我們收集本院腫瘤科醫師轉介至本科作全脊椎磁振掃描(whole spine MRI)的病人10位,除例行性檢查波序,如矢狀面(sag)T1和T2,軸位面(axial)T2等,另加做快速自旋回波-反轉回復(FSE-IR, STIR)及快速自旋回波T2脂肪飽和,以比較影像上的均質性及靈敏性. 結果顯示十位病人中,八位在快速自旋回波-短時間反轉回復(FSE...
22 Goel VK, Monroe BT, Gilbertson LG, et al. Interlaminar shear stresses and laminae separation in adisc:Finite element analysis of the L3-L4 motion segment subjected to axial compressive loads[J]. Spine, 1995, 20(...
i may just be giving general info but at2*is aquired from a gradient echo compared to a t2 with a spin echo. according to mri in practice at2*can help show some things a normal t2 would not, such as ms plaques in a cervical spine ...
Patient Positioning: Patients were examined in a supine position using an 18-channel body array coil and a 32-channel spine coil. - Axial (3mm) and coronal (3mm) half-Fourier acquisition single-shot turbo spin echo (HASTE) sequences. - Axial (6mm) diffusion-weighted sequence (DWI). - Axi...
采用Siemens Magnetom Verio 3.0T磁共振行腰椎常规MRI斜矢状位（Oblique Saggital，OSag）T1WI，T2WI，TIRM，横断位（Oblique Axial，OAxial）T2WI及OSag T2* mapping扫描，扫描位置均保持一致。受检者取仰卧位，头先进，所有受检者于午后接受 MR 检查（椎间盘弛豫值于清晨、午后、傍晚有变化[4])。其中，OSag ...
Before and after axial load, T2 weighted MR imaging, T1 weighted MR imaging, diffusion tensor imaging, and T2-mapping imaging of the lumbar spine were performed. Load quality was 40%-50% body weight. At 10 minutes after axial load, another diffusion tensor imaging was performed. After 15-...
13、腰椎常规mri斜矢状位(oblique saggital, osag) t1wi, t2wi, tirm,横断位(oblique axial, oaxial) t2wi 及 osagt2* mapping扫描,扫描位置均保持一致。受检者取仰卧位,头先进,所冇 受检者于午后接受mr检查(椎间盘弛豫值于清晨、午后、傍晚奋变化4)。其中,osagt2wi 序列参数如下:te:114ms, tr: 3500ms...
Cervical spinal cord imaging used a 6-channel spine coil, with all imaging FOV centred at the C2/C3 level of the cervical spinal cord and angulation aligned with the cord. An axial 2D multi-slice T2*-weighted multi-echo gradient echo image (T2*w) was acquired with TR = 815 ms, ...
suppression (T2FFE-SPIR), via a 3T Philips Intera (Philips Medical Systems, Best, The Netherlands) scanner, and added to the routine, noncontrast lumbar MRI examinations, which included sagittal FSE T1-weighted (T1WI), T2-weighted (T2WI), short-tau inversion recovery (STIR), and axial FSE ...
文题释义: T2* mapping成像技术:在MRI技术的基础上,对机体组织进行T2* mapping扫描成像并测定组织T2*值的一项新成像技术.根据不同病变组 织T2*值的差异定量评估组织病变,尤其在关节软骨评价方面具有显著优势. 腰椎小关节炎:腰椎小关节是整个脊柱中唯一的滑膜关节,它与同节段前方的椎间盘构成一个功能单位——三...