T1加权像（T1-weightedimage）是通过调整脉冲序列的参数，使组织在图像上呈现不同的灰度。在胰腺MRI中，...
MRIADPKDPolycystic kidney diseaseTotal kidney volumePURPOSE: In ADPKD patients total kidney volume (TKV) measurement using MRI is performed to predict rate of disease progression. Historically T1 weighted images (T1) were used, but the methodology of T2 weighted imaging (T2) has evolved. We ...
一、T1、T2是什么意思？MRI是磁共振成像，原理是施加一个磁场，让原子核和着磁场的节拍动起来（共振）...
High-resolution T1-weighted images were acquired using spoiled gradient recalled sequence on a 3 T MRI system (Tim Trio; Siemens,Erlangen, Germany) with an eight-channel head coil at West China Hospital. The main ...
MRI图像若主要反映的是组织间T1值差别,为T1加权像(T1weighted image,T1WI)。 MRI图像具有多个成像参数与CT检查的单一密度参数成像不同,MRI检查有多个成像参数的特点,即有反映T1弛豫时间的T1值、反映T2弛豫时间的T2值和反映质子密度的弛豫时间值等。MRI图像若主要反映的是组织间T1值差别,为T1加权像(T1weighted image...
To assess contrast-enhanced (C+), fat-saturated (FatSat), T1-weighted (T1W) imaging in the characterization of the soft tissue mass associated with primary bone tumors, we compared it with T2-weighted (T2W) imaging in patients with osteosarcoma ( n = 36) and Ewing sarcoma family of tumo...
采集了 70例AD患者,112例MCI患者(包含在随访中转化为AD的,MCI-C:MCI Converters与未转化为AD的,MCI-NC:MCI Non-converters 各 56 例),以及 70 例正常人(NC)的 T1-Weighted MRI 三维(3D)脑图像.首先提取每个脑图像的灰质来构造每个脑图像的三阶灰质张量,张量大小为95×119×102.采用张量主成分分析法(TPCA...
百度试题 结果1 题目T1WI:MRI的图像如主要反映组织间T1的差别,为T1加权像,即T1 weighted image,T1WI。相关知识点: 试题来源: 解析 普通CT图像的空间分辨率不如X线图像高,但具有更高的密度分辨力。反馈 收藏
MRI T1T2T2star区别 MRIPhysics2:ContrastsandProtocols ChrisRorden,PaulMorganTypesofcontrast:Protocols ––––Static:T1,T2,PDEndogenous:T2*BOLD(‘fMRI’),DWExogenous:GadoliniumPerfusionMotion:ASL www.fmrib.ox.ac.uk/~karla/www.hull.ac.uk/mri/lectures/gpl_page.htmlwww.cis.rit.edu/htbooks/...
t2加权反映氢原子核的密度，基本是水，因为病变常有炎性水肿，故说反映病变。密度vs.水肿。实际上很多...