磁共振3D-SPACE序列与3D-CISS序列对Ⅴ～Ⅷ颅神经成像的对照性研究  

Magnegtic Resonance Imaging of Cranial Nerve Ⅴ-Ⅷ:Comparison of 3D-CISS and 3D-SPACE Sequences

作　　者：杜春华[1] 吴飞云[1] 祝因苏[1] 张伟[1] 刘波[1] 杨正强[1] 

机构地区：[1]南京医科大学第一附属医院放射科,210029

出　　处：《临床放射学杂志》2012年第12期1699-1702,共4页Journal of Clinical Radiology

摘　　要：目的通过MR可变翻转角的三维快速自旋回波(3D sampling perfection with application optimized contrasts using different flip angle evolutions,3D-SPACE)序列与三维稳态进动结构相干(3D constructive interference insteady state,3D-CISS)序列对Ⅴ～Ⅷ颅神经成像质量进行比较,优化颅神经MRI序列。方法对40例受检者用3D-SPACE序列与3D-CISS序列对Ⅴ～Ⅷ颅神经行MRI,同时行多平面重组(MPR),并对两种序列的图像显示情况进行比较。结果 3D-SPACE序列和3D-CISS序列均能显示三叉神经脑池段、外展神经脑池段、面神经脑池段、内听道段、前庭神经以及蜗神经脑池段;对Ⅴ～Ⅷ颅神经细微结构的显示,除三叉神经脑池段两种序列差异无统计学意义外,其余颅神经3D-SPACE序列均优于3D-CISS序列,差异有统计学意义(P<0.05);3D-SPACE序列扫描时间比3D-CISS序列扫描时间短。结论 3D-SPACE序列对Ⅴ～Ⅷ颅神经成像质量优于3D-CISS,且扫描时间更短,因此3D-SPACE序列是目前显示Ⅴ～Ⅷ颅神经的较好方法。Objective We compared the imaging quality of 3D sampling perfection with application optimized contrasts using different flip angle evolutions （SPACE） and 3D constructive interference in steady state （CISS） ,to optimize the V～Ⅷ cranial nerve magnetic resonance （MR） imaging. Methods Forty persons performed continuous0. 5mm thick MRI of cranial nerve V ～ Ⅷ with 3 D SPACE , 3D CISS, and MPR reconstruction. The imaging quality of 3D SPACE and 3D CISS were compared. Results There was no statistically significant difference between the 3D SPACE and 3D CISS sequences in identification of the cisternal segment of trigeminal nerve, abducens nerve, the cisternal segment and canalicular segment of facial nerve, vestibular and cochlear nerve. Except trigeminal nerve, 3D SPACE has significantly higher quality than 3D- CISS in display details of other cranial nerves. Conclusion Continuous thin-slice MR images using 3D-SPACE and 3D- CISS sequences are sufficient to evaluate the details of the Cranial nerve V ～ Ⅷ, but 3D SPACE has higher quality and shorter scan time than 3D-CISS in depiction of Cranial nerve V ～Ⅷ.

关 键 词：颅神经磁共振成像3D-SPACE序列 三维稳态进动结构相干序列 

分 类 号：R445.2[医药卫生—影像医学与核医学]