摘要
目的对比分析常规脑部磁共振成像(MRI)与三维可变反转角快速自旋回波(3D-SPACE)序列用于听神经瘤周围神经术前评估。方法收集2019年6月至2021年7月该院收治的经手术病理确诊的104例听神经瘤患者的临床资料,术前均行MRI常规扫描及3D-SPACE序列扫描。观察常规MRI及3D-SPACE序列对听神经瘤周围神经的显示情况。结果MRI下病灶呈“哑铃状”、椭圆形、类圆形或分叶状,最大截面积为7.8~19.9 cm^(2),平均截面为4.1 cm×4.1 cm;104例患者中实质型病灶33例(31.73%),3D-SPACE序列下病灶实性成分呈均匀等高或稍高信号,实质伴囊变型病灶69例(66.35%),囊变区信号较实质部分更高,囊型病灶2例(1.92%)呈高信号,3D-SPACE序列分型与术中所见总符合率为83.65%(87/104);3D-SPACE序列图像对同侧脑神经的显示率明显优于常规MRI(P<0.001);3D-SPACE序列显示听神经瘤患者患侧面脑干受压、小脑半球受压、幕上脑积水分别为89例(85.58%)、82例(78.85%)、36例(34.62%),该检查结果与常规MRI及术中所见一致。结论3D-SPACE序列对听神经瘤周围神经的显示明显优于常规MRI,其可对听神经瘤术前相邻脑神经进行较为全面的评估。
Objective To comparatively analyze the preoperative evaluation between the routine brain magnetic resonance imaging(MRI)and 3D variable reverse rotation fast spin echo(3D-SPACE)sequences for acoustic neuroma peripheral nerves.Methods The clinical data of 104 patients with acoustic neuroma diagnosed by surgery and pathology in this hospital from June 2019 to July 2021 were collected.The MRI routing scanning and 3D-SPACE sequence scanning were performed before operation.The display situation of peripheral nerves in acoustic neuroma by conventional MRI and 3D-SPACE sequence were observed.Results MRI showed that the lesions were dumbbell-shaped,oval,quasi round or lobulated,with a maximum cross-sectional area of 7.8-19.9 cm^(2) and an average cross-section of 4.1 cm×4.1 cm;among the 104 patients,33 cases(31.73%)were solid lesions,the solid components of the lesions in 3D-space sequence showed uniform or slightly high signal,69 cases(66.35%)were parenchymal with cystic lesions,and the signal in the cystic area was higher than that in the parenchyma area.The cystic lesions was in 2 cases(1.92%)and showed the high signal,the total coincidence rate of 3D-SPACE sequence typing and intraoperative finding was 83.65%(87/104);the display rate of 3D-SPACE sequence images for ipsilateral cerebral nerve was significantly better than that of conventional MRI(P<0.001);3D-SPACE sequence showed that there were 89 cases(85.58%)of lateral brainstem compression,82 cases(78.85%)of cerebellar hemisphere compression and 36 cases(34.62%)of supratentorial hydrocephalus in the patients with acoustic neuroma,respectively.The results were consistent with those seen in routine MRI and operation.Conclusion The 3D-SPACE sequence is significantly better than the conventional MRI in displaying the peripheral nerves of acoustic neuroma,which can comprehensively evaluate the adjacent brain nerves before acoustic neuroma surgery.
作者
赵玮
张治华
ZHAO Wei;ZHANG Zhihua(Department of Medical Imaging,Affiliated Xinhua Hospital,School of Medicine,Shanghai Jiaotong University,Shanghai 200092,China)
出处
《重庆医学》
CAS
2022年第15期2521-2524,2531,共5页
Chongqing medicine
基金
国家自然科学基金项目(81870712)。
关键词
听神经瘤
磁共振成像
快速自旋回波序列
脑神经
术前诊断
acoustic neuroma
magnetic resonance imaging
fast spin echo sequence
cerebral nerve
preoperative diagnosis
