摘要
目的探讨磁共振三维快速自旋回波短时反转恢复(3D-SPACE-STIR)序列显示外周三叉神经的应用价值。方法前瞻性搜集11名志愿者,采用常规头颅线圈,行3D-SPACE-STIR序列平扫及增强扫描。对两组图像质量进行主观评分,并测量三叉神经三大分支(V1、V2、V3)主干的信号强度、翼外肌信号强度,计算神经肌肉信号比(SIR)及对比度(CR)。结果3D-SPACE-STIR增强序列的图像质量主观评分高于平扫序列,观察者间一致性极好,Kappa值分别为0.915、0.839。V1、V2、V3主干3D-SPACE-STIR增强序列的SIR及CR均高于平扫序列(P<0.05)。结论3D-SPACE-STIR增强序列的图像背景抑制效果优于平扫序列,3D-SPACE-STIR增强序列可清晰显示外周三叉神经。
Objective To explore the application value of Magnetic Resonance(MR)three-dimensional(3 D)sampling perfection with application-optimized contrasts using different flip-angle evolutions(SPACE)and the short time inversion recovery(STIR)sequences in displaying the peripheral trigeminal nerve.Methods 11 volunteers were prospectively enrolled,non-enhanced and enhanced 3 D-SPACE-STIR MR sequence were performed using head coil.Imaging scores of non-enhanced and enhanced 3 D-SPACE-STIR MR were evaluated.Moreover,signal intensity of the V1,V2,V3 trunk and lateral pterygoid muscle were measured to calculate the signal intensity ratio(SIR)and contrast ratio(CR).Results The subjective score of image quality of enhanced 3 D-SPACE-STIR MR sequence was higher than that of non-enhanced sequence,which had excellent consistency among observers,and the Kappa coefficients were 0.915,0.839,respectively.The SIR and CR of enhanced 3 D-SPACE-STIR MR sequence of V1,V2 and V3 trunks were higher than those of non-enhanced MR imaging.Conclusion The image background suppression of enhanced 3 D-SPACE-STIR MR sequence was superior to that of non-enhanced 3 D-SPACE-STIR MR sequence;Enhanced 3 D-SPACE-STIR MR sequence can clearly show the peripheral trigeminal nerve.
作者
陈翠芳
韩海伟
宋玉坤
黄旭
CHEN Cuifang;HAN Haiwei;SONG Yukun(The First Affiliated Hospital of Xiamen University,Xiamen 361003,P.R.China)
出处
《临床放射学杂志》
CSCD
北大核心
2020年第8期1498-1501,共4页
Journal of Clinical Radiology
关键词
三维快速自旋回波短时反转恢复序列
三叉神经
背景抑制
Three-dimensional Sampling Perfection With Application-optimized Contrasts Using Different Flip-angle Evolution and the short time inversion recovery sequences
Trigeminal Nerve
Background Suppression
