磁共振序列在颅神经血管成像中的应用价值

目的通过3D-SPACE序列、3D-CISS序列、3D-VIBE序列及3D-TOF序列对神经、血管及其空间关系的显示能力,从中选择优异的序列组合来展现神经与血管的关系。材料与方法对三叉神经痛、面肌痉挛或舌咽神经痛的患者进行MR常规及上述4种血管神经成像技术进行扫描,查看它们在MPR或MIP重建中神经、血管的成像特点。结果与3D-CISS序列相比,3D-SPACE序列能更加敏感地显示责任血管,更好地体现神经与血管的关系;与3D-VIBE序列相比,3D-TOF序列能更清晰地显示整体的血管走形。结论 3D-SPACE序列能更好的显示神经走向及判断神经与血管的关系,3D-TOF序列能在MIP重建中显示整体的血管并判断血管来源,两者结合能更好地展现MR在血管神经成像的优势。

The application value of MR sequence in cranial neurovascular imaging

Objective: We compared the display capability of 3D-SPACE, 3D-CISS, 3D-VIBE and 3D-TOF sequence on nerve, vessels and their spatial relationship, and choose optimal sequences to show the relationship between vessels and nerves. Materials and Methods: 3D-SPACE, 3D-CISS, 3D-VIBE , 3D-TOF sequence and conventional MR were used for the MR scan. The MR scan was performed in patients with trigeminal neuralgia, mimetic convulsion or glossopharyngsal neuralgia. 3D MRP and MIP views were reconstructed to show the relationship between nerves and surrounding vessels. Results: Compared with 3D-CISS sequence, 3D-SPACE sequence shows a higher sensitivity in the detection of responsibility blood vessels and the relationship between nerves and blood vessels;Compared with 3D-VIBE sequence, 3D-TOF sequence shows a higher visualization in whole vessels shape. Conclusions:3D-SPACE sequence can show the relationship between nerve and blood vessels, 3D-TOF sequence can display the whole vessel shape and judge the source of blood vessel in MIP reconstruction. The combination of the two sequences can Visually show the advantage of MR in neurovascular imaging.