MR-guided discography using an open 1 Tesla MRI system
MR-guided discography using an open 1 Tesla MRI system
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DOI：
10.1007/s00330-010-2011-4
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发表时间：
2011-05
影响因子：
5.9
通讯作者：
F. Streitparth;T. Hartwig;B. Schnackenburg;Patrick Strube;Michael Putzier;Sascha S. Chopra;M. Bucourt;Bernd Hamm;Ulf Teichgräber
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文献类型：
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作者：
F. Streitparth;T. Hartwig;B. Schnackenburg;Patrick Strube;Michael Putzier;Sascha S. Chopra;M. Bucourt;Bernd Hamm;Ulf Teichgräber
目的探讨开放式1 T磁共振成像系统在椎间盘造影中的应用价值。使用1.0 T开放式MRI进行器械引导和成像。在交互式PDw TSE成像引导下进行初次椎间盘穿刺后，将1-2 ml钆造影剂盐水混合物注射到椎间盘中。记录注射过程中记忆痛的发生情况。获得了轴向和矢状面T1 w TSE图像（有和无脂肪饱和）。所有的MRI discogram进行了分析，由两个读者，谁是盲目的临床findings.ResultsOverall，穿刺针在目标光盘的位置是准确的实时MR指导下。在所有情况下，注射在技术上都是成功的。无严重并发症发生。平均手术时间为17 min（范围13-34 min）。当使用1：600的优化钆对比盐水混合物时，对比增强MR椎间盘造影的图像质量非常好。在48个受累节段中，16个节段出现记忆性疼痛。多平面动态成像有助于椎间盘穿刺，并提供高质量的MR椎间盘造影。
ObjectiveTo evaluate the feasibility of MR-guided discography using an open 1 Tesla MRI system.Methods48 disc segments of 41 patients scheduled for intradiscal thermal treatment, total disc replacement or spondylodesis were examined. A 1.0-T open MRI was used for instrument guidance and imaging. After primary disc puncture under guidance of interactive PDw TSE imaging, 1–2 ml of gadolinium contrast saline mixture was injected into the disc. The occurrence of memory pain during injection was recorded. Axial and sagittal T1w TSE images with and without fat saturation were obtained. All MRI discograms were analysed by two readers, who were blinded to the clinical findings.ResultsOverall, the placement of the puncture needle in the targeted disc was accurate under real-time MR guidance. Injections were technically successful in all cases. No major complications occurred. The mean procedure time was 17 min (range 13–34 min). Image quality of contrast-enhanced MR discograms was excellent when using an optimized gadolinium contrast saline mixture of 1:600. Memory pain was detected in 16 out of 48 affected segments.ConclusionMR-guided discography is accurate and safe. Multiplanar dynamic imaging facilitates the puncture of discs and provides high-quality MR discograms.