摘要
目的：通过3D-CISS序列与3D-TSE序列对Ⅶ-Ⅸ对颅神经成像质量的比较，确定3D-CISS序列对脑脊液包绕的Ⅶ-Ⅸ对颅神经和淋巴液充盈的内耳迷路成像显示的优势。方法：应用3D-CISS序列与3D-TSE序列分别对第Ⅶ-Ⅸ对颅神经及内耳迷路进行MR成像，在MPR图像及MIP重建图像上最大程度的显示颅神经及内耳迷路，并对两种序列的成像质量进行统计比较。结果：面神经的脑池段、内听道近段及远段、前庭蜗神经的脑池段及内听道近段、耳蜗、前庭及半规管在两个序列中全部以100％的几率显示；蜗神经、前庭上神经、前庭下神经及舌咽神经在3D-CISS序列、3D-TSE序列的显示几率依次分别为：100％、81．2％；100％、51．4％；100％、42．0％；100％、57．1％；面神经、前庭蜗神经的内听道段、内耳迷路、舌咽神经的3D-CISS序列成像质量明显优于3D-TSE序列成像；面神经、前庭蜗神经的脑池段3D-CISS序列成像质量略优于3D-TSE序列。结论：对于被脑脊液包绕的颅神经和淋巴液充盈的内耳迷路的成像，3D-CISS序列是最佳的选择。
Objective： The aim of this study was to evaluate the efficacy of 3D-CISS on image quality of nerves surrounded by CSF and fluid-flned labyrinth when compared with that of 3D-TSE.Methods： The cranial nerves （ Ⅶ～Ⅸ ）as well as inner ear structures were examined using 3D-CISS and 3D-TSE sequences respectively, and displayed to the full at the reformatted and maximum intensity projection （MIP） images. The nerve identification and image quality were graded for cranial nerves （Ⅶ～Ⅸ）as well as inner ear structures. Statisileal analysis was performed using the Wilcoxin test, P 〈 0.05 was considered significant.Results： The cistemal and canallcular segments of facial nerves, cistemal and interior canalicular segments of vestibulocochlcar nerves, along with cochlea, vestibule and semicircular canals were identified with 100% by both sequences. The identification rates for cochlear nerves, superior vestibular nerves, inferior vestibular nerves, glessopharyngeal nerves were as follows： 100% in 3D-CLSS and 81.2% in 3D-TSE, 100% in 3D-CISS and 51.4% in 3D-TSE, 100% in 3D-CISS and 42.0% in 3D-TSE, 100% in 3D-CISS and 57.1% in 3D-TSE. 3D-CISS images were signitlcanfly better for canalicuhr segments of facial and vesfibulocochlear nerves, inner ear labyrinth and glessopharyngeal nerves, and slightly better for cisternal segments of facial and vesfibulocochlcar nerves. Conclusion： 3D-CISS sequence is preferable when imaging cranial nerves surround- ed by CSF or fluid-filled structures.
出处
《医学影像学杂志》
2007年第9期891-894,共4页
Journal of Medical Imaging
