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- Functional magnetic resonance imaging (fMRI) have been widely used to lbrain check,especially diffusion weighted imaging(DWI)and diffusion perfusion weighted imaging(PWI). 功能磁共振成像已比较广泛地用于颅脑检查,尤以磁共振弥散加权像(DWI)和灌注加权像(PWI)应用较多。
- Application of functional magnetic resonance diffusion weighted imaging(DWI) and perfusion weighted imaging(PWI) MRI can diagnose early acute cerebral infarction. 功能MR弥散加权成像(DWI)和血流灌注成像(PWI)磁共振技术的应用可诊断早期脑梗死,结合DWI和PWI可以确定缺血半暗带和血流灌注情况;
- Diffusion perfusion weighted imaging (PWI) can provide more useful information in superacute stage,of which the changes in perfusion imaging is earlier than that of DW1. PWI能在超急性阶段提供非常有用的信息,在超早期脑缺血性卒中灌注图像改变要先于DWI图像改变。
- Keywords central neurocytoma;MRI;perfusion weighted imaging; 中枢神经细胞瘤;磁共振成像;灌注成像;
- perfusion weighted image 灌注成像
- Correlative Study of MR Perfusion Weighted Imaging with Histopathologic Grade in Gliomas 脑胶质瘤磁共振灌注成像与病理对照研究
- The Clinical and Experimental Study of MR Perfusion Weighted Imaging in Cerebral Gliomas 磁共振灌注成像在脑胶质瘤的临床应用及动物实验研究
- Keywords SPIO;MRI;Hyperacute cerebral infarction;Diffusion weighted imaging;Perfusion weighted imaging; 关键词SPIO;磁共振成像;超急性脑梗死;弥散加权成像;灌注加权成像;
- An experimental study of ischemic penumbra of early cerebral infarction in rabbits by using diffusion and perfusion weighted imaging 早期脑梗死缺血半暗带磁共振扩散和灌注加权成像的实验研究
- Keywords Magnetic resonance imaging,Perfusion weighted imaging,Glioma,Grading,Relative cerebral blood volume,Vascular endothelial growth factor,Microvessel density,Angiogenesis; 磁共振成像;灌注成像;胶质瘤;分级;相对性脑血流容积;血管内皮生长因子;微血管密度;血管生成;
- Perfusion weighted imaging 灌注加权成像
- Comparing the characteristics of X-ray, emission computerized tomography and perfusion weighted MR found the advantages of perfusion weighted MR. 3 对比磁共振灌注成像、X-线、放射性核素骨显像监测组织工程骨血管化的特点，探讨磁共振灌注成像方法的优缺点；
- The Studies were performed with SE T_1 weighted image(T_1WI) ahd RARE T_2 weighted image (T_2WI)sequence. SE序列为T_1加权成像(T_1wI); RARE序列为T2加权成像(T_2wI)。
- The solid part of trigeminal neurinoma presented "peper salt" appearance in T2 weighted image and an obvious enhancement after enhanced scanning. 肿瘤实性部分在T2加权像呈“椒盐”样改变，增强扫描其实性部分明显强化。
- On T2 weighted image, white matter showed hyperintense, the myelinated region and the cortex presented hypointense. Good signal contrast was seen between the white matter and cerebral cortes in all neonates. T_2加权成像,脑白质为较高信号,灰质和髓鞘化区域呈明显的低信号,全组新生儿的灰白质对比均清晰明显;
- The time of T1 and T2 of the disease part of 9 cases are all obviouslengthenner. The MRI signal appeared as lower, isointense and homogeneous slightly hypointense on T1weighted image(T1WI) and high signal intensity on T2 weighted image (T2WI). 9例病变部位T1、T2值均明显延长，T1加权像上呈低、稍低或中等信号强度，T2加权像上病变区是高信号。
- The following tables are a general guide to how tissue appears on T1- or T2- weighted images. 以下是一个各种组织分别在T1及T2加权像上如何显现的简要介绍。
- T-1 and T-2 weighted imaging(WI) were performed on both ax ialand sagital planes. MRI检查采用GE 0.;5T超导成像系统，行横断面和矢状面T1、T2加权成像。
- The following is a general guide to how tissue appears on T1- or T2- weighted images. 以下是一个各种组织分别在T1及T2加权像上如何显现的简要介绍。
- T 2-and proton density weighted images often showed high-signaling of pontine transversal fibers(19/28) and middle cerebellar peduncles (12/28). 在T2 和质子密度加权像上常可见桥横纤维 (19/ 2 8)和小脑中脚 (12 / 2 8)高信号。
