·FLAIR:常可见轻度高信号,但其特异性不如DWI。 ·T2:常为高信号。 ·T1:相对低信号。 ·T2*/GRE:与周围组织无明显差异(正常或略有变化)。 2. 白质高信号(White matter hyperintensity,WMH) ·大小及定位:大小不定,可弥散分布在深部及旁侧脑室周围白质。 ·病理背景:与慢性小血管缺血性改变、脱髓鞘及胶质增...
T2/FLAIR hyperintensity of the parahippocampal gyrus was associated more with tumor than with LE (71% vs. 18%) (p=0,009), as T2/FLAIR hyperintensity of extralimbic structures (p=0.015), edema (p=0.041), and mass effect (p=0.015). Maintenance of gray/white matter distinction was ...
MRI of the brain stem using fluid attenuated inversion recivery pulse sequences MRI-FLAIR images of the head show corticospinal tract alterations in ALS patients more frequently than T2-, T1-and proton-density-weighted images. J ... BD Coene,JV Hajnal,JM Pennock,... - 《Neuroradiology》 ...
putamina on T2 weighted and FLAIR images. These was low signal on T1 weighted images. Moderate restriction was seen on diffusion weighted images.Medial frontal cortex and occipital cortex showed subtle hyperintensity on FLAIR.Thalami and globus pallidus w...
(indicated by red arrows) was hyperintense in T2 and FLAIR images at 0.055 T and 3 T. Further, infarct was mildly hyperintense at ULF DWI, whereas it was hyperintense at 3 T. ADC showed slight hyperintensity at 0.055 T and hypointensity at 3 T. The corresponding signal changes for DWI ...
部分MCA急性缺血性卒中患者的FLAIR序列可见血管高信号征(FLAIR vascular hyperintensity,FVH),此征的出现可能源于侧支循环形成及代偿血流逆流[18]。另有研究认为,糖尿病是影响急性MCA闭塞患者FVH形成的独立危险因素[19]。部分MMI患者SWI图像上可见到突出血管征(prominent vessel sign,PVS),PVS被定义为灌注减低区域内...
【影像表现】在磁共振T2加权和FLAIR像上可见尾状核与壳核双侧对称性均匀高信号影,T1低信号,弥散中等受限;内侧额叶和枕叶皮质在FLAIR像上表现为稍高信号;病变未累及丘脑和苍白球;脑沟和基底池明显增宽提示脑萎缩;脑桥和脑干未见异常信号影。 There was bilateral and symmetrical uniformly high signal intensity in ...
Brain MRI scans for all participants were acquired on a Philips 3T MRI system. A standardized protocol was used consisting of, amongst others, a FLAIR sequence (TR: 11000 ms, TE: 125 ms, TI: 2800 ms, acquisition matrix: 232 × 148, slice thickness: 3 mm, acquired voxel ...
(FLAIR);Brain;Lowfieldstrength4 英文简称FLAIRIRMRJSEFSETlWIT2WITRTETINSAFOVS1CECTCSFFIDVCSFAV-RspaceSAHIVH符号说明英文全称fluid-attenuatedinversion-recoveryinversionrecoverymagneticresonanceimagingspinechofastspinechoT1weightedimagingT2weightedimagingrepetitiontimeechotimeinversiontimenumbersampleofaveragefieldofviewer...
Images,Movies,Sliders: Brain MRI Inversion Recovery Knee MRI Sagittal STIR 002 Brain MRI Coronal FLAIR 001 •View the DATABASE results for 'Inversion Recovery Sequence' (8). Further Reading: Basics: The equation for a repeated inversion recovery sequence ...