orthop Relat Res. 2003 Feb(407):228-40. doi: 10.1097/00003086-200302000-00032.
The purpose of this study was to investigate the diagnostic capabilities of magnetic resonance discography in the detection of tears of the annulus fibrosus, and to compare the findings with those derived from conventional magnetic resonance imaging. Twenty-four intervertebral discs from cadavers were examined with magnetic resonance imaging and magnetic resonance discography, and anatomic correlation was done. Forty-six annular tears were documented on anatomic inspection of the specimens. Magnetic resonance discography allowed significantly better observation of radial than transverse annular tears, and identification of radial tears was significantly better than that of concentric tears. With magnetic resonance discography, detectability of concentric tears was not significantly better than that of the transverse tears. No significant differences in the detection of different types of annular tears were appreciated on the magnetic resonance images obtained before discography. Magnetic resonance discography allowed direct diagnosis of radial, transverse, and concentric tears in 100%, 57%, and 21% of specimens, respectively. With magnetic resonance imaging, the diagnosis of radial, transverse, and concentric tears was possible in 67%, 71%, and 21% of specimens, respectively. Magnetic resonance discography does well in the evaluation of the clinically important radial tears of the annulus fibrosus, although not uniformly well in the identification of other types of annular tears.
本研究的目的是调查磁共振椎间盘造影术在检测纤维环撕裂方面的诊断能力，并将结果与传统磁共振成像的结果进行比较。对来自尸体的24个椎间盘进行了磁共振成像和磁共振椎间盘造影检查，并进行了解剖学对照。在对标本进行解剖检查时记录了46处纤维环撕裂。磁共振椎间盘造影术对放射状纤维环撕裂的观察明显优于横向撕裂，对放射状撕裂的识别明显优于同心性撕裂。对于磁共振椎间盘造影术，同心性撕裂的可检测性并不明显优于横向撕裂。在椎间盘造影术前获得的磁共振图像上，不同类型纤维环撕裂的检测没有显著差异。磁共振椎间盘造影术分别在100%、57%和21%的标本中能够直接诊断放射状、横向和同心性撕裂。对于磁共振成像，分别在67%、71%和21%的标本中能够诊断放射状、横向和同心性撕裂。磁共振椎间盘造影术在评估临床上重要的纤维环放射状撕裂方面表现良好，尽管在识别其他类型的纤维环撕裂方面并不一致地表现良好。
