Type 1 Perimedullary Arteriovenous Fistula with Subarachnoid Hemorrhage: Utility of Contrast-enhanced 3D Gradient-echo Technique
Type 1 Perimedullary Arteriovenous Fistula with Subarachnoid Hemorrhage: Utility of Contrast-enhanced 3D Gradient-echo Technique
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DOI：
10.2463/mrms.10.143
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发表时间：
2011-01-01
影响因子：
3
通讯作者：
Yamashita, Yasuyuki
中科院分区：
文献类型：
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作者：
Akter, Masuma;Hirai, Toshinori;Yamashita, Yasuyuki
目的：对于髓周动静脉瘘（AVF）合并蛛网膜下腔出血（SAH）的患者，了解病变位置对于选择合适的导管脊柱血管造影方法是必要的。我们评估了采用稳态进动 (FISP) 序列的 3 维 (3D) 快速成像在检测 1 型髓周 AVF 伴 SAH 中的实用性。材料和方法：我们评估了 4 名患有 SAH 的 1 型髓周 AVF 患者（2 名男性，2 名女性，年龄 53 至 68 岁，平均年龄 59.25 岁），他们患有 SAH，并接受了传统的自旋回波 MR 和对比增强检查3D FISP 成像。两名神经放射学家评估了血管病变的检测以及它们与邻近血管关系的描绘。以导管造影为参考标准，与MR检查结果进行比较。结果：2例患者髓周AVF位于颈髓交界处，1例为颈椎，1例为胸椎。对于所有患者，除了传统 MR 成像之外，使用对比增强 3D FISP 可以改善病灶检测以及病灶与周围血管之间关系的描绘。结论：对比增强 3D FISP 成像对于检测和描绘伴有 SAH 的 1 型髓周 AVF 非常有用。
Purpose: In patients with perimedullary arteriovenous fistula (AVF) with subarachnoid hemorrhage (SAH), knowledge of lesion location is necessary to select the appropriate approach for catheter spinal angiography. We evaluated the utility of 3-dimensional (3D) fast imaging with steady-state precession (FISP) sequence for detecting type 1 perimedullary AVF with SAH.Materials and Methods: We evaluated 4 patients (2 men, 2 women, aged 53 to 68 years, mean age, 59.25 years) with type 1 perimedullary AVF who presented with SAH and underwent conventional spin-echo MR and contrast-enhanced 3D FISP imaging. Two neuroradiologists assessed detection of vascular lesions and delineation of their relationships to the adjacent vessels. Catheter angiography was used as the reference standard and compared with the MR findings.Results: Perimedullary AVF was located at the medullocervical junction in 2 patients, cervical spine in one, and thoracic spine in one. For all patients, use of contrast-enhanced 3D FISP in addition to conventional MR imaging improved lesion detection and delineation of the relationship between the lesion and surrounding vessels.Conclusion: Contrast-enhanced 3D FISP imaging was useful for detecting and delineating type 1 perimedullary AVF with SAH.