纳入标准如下:(1)MTLE 患者;(2)正常 MRI 或海马硬化(HS)的MRI证据与 EEG 确定的单侧化同侧;(3)没有可能导致癫痫发作的双侧 HS 或继发性海马外病变的证据;以及(4)进行了 T1 加权和 T2 加权的 MRI 扫描。排除标准包括:...
In this work, we propose a fusion algorithm using CDF9/7 wavelet based on lifting scheme with specified fusion rules to combine pairs of multispectral Magnetic Resonance Imaging (MRI) such as T1, T2. The experimental results of brain tumor show that the proposed algorithm preserves both edge ...
On T1- and T2-weighted magnetic resonance (MR) images obtained at 0.14 T the rat brain was visible in the rat head as an area of relative high signal intensity. The enlarged lateral ventricles produced by intrastriatal injections of the excitotoxin kainic acid (KA) were clearly visible as ...
Optimized T1- and T2-weighted volumetric brain imaging as a diagnostic tool in very preterm neonatesOptimized T1- and T2-weighted volumetric brain imaging as a diagnostic tool in very preterm neonatesMRIPreterm brainNeonatesT1- and T2-weighted imagingRelaxation...
关键词: 脑胶质瘤;肿瘤分级;Ki-67标记指数;磁共振成像;T1、T2值 ABSTRACT ObjectiveTo investigate the diagnostic value of T1, T2 and enhanced T1 value in predicting glioma grading and cell proliferation activity. Materials and MethodsThirty-six patients with glioma confirmed by surgery and pathology wer...
This work presents the application of a quantitative magnetic resonance imaging (MRI) technique in stereotactic deep-brain neurosurgery planning procedures. The high spatial resolution T1 and T2 maps acquired using this imaging method have been normalized to the standard CJH-27 brain coordinate system ...
ResultsSignificant differences were displayed when comparing T1, T2, and PD values among 3 groups in the most of brain regions ( P<0.05). T1 and PD values have lower discrepancy with the highest intergroup coefficient of variations (CVs) of 3.33% and 5.80%, while T2 values has a higher di...
原文:《Brain and Spine Imaging Patterns》 翻译:张隐笛 李善杰 基底节区T1高信号 肝性脑病 肝性脑病患者,苍白球、豆状核及中脑可见T1WI高信号。可能与肝代谢锰障碍导致锰沉积有关。 横断位T1WI示双侧基底节区,尤其是双侧苍白球可见高信号;冠状位T1WI+C示双侧基底节...
核磁共振t1与t2区别(NuclearmagneticresonanceT1andT2 difference) Nuclearmagneticresonance(T1)isdifferentfromT2(some basicMRIknowledge,that'sright!Source:logofPhoebetree Source:Lisetsail 1,T1observationanatomicalstructureisbetter. 2andT2showedthatthelesionswerebetter. ...
胶质瘤的MRI-T1和T2加权弛豫时间较长以及在对比增强(contrast-enhanced,CE)图像中观察到与肿瘤分级相关的高信号;通过创建从T1加权增强图像中减去T1加权非增强图像得出的减影图(ΔT1图),从T2加权图像中减去T1加权非增强图像(ΔT2图),可提供改善胶质瘤的表现和分级的可能性(图1)。