Background and purpose

The contents and subtypes of sacral cysts are sophisticated in many cases. We applied multiple dimensional magnetic resonance imaging (MRI) reconstruction to preoperatively clarify the specific subtype of sacral meningeal cysts.

Materials and methods

We preoperatively used multimodal neural reconstruction MRI sequences to evaluate 76 patients with sacral cysts. The linear nerve roots were precisely traced based on sagittal or coronal images processed at various angles and levels which was conducive to the design of the operation strategy.

Results

Cysts with nerve passage were detected in 47 cases (62%, 47/76), whereas cysts without nerve roots were detected in 24 cases (32%, 24/76). Five patients had mixed cysts with or without nerve roots. Intraoperative exploration results proved the high accuracy of image reconstruction; only one cyst without a nerve root was misdiagnosed prior to surgery.

Conclusion

MRI reconstruction based on the three-dimensional fast imaging employing steady-state acquisition T2 sequence precisely tracked the nerve roots of sacral cysts and guided the optimal strategy during surgery.

中文翻译：

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骶脑膜囊肿最佳手术策略的X线多维度重建

背景和目的

在许多情况下，骶骨囊肿的内容和亚型很复杂。我们应用多维磁共振成像 (MRI) 重建来术前明确骶脑膜囊肿的特定亚型。

材料和方法

我们术前使用多模态神经重建 MRI 序列来评估 76 例骶骨囊肿患者。基于不同角度和水平处理的矢状或冠状图像精确追踪线性神经根，有利于手术策略的设计。

结果

有神经根囊肿47例（62%，47/76），无神经根囊肿24例（32%，24/76）。五名患者有混合性囊肿，有或没有神经根。术中探查结果证明图像重建的准确性高；只有一个没有神经根的囊肿在手术前被误诊。

结论

基于稳态采集T2序列的三维快速成像的MRI重建精确追踪骶骨囊肿的神经根并指导手术过程中的最佳策略。