磁共振断层血管成像及神经内镜在判断原发性三叉神经痛病因中的作用

目的 探讨磁共振断层血管成像(MRTA)及神经内镜在判断原发性三叉神经痛病因中所起的作用. 方法 回顾性分析行微血管减压术治疗的49例原发性三叉神经痛患者的临床资料、影像学资料及手术资料.所有患者术前均行MRTA检查,术中垫入隔片前置入30°神经内镜行多角度观察. 结果 本组患者MRTA阳性率为77.6%(38/49),MRTA检测为阳性者在术中均得到证实,无一例假阳性.4例术中无法判别可疑血管是否为责任血管者应用神经内镜予以了明确.49例患者中术后47例(95.9%)疼痛消失,1例(2.0%)疼痛减轻,总有效率为97.9%. 结论 MRTA及神经内镜技术有助于判断原发性三叉神经痛的病因,提高手术的安全性和有效性.

Abstract：

Objective To explore the role of magnetic resonance tomographic angiography (MRTA) and neuroendoscope in determining the etiology of idiopathic trigeminal neuralgia. Methods Forty-nine patients with idiopathic trigeminal neuralgia, performed microvascular decompression were chosen; their clinical data, imaging data and operative data were retrospectively analyzed. All patients underwent preoperative MRTA; and before placing intraoperative Teflon, 30° neuroendoscope was applied for multi-angle exploration. Results Positive rate reached 77.6% under MRTA. All patients with positive results under MRTA were confirmed, without a false-positive. Neuroendoscope helped to determine whether the suspect vessels were the offending vessels in 4 patients. The total effective rate in 49 patients was 97.9%; pain disappeared in 47 patients (95.9%) and pain relieved in 1 (2.0%).Conclusion MRTA and neuroendoscope can help to determine the etiology of idiopathic trigeminal neuralgia, and improve the safety and effectiveness of MVD.

Magnetic resonance tomographic angiography and neuroendoscope in determining the etiology of idiopathic trigeminal neuralgia

Objective To explore the role of magnetic resonance tomographic angiography (MRTA) and neuroendoscope in determining the etiology of idiopathic trigeminal neuralgia. Methods Forty-nine patients with idiopathic trigeminal neuralgia, performed microvascular decompression were chosen; their clinical data, imaging data and operative data were retrospectively analyzed. All patients underwent preoperative MRTA; and before placing intraoperative Teflon, 30° neuroendoscope was applied for multi-angle exploration. Results Positive rate reached 77.6% under MRTA. All patients with positive results under MRTA were confirmed, without a false-positive. Neuroendoscope helped to determine whether the suspect vessels were the offending vessels in 4 patients. The total effective rate in 49 patients was 97.9%; pain disappeared in 47 patients (95.9%) and pain relieved in 1 (2.0%).Conclusion MRTA and neuroendoscope can help to determine the etiology of idiopathic trigeminal neuralgia, and improve the safety and effectiveness of MVD.