EXAM:MRI BRAIN without and with contrast 40/5000 源语言: 英语 目标语言: 简体中文 结果(简体中文) 1: [复制] 考试:没有和有对比的MRI脑 结果(简体中文) 2:[复制] 考试:无和对比的MRI大脑 结果(简体中文) 3:[复制] 无脑磁共振造影其它语言...
Magnetic resonance imaging (MRI) as a clinical investigation became available in the early 1980s. Since then this method has proven to be a valuable additional diagnostic tool in the recognition and delineation of space-occupying lesions of the brain (1, 2, 3, 5). In the present study the...
A second set of ULM temporal maps Ms(Nx,Nz,Nst) was then created by accumulating data from equivalent time points with regards to the stimulation pattern. This produced matrices with a third dimension equal to:\(N_t^s = \frac{{{\mathrm{Pattern}}_{\mathrm{t}}}{{{\mathrm{Step}}_t}...
c, Our multifaceted data analysis pipeline uses various data-driven methods for multimodal image registration to align MSI with 3D anatomical MRI for volumetric reconstruction, identifying differential lipid distributions, tissue typing using MS data and integrating MSI and SCMS data for joint analysis ...
In contrast to volumetric imaging and functional MRI, phantoms for other measurements are less well developed. One research group has developed a phantom for iron deposits that mimic mineral deposits and microbleeds, not currently available for purchase [114]; otherwise, we are not aware of any ...
encountering an ambiguous word, the left hemisphere quickly restricts activation to the dominant meaning or the meaning most consistent with the context that has come before. This is typically very useful in quickly deciphering the intended meaning. In contrast, when encountering the same word, the ...
MRI has also been shown to produce valuable postmortem data and it is feasible to image the neonatal brain both in and outside of the body after death. In order to establish the normal variation in a preterm population we have attempted to image every infant born at less than 30 weeks’ ...
For the first time, we performed a DSC-MRI perfusion analysis using a breath-hold task, without exogenous contrast or additional medical device equipment. We have found the following: The AIF during a breath-hold task is uniquely characterized by a negative signal change, likely representing vasod...
without the problem recurring. The second gradient coil underwent no changes in wiring pattern; consequently there were no changes in force, torque balance or PNS thresholds. Noting that almost all MRI gradient coils have specific forbidden frequency bands, the Impulse gradient coil was designed to ...
The body temperature of the deceased subject was 23.7 °C at the beginning of the MRI experiment. Substantially more vessels are visible in the post mortem map because of the fully deoxygenated blood. The contrast in the images is equal (SHARP phase from − 1 to 1 rad; QSM from − ...