Cerebral MR angiography with multiple overlapping thin slab acquisition. Part II. Early clinical experience.
Cerebral MR angiography with multiple overlapping thin slab acquisition. Part II. Early clinical experience.
复制标题
具有多个重叠薄板采集的脑 MR 血管造影。
作者：
D. Blatter;D. Parker;S. S. Ahn;A. Bahr;R. Robison;R. Schwartz;F. Jolesz;R. Boyer
在一项纳入164例患者的前瞻性多中心研究中，评价了采用多次重叠薄层采集的脑磁共振（MR）血管造影的图像质量和诊断准确性。在164例患者中，87例（53%）接受了相关的切割电影血管造影或手术。在90%的患者研究中，整体图像质量极佳。19个动脉瘤中18个被MR血管造影发现。载瘤动脉、瘤颈和瘤顶的解剖结构以及大小在19个动脉瘤中的17个中被正确显示。19例血管畸形均行MR血管造影检查。静脉畸形和单蒂动静脉畸形可以通过磁共振血管造影完全定义，而复杂动静脉畸形的完全定义通常很困难。在脑肿瘤中，所有病例均准确显示了手术计划中重要的动脉和静脉。在缺血性脑血管病，磁共振血管造影描绘了所有狭窄和闭塞的一级和二级脑动脉。除了大的中央动脉外，无法显示管腔内充盈缺损，限制了MR血管造影对栓塞性卒中的特异性诊断。
In a prospective, multicenter study of 164 patients, cerebral magnetic resonance (MR) angiography with multiple overlapping thin slab acquisition was evaluated for image quality and diagnostic accuracy. Of the 164 patients, 87 (53%) underwent either correlative cut-film angiography or surgery. The overall image quality was excellent in 90% of patient studies. Eighteen of 19 aneurysms were detected with MR angiography. The parent artery, the anatomy of the neck and dome, and the size were correctly shown in 17 of the 19 aneurysms. All 19 vascular malformations were seen with MR angiography. Venous malformations and single pedicle arteriovenous malformations were completely defined with MR angiography, while complete definition of complex arteriovenous malformations was frequently difficult. In cerebral tumors, the arteries and veins important in surgical planning were accurately shown in all cases. In ischemic cerebrovascular disease, MR angiography depicted all stenoses and occlusions of first- and second-order cerebral arteries. The inability to depict intraluminal filling defects in any but the large central arteries limited the ability of MR angiography to enable the specific diagnosis of embolic stroke.