脊髓拴系综合征稳态成像中的高分辨率相长干涉：技术说明
High-resolution constructive interference in steady-state imaging in tethered cord syndrome: technical note.
作者信息
Rosahl Steffen K, Kassem Osama, Piepgras Uwe, Hellwig Dieter, Samii Madjid
机构信息
Department of Neurosurgery, Albert-Ludwigs-University, D-79106 Freiburg, Germany.
出版信息
Surg Neurol. 2005 Apr;63(4):372-4. doi: 10.1016/j.surneu.2004.05.034.
BACKGROUND
Differentiation between nerve roots and the tethered filum terminale in magnetic resonance images remains challenging. It is, however, crucial to select patients for surgical intervention.
METHOD
In 1 patient with progressive and 2 patients with stable clinical signs of tethered cord syndrome (TCS), images reconstructed from a 3D constructive interference in steady-state (CISS) sequence were compared with those obtained from a regular T2-weighted fast spin echo sequence.
RESULTS
Nerve roots of the cauda equina were suppressed, whereas visualization of the filum terminale was much improved in high-resolution CISS sequences. In addition, the level of adhesion of the filum could be localized in relation to elements of the spinal cord. The imaging results were confirmed during surgery and the patient improved considerably after the intervention. The advantages of CISS were also apparent in 2 other patients who are still being observed.
CONCLUSION
Constructive interference in steady-state imaging should be considered in the presurgical routine for patients with TCS.
背景
在磁共振图像中区分神经根和终丝粘连仍然具有挑战性。然而，为手术干预选择患者至关重要。
方法
对1例患有进行性脊髓拴系综合征（TCS）临床症状的患者以及2例患有稳定脊髓拴系综合征临床症状的患者，将从三维稳态构成干扰序列（CISS）重建的图像与常规T2加权快速自旋回波序列获得的图像进行比较。
结果
在高分辨率CISS序列中，马尾神经根受到抑制，而终丝的可视化得到显著改善。此外，终丝的粘连水平可相对于脊髓的结构进行定位。手术中证实了成像结果，干预后患者有显著改善。CISS的优势在另外2例仍在观察中的患者中也很明显。
结论
对于患有脊髓拴系综合征的患者，术前常规检查应考虑使用稳态构成干扰成像。
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