(MRI).Methods Sixty eight normal subjects with high resolution MRI were recruited in our study.The ocular motor nerves at the brainstem were performed using 3-dimensional,T2-weighted Turbo-Spin-Echo sequence with high sampling efficiency sequence (3D T2-SPACE),Parameters:TR =1000 ms,TE =134 ms...
目的对比MRI相位导航技术下二维T2加权快速自旋回波(two dimensional T2 weighted imaging turbo spin echo, 2D T2-TSE)序列与三维T2加权可变翻转角快速自旋回波(three dimensional T2 weighted imaging sampling perfection with application optimized contrast using different flip angle evolution, 3D T2-SPACE)序列在疑似...
结论T:一sPAcE序列可以作为1.5TMR面肌痉挛病人的首选检查。 【关键词】T2一sPAcE;T2—3D—TsE;血管压迫性面肌痉挛 VaIueof MRIinhemifacialcausedvascuIar DiagnosticT2一SPACE spasm by compression删耽f,上,舶日肝√招,^纠m口D— 37l 453000,Ch讯a bei,CHEN碍,ei—linng.Depnrtment可Rddiology,ThestHospit...
MRI相位导航技术下2D T2-TSE与3D T2-SPACE序列在疑似隐匿性脊髓栓系综合征俯卧位扫描中的应用价值对比 认领 Comparison of the application value of 2D T2-TSE and 3D T2-SPACE sequences using MRI phase scout technology in prone position scanning of suspected occult tethered cord syndrome ...
在这项前瞻性单机构研究中,参与者接受 3T 或 1.5T 的乳腺磁共振成像(MRI)检查,该检查包含标准的 T2 加权 / 水敏感短反转时间反转恢复(STIR)序列以及一种实验性的扩散加权成像(DWI)序列(由读出分段回波平面成像(rs-EPI)和同时多层成像(SMS)构成)。72 名患者(平均年龄 48.3±12.5 岁;均为女性)共接受 605 次...
DWI with b0 demonstrates significant hyperintensity of CSF filled in CSF space;globus pallidum,substantia nigra,red nucleus with hypointensity for normal iron deposion;subtle lower signal intensity of gray matter than white matter with ill-defined difference;isointensity of corticospinal tracts. ...
T2mapping at 7 T MRI without requiring any additional hardware—such as dielectric pads or multi-channel transmit coil—to reduce the RF field inhomogeneity. Another advantage of this method is that it enables whole-brain imaging with high acceleration factors, as it relies on a 3D k-space ...
1.StaticContrast:Sensitivetorelaxationpropertiesofthespins(T1,T2)2.EndogenousContrast:Contrastthatdependsonintrinsicpropertyoftissue(e.g.fMRIBOLD)3.Exogenouscontrast:Contrastthatrequiresaforeignsubstance(e.g.Gadolinium)4.Motioncontrast:Sensitivetomovementofspinsthroughspace(e.g.perfusion).3 AnatomyofanMRIscan ...
常规MRI所见脑膜瘤表现为以硬脑膜为基底生长的脑外肿瘤,平扫T1WI序列表现为等或略低信号, 瘤周水肿比肿瘤实质信号更低;平扫T2 FLAIR序列表现为等或稍高信号,瘤内囊性成分和瘤周水肿为高信号。增强扫描后,89例中所有脑膜瘤都显示强化,T1...
MRI including the DW-T2 map was performed to evaluate the primary tumor lesion. The sequence design and imaging parameters of the DW-T2 mapping were as follows: spin-echo echo planar imaging (EPI) with fat suppression...