Department of Radiology and Center for Imaging Science, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea.
Eur Radiol. 2011 Dec;21(12):2633-9. doi: 10.1007/s00330-011-2216-1. Epub 2011 Aug 6.
To evaluate the neurovascular compression (NVC) in patients with trigeminal neuralgia (TN) using T2 VISTA and FLAIR VISTA fusion imaging.
Sixty-six consecutive patients with TN who underwent MR imaging at 3-T between April 2008 and December 2010 were retrospectively reviewed. Multiplanar reconstructions (MPR) of T2 VISTA and FLAIR VISTA fusion imaging were used for image interpretation. The frequency of vascular contact, the segment of compression and the type of vessel were compared between the ipsilateral symptomatic side and the contralateral asymptomatic side.
The frequency of vascular contact on the ipsilateral side and the contralateral side were 95.5% (63/66) and 74.2% (49/66), respectively. The frequency of indentation on the ipsilateral side and contralateral side were 74.2% (49/66) and 21.2% (14/66), and showed a statistically significant difference (p < 0.05). The sensitivity, specificity and odds ratio were 77.8%, 71.4% and 10.7, respectively. There were no significant differences in the involved segment or type of vessel between the ipsilateral side and contralateral side.
MPR of T2 VISTA and FLAIR VISTA fusion imaging is useful in the detection of NVC in patients with TN. Vascular indentation can predict the presence of symptoms in patients with TN. Key Points •Fusion MRI with multiplanar reconstruction can detect neurovascular compression in patients with trigeminal neuralgia •Vascular indentation can predict the presence of symptoms in patients with trigeminal neuralgia •In patients with trigeminal neuralgia, neurovascular indentation is commoner on the symptomatic side.
使用 T2 VISTA 和 FLAIR VISTA 融合成像评估三叉神经痛（TN）患者的神经血管压迫（NVC）。
回顾性分析 2008 年 4 月至 2010 年 12 月期间在 3-T 进行 MRI 检查的 66 例连续 TN 患者。使用 T2 VISTA 和 FLAIR VISTA 融合成像的多平面重建（MPR）进行图像解释。比较同侧症状侧和对侧无症状侧血管接触的频率、受压节段和血管类型。
同侧和对侧血管接触的频率分别为 95.5%（63/66）和 74.2%（49/66）。同侧和对侧压迫的频率分别为 74.2%（63/66）和 21.2%（49/66），差异有统计学意义（p<0.05）。敏感性、特异性和优势比分别为 77.8%、71.4%和 10.7。同侧和对侧受累节段或血管类型无显著差异。
T2 VISTA 和 FLAIR VISTA 融合成像的 MPR 有助于检测 TN 患者的 NVC。血管压迫可预测 TN 患者症状的存在。关键点：•融合 MRI 多平面重建可检测三叉神经痛患者的神经血管压迫•血管压迫可预测三叉神经痛患者症状的存在•三叉神经痛患者症状侧神经血管压迫更常见。
